GM Truck Electrical Ground Issues & Preventative Maintenance (Silverado, Sierra, SUVs)| AnthonyJ350
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- Опубліковано 21 лип 2024
- Is your Silverado, Sierra or GM Truck giving you electrical issues? In this video we go over the electrical grounds which might cause potential issues in your GM Truck (GMT-800 Platform). By cleaning, adding dielectric grease and painting over the connection you are helping ensure your GM truck is going to give you even more years of trouble free performance.
This is very easy to do, and many people don't inspect these areas, even though, if corroded and left untouched, it may cause a lot of problems that may be hard to diagnose. Watch the video to see details.
#GMT800 #GroundIssues #GMTruck #ElectriclIssues #ElectricalProblems #G218 #GMground #GMelectrical #RVC #RegulatedVoltageControl
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I am a Mobile Electronics Certified Professional 12 Volt Installer (MECP Certified), Business Management Graduate (KPU), with a Professional Driver's License and a genuine automotive enthusiast who loves working on vehicles and I want to share my experiences with you. The goal is to help other people who can hopefully learn from my unique outlook towards vehicles, experiences and working practices.
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GM Truck Electrical Ground Issues & Preventative Maintenance (Silverado, Sierra, SUVs)| AnthonyJ350
• GM Truck Electrical Gr...
ANTHONYJ350
/ anthonyj350
GM Truck Electrical Ground Issues: (0:00)
Driver's side ground on front cab body mount: (0:37)
Radiator Support area grounds: (1:00)
Driver's A-Pillar ground: (1:32)
PCM ground on back of Engine Block: (2:00)
Conclusion: (4:30) - Авто та транспорт
There seems to be some confusion on word choice in the Title of Preventative and Preventive. They're both correct. www.merriam-webster.com/words-at-play/preventive-or-preventative
Use "preemptive" instead! ;)
@@holidayrap Aren't they all correct?
@@AnthonyJ350 Ya just being a smart alec.
This is a great video of an often overlooked GMT-800 issue. Did the wirebrush and undercoat procedure on the grounds @ the cab mount so many times I've lost count.
Thank you!
So I’m also trying to sort out some odd electrical issues, but the engine has never been affected. I can’t think of anything else that HASN’T been affected. Since you dine the same procedure several times, I’m assuming you were convinced you knew the culprit after the second time you did it. By the third time, what was your thinking as far as being obviously very, very convinced you were on the right path to fixing it? I have a fair bit of knowledge about basic signal and current flow, as I’m a live sound engineer, and these things can greatly affect my job performance. Each time did you see where you could make an improvement over the previous attempt? You know how when you are trying to fix something, and you THINK you knew what was and thought you had fixed it, but then the symptom persists, you are distraught over the time spent not fixing the problem. But often problems highlight solutions. For example, even though it would appear that all of these ground straps seem to be redundant , they are not, and the impedance and current on some of them are dependent on at least one current sensor in the engine bay. “Improving” current flow post current sensor can send some systems into glitch mode. I honestly was just asking if you were finally successful. Were you? Anyone who is repeating a repair like that has got to have a good and tangible understanding how the system works. And that’s my point. Just the fact that you’re doing this so many times shows something else is wrong as well. What were your results ?
@@AnthonyJ350 put
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Its really a good thing to check that ground on the passenger rear of engine it causes alot of problems! That ground on the frame under the driver seat area should be cleaned up every few years. The Rubber covers on the side post battery terminals should be removed because these side post batteries like to leak acid and trap it in the rubber cover and corrode the terminals causing lots of problems. These are 3 of the most common problems. Also the fuse boxes like to corrode make sure u have the cover on
Thanks for sharing all your tips!
Yes! My battery is brand new but it's oxidized the terminals almost instantly
I check and don’t have that passenger side ground. Can’t see that thinner wire on the block nor where it’s supposed to split off the harness. Have about 40 dtcs related to harness like knock, camshaft and HO2S
Could I just clip that ground on the passenger back side and run it to a different part on the block? While leaving the o-ring and clipped wire on the the block still?
@@mazdaman601 did this ever fix it?
Check fuel pump ground behind gas cap . Where bed and frame meet . This was my intermittent no crank/start problem fixed with sand paper . This area gets lots of moisture leads to rust and poor connection over time no a lot of info on this out there . Check it
Thanks for sharing this!
Great video! In case it helps someone-I learned to use anti seize to prevent corrosion on bolted electrical connectors on my boat. It doesn't easily wash out and it prevents corrosion of the connection.
Thanks for sharing!
Good idea I never thought about. It's not easy to remove off of your fingers don't wear gloves
Careful! Make sure you check the conductivity of the type of anti-seize you will be applying!
Thank God I just so happened to come across your video. Now I got to find your video about the current sensor and how to run the wire through it because that is exactly what I have suspected my problem has been with my 2007 Yukon I put a aftermarket stereo and subs in it and have been having charging issues with it since and major major voltage drop
I have this video that might help you ua-cam.com/video/OqylgRKiC-A/v-deo.html
Great video, i can see how to some people asking for better angles, or for you to zoom out because they are having trouble finding the grounds is their only comment. Everybody should realize that even though it is GM some of these grounds wont be in the same exact location as this truck, due to the year make n model. This video does give you a very good starting point to look and is very helpful in saving you money. As for the ones pointing out what looks to be cracked on this truck in their comments. This video is about ground issues and maintenance. Thank you for posting the video, I will be checking all the grounds mentioned in this video on my 2010 Escalade awd 6.2L Luxury trim.
Thanks for watching!
2006 Chevy Silverado
I should have done this on every GM car I owned. Grounds were always a problem. Great video - thanks.
Thanks for watching! It's a practice we do on every vehicle we own and we don't experience weird electrical issues because of it.
If you knew they had a problem with grounds why do you keep Buying the pieces a SHIT
Mark Shock if grounds are the only real issue then I’m gonna say that’s good to go. Especially considering that with fords for example have way more serious issues
@@markshock2254 every car has some electrical ground issues, unless they only operate under ideal conditions for electrical connection longevity. My issues on my Dodge Magnum began after driving on a 7 mile long dirt road deep into a National Forest. It was a remote recording I had to do as part of my job. Well the road is really fun with some “spirited” driving. Obviously I pushed it too hard because ever since then I’ve had a few intermittent stalling issues. I’m convinced all the “outside of the scope of its intended use” vibrations and shocks simply loosened several ground straps or the like in places I haven’t found yet. I have performed the clean and replace on every spot I can see, and curiously enough, there seems to beat least a temporary improvement every time. My point here is that the car still got driven on our Charleston, SC roads and definitely wasn’t babied at all. Yet I had not one serious electrical issue until over 160,000 miles. All of my accessories, window switches, door locks, HVAC, stereo, you name it, all works as it should. It’s not if you’ll have electrical issues, more like when, unless you drive on a pool table with desert dry air, use the vehicle regularly, and are the luckiest guy here. Every make and model suffers from reality. Mercedes, Ford, Subaru, Volvo, Chrysler, Volkswagen, Renault,you name it. What vehicle has given you the experience to declare other vehicles POS? I’m serious though. Because I will only buy that vehicle next.
@@markshock2254 The ONLY good fords are Chevy powered. In 35 years of building custom hotrods and alcohol drag boats I have yet to be contracted to build a Ford powered land / water transportation or race vehicle.
I always kinda wondered if I cleaned to bare metal shouldn't it rust. I guess that why you check the grounds from time to time 😲 Great video, helped my 94, gauges, cruise,wipers lol even brake lights! Crazy trucks
Glad it helped you! Hope you put some dielectric grease down to help preserve those connections.
Your a champion. My chev runs occasionally, dosnt shift ect. Defiantly going though all the grounds you mentioned 🤙
Let us know if doing this helped. The more people that give feedback helps others.
Will do, its been an issue for a while now, and as im in Australia, no one knows anything about them 🤣 its been sitting at my mechanics yard for 6 months, i took it back to my shop last week. (Fyi its an 03 silverado with the 5.3 and its 4x4). Im most interested in the earth strap you outlined behind the engine on the firewall. The errors im getting are cambus voltage too low, so im positive after watching your vid its earth related 😉
@@AnthonyJ350replacing the ground that you outlined behind the engine worked. I ran mine the same way you did, similar wire ect. I checked a before and after with the meter, got .4 of an ohm before, so defiantly had a problem there. (After .1 or so).
This worked for a phantom problem with excessive low idle, not shifting / delayed shifts, burning smell during shift, cylinder misfire codes ect. My guess is if you drive like this it will damage the transmission, it seems to effect the solenoids shift time. Thanks again for a great video.
@@chenzitong1 Thank you so much for giving feedback regarding this video. I'm really happy to hear it helped solve a bunch of issues on the truck. Don't forget to subscribe :)
Yep I'd say the wire behind the motor on my truck will probably be my fix for it thanks guys I'm ganna try an see if I can get my truck fixed an hopefuly it works out it wood run rely good clear the engine lite off thin like wen its hot it will lose power an not shift out sometimes not even want to go over 30mph I cud stop an Trun the truck off an it woodent fix it till the next day wen it wood be colder on it but this wormer wether has rely got it messing it up everything that can have a code for it it gets them all popping up now
Love your video please make another updated one soon if you still have the truck I want to go over every ground and see the location.
Yup, I still have the truck
Found the PCM ground was barely holding on. Fix and the truck started right up. Thanks. Didn't even know it was there. It's hidden more on the Chevy Avalanche.
Nice work!
Having the same problem how where exactly is the pcm ground?
@@ccheeks74 Back of the engine block, under the intake manifold
@@AnthonyJ350 thanks
@AnthonyJ350 is this the one on the driver side firewall going to driverside head??
I always feel free to add my own grounds, in fact, when I run it right to the NEG terminal I call it a dedicated neutral
Nice, sounds like you come from an AC voltage background. There's no neutral in a DC system.
You also have to make sure if you're adding grounds to the battery it passes through the sensor for the regulated voltage control system
ua-cam.com/video/OqylgRKiC-A/v-deo.html
Good suggestions for upgrading grounds ...GM vehicles aren’t the only ones with grounding issues. Anything that you run off-road can be subjected to ground damage. Good Job! 👍🏻👍🏻👍🏻
Thank you! Totally agree that virtually every vehicle can benefit from a simple ground upgrade, even as preventative maintenance.
Thanks for watching and don't forget to subscribe!
My mustang had crappy grounds. One of the first thing i do to any vehicle i get over 5years old is check/upgrade the grounds.
Yeah, but it seems to be TOO COMMON of a problem with GM made vehicles, especially trucks.
Great video
Recently got an 02 Suburban and am having starting problems. Turn the key to start and it just clicks once but won't turn over. Battery and alternator are good.
Do you think Cleaning and protecting all the grounds will solve the issue before I replace the starter?
I would definitely clean and upgrade the grounds. But sounds like the starter solenoid isn't happy.
Thank you, thank you, thank you! I’ve had issues with my 07 Avalanche, it wouldn’t shut off when the key was turned off, and it was draining the battery. It’s not the same as the GMT800, but you definitely pointed me in the right direction to finding a corroded ground coming straight from the battery. Amazing video!!!
Glad to hear the video was able to help you!
a blown voltage regulator can also cause drain back when key is off
do you have a better source to resolve your issue i have an 07 avalanche and am having the same problems
@@4g63a1 so repairing the ground fixed a lot of my issues, but I still had battery drain. We ended up replacing the fuse box and have had no issues since.
@@anandsihra I have an 07 silverado with 5.3. Having same issues for months including taking the key out and it stays running. Did the ground fix that?
Thanks for this video! I was able to locate and clean up all of the chassis ground connections on my '04 Yukon.
Nice! Did you notice a difference with anything afterwards?
@@AnthonyJ350 So far I have not driven the truck yet. I only ran it idle for a few minutes afterward and just checked the voltage gauge which indicated perfect at ~14 Volts. The two grounds located under the dr. side B pillar were very rusted, so I'm sure the effort was worth it for that reason alone. One reason I wanted to clean all the chassis grounds was due a lot of different intermittent, weird, random electronic activity like the heated seats activating and cycling on their own, cruise control dropping out, all of the 4WD indicator lights illuminating all at once, etc. like the truck is possessed, hahaa. Maybe cleaning the grounds will help.
@@CtotheDitti Did you put some dielectric grease in between the connections as well.
@@AnthonyJ350 Absolutely, yes. And I smeared more all around the exteriors of each connection too.
Loved the video. Im in the process of cleaning all the ground connections you listed in the video. I see that the small wire on the back of my engine block is covered in dry oil/dirt. Im going to move it to a different location, hopefully it helps. What gauge wire did you use for the small wire? Thanks again for the video
I used 16 gauge. Thanks for watching! Let us know how it worked for you.
@@AnthonyJ350 after cleaning all the grounds and moving the location of the ecm ground my yukon still had no power. I removed the plastic battery terminal covers and the issue has not happened again. I believe this fix is needed because the ground wires were very dirty. I would also add removing the plastic terminal covers to ensure there is a good connection with the battery.
@@f_beezy9285 Thanks for sharing!
Mines don't have a wire on back engine block ,so what the plan after that?
Long ago, Mercedes had issues with o2 sensors having issues. Well, the fix was to add a ground from the o2 sensor body to the frame. Rust, etc at the exhaust connections was not giving good ground pathway. These were the first type sensors without their own int ground in case that confuses you young ones.
But the PCM gets its ground from the vehicle and isn't it better to have a vehicle with less potential ground loops? Can you also explain why some Toyotas like an FJ Cruiser and 90's Hondas ground the valve cover?
Grounding the casings must help at least for the charging system since the ground for the alternator is the back of the casing.
I never heard the model T had catalytic convertors, them one wire o2 sensors sure are old school!! lol
I really like the way each ground is sectioned and then you label the area on the video. seriously ease to follow. thank you.
Glad you found this video helpful 🙂
excellent and informative video!
Glad you liked it!
Hey Anthony
Thank you for your help man i did everything you showed on this video
You are a great teacher
thanks
So glad the video helped you!
great video..i found 2 more grounds on my 01 sierra right below the gas tank fill on the frame rail..one goes to the abs module and one goes to the back of the gas tank fill cap i guess for static discharge.
Thanks for sharing this!
I remember a ground broke off a person's truck I know and occasionally the ABS comes on like Broken Ground was not replaced yet I'm thinking now maybe that's abs it is towards the back
@@AnthonyJ350 hey do you think it's broken around with the 2001 Chevy truck seems like it wants to stall one put in reverse definitely idles down occasionally ABS or brake light comes on did have a broken ground that wasn't replaced yet not sure what these grounds are called to buy Direct Fit replacements
Good job was having the same problem you got me through it appreciate you 👍🏾
So glad to hear you were able to fix your truck!
Che Che Che oh oh oh, thank you for sharing your added ground and prevent future matienance...
Appreciate your time and effort nice job
Glad the video helped!
do you unhook the batterie/s before you detach all the ground wire?
Doesn't hurt to
This was incredibly helpful thanks
Glad to hear it helped!
@@AnthonyJ350 yes. It did. I've been trying to find these exact damn ground locations for a year lol
@@tommytheT same reason you keep driving that damnd POS Yugo.
@@randygreen8916 Yugo I drive a Silverado plowing rig. Sit on a bottle
Thanks for the video. What model truck is in this video? My 01 gmc sierra 1500 doesn't have those ground wires under the a- pillar.
You're welcome and thanks for watching! It's a 2005 half ton shown in the video. 2003 wiring changed and 2005 it changed even more for the GMT-800.
do you have to disconnect the negative from the battery before doing anything else? or is it safe to remove, clean, and reconnect grounds with the battery connected?
To be 100% safe it's best to disconnect the battery, but if just adding grounds you can leave it connected.
Great job on the video, I completed mines a few months ago. Super thoroughly explained. 👍🏼👍🏼
Glad the video helped you!
@@AnthonyJ350 I share it when others needs the help. 👌🏼👌🏼
@@JDV10M5 Thank you for doing that!
You got yourself a new subscriber you have no idea how this video helped me
Glad to hear it helped, what was going on?
@@AnthonyJ350 so I am building an rcsb it’s an 01 but fully coverted to an 07 classic but it was all apart when I got it and I connected everything and it wouldn’t crank stumbled upon your video wich was a life saver and medicine for this headache thank you 💯
@@Pedritoe That's so awesome to hear!
Would a melted/shorted out blower motor/ resistor wiring harness for my 2013 Silverado 1500 cause my trucks computer to stumble or short out and flash warning lights for a second and go back to normal? Only did it every once in awhile but I bought a new harness so I guess I will find out, if not it’s gotta be a ground wire somewhere.
It could because several devices may share a circuit. I wouldn't definitely repair it and also redo the ground on the back of the block at a bare minimum.
Love the video. Been having a issue where i hit bumps and the truck shuts off for a brief moment. Hopefully this helps!
Hope the video helps you too! Keep us updated!
Did you get that issue fixed?
You're grounded young man!
Thanks for watching!
I've been having issues with my Chevy. I think you just helped me out. I'll try that in the morning.
Let us know if any of this worked for you.
It helped me fix many issues, from dash lights being out to 4x4 switch being out. On these chevys def check grounds and fuses before buying ANY parts.
2004 Tahoe, radio sound and door chimes are intermittent, one time it will be fine, another no sound at all. The rear view mirror mostly works but I sometimes have to give it a jiggle. Mainly concerned about the radio having no sound. Any idea as to what I should look for? Thanks.
I'd check the grounds under the a-pillar covers we show in the video.
Is the ground going from the engine bay body to the hood on the drivers side super important? Mine was broken when i got the truck 3 years ago.
I think it aids with radio reception. I worked on a truck and repaired it and the AM reception got much better. I would just fix it, it's there for a reason.
Mines been broken for years. Only thing that doesn’t work with the hood to firewall ground wire broken is the underhood light which I don’t use.
Thank you for posting
Thanks for watching!
Just found this after watch tons of videos. Yours by far was the best to explain it! I have a 2012 Chevy Express 2500 and started having issues. Went and looked at the ground strap and mine is worse than that one!! It will be changed today!!! Hoping it fixes my issues.
Please let us know the results after! All these comments help other out 🙂
@@AnthonyJ350 problem SOLVED!!!! Heads up for anyone that the bolt to PS pump and also to the motor mount is 15mm. You’ll need an open box end wrench and a 15mm socket (goes quicker). Van fired right up!!!
@@thegenxproject5941 So which ground was it? The one at the motor or at the frame behind the tire?
@@AnthonyJ350 it was the ground strap that’s attached to the battery ground cable (factory). It was rotten off and I gave it a little tug and it fell off. It was attached to the block (with battery wire crimped together) and then bonded to the frame. I got another strap (not the best) and grounded it to the power steering pump bolt and then to the motor mount bolt attached to the frame, turned the key and it fired right up.
@@thegenxproject5941 Right on, good job!
Every video I see there are two grounds like you show in the beginning. Mine only has one, I wonder why.
Not sure
Do you know which one of those grounds would be attached to the head lights. I'm trying to check everything before i buy new bulbs. The battery and alternator are good now looking for the ground wire for the head lights
The one probably near the radiator support.
Hey Anthony great video I'm not sure if this will work on mine but gonna try thanks
Hey Anthony it was the one on the front of the mother it's the ground for the starter heater and a few other things thanks again for the help
Thanks for letting us know!
Nice help thanks 🙏
Glad to hear it helped!
Should a 2002 Silverado have the ground from the A post to the kick? I'm having what I think are grounding issues and not finding a wire connected there. Thanks!
I added that wire in the video. No stock truck will have that.
What's the wire that goes from the frame to the hood? I have a 2010 silverado 1500, and that wire is not connected to the frame from the hood. I'm having a bad ground issue with lights flickering when using windows or sometimes when the transmission is shifting gears.
I honestly think the one for the hood is to help with radio reception, but I'm not sure. Try running a new ground strap to the transmission case, engine cylinder heads and a new ground from battery negative to frame.
Yes, in most cases the electrical components will utilize a ground running from another source, causing an extreme load on that ground wire. You can tell by the discoloration of the ground wires carrying too much load. So find the faulty ground source and replace those burnt wires....burnt wires have more resistance than normal...police cars have extra grounds on the exhaust system to calm the negative eruptions during the combustion processes of ionization and yes I'm a smart ass
Thanks for sharing!
Does it matter the gauge wire? I have big battery cable lines to ground with... They will never break
Thicker is always better when it comes to grounds. It'll be more durable and flow more amperage.
@@AnthonyJ350 perfect Thank you!! I noticed you mentioned a amperage sensor over by battery do you have a better picture as I can find mine 03 Chev Silverado 2500hd 6.0litre gas
@@berryhappy4883 Yes, I believe for your year truck it won't have it, I have a video on it though ua-cam.com/video/8NRajpYXGb4/v-deo.html
The acid finds its way in there replaced cables that we cut in half, nothing but white powder no wonder the car wouldn't start!
I came here for these exact issues on my 08 Silverado I think I found the issue. But I was wondering why your battery is on the right hand side looking at the motor and not on the left hand side behind the airbox and coolant reservoir. My battery sits behind those but your battery sit nexts to the fuse box.
My truck is a 2005
Do you think its a ground problem when i use the window switched the lights dim out and the cluster as well. Not only that when i turn the ac on the rpms drop and go up, also another thing is that when reversing and turning the wheel the truck sometimes turns off. Im beggining tk think its an electrical problem. Any idea or tips of what ir could be ?
Poor grounds and possibly old battery. A little dimming when those accorries run is normal, especially on power windows.
I have 2001 Silverado with led taillights that was blinking everywhere and I couldn’t figure out the problem. Until I changed out the taillights to original ones, that I saw that the bulbs were dim. My fix was the ground under the driver side pillar. Thanks a lot.
Glad the video helped you 🙂
Subbed!
Thank you! Every subscriber helps!
Been having problems with the speedometer gauge, it’s works most of the time but sometimes rarely it will not work at all I heard it might have to do something with one of the ground placements
Could also be the stepper motor of the gauge.
Did you solve it?
@@carloschataing5030 I noticed my battery was a little weak, I changed it out and the problem has went away. It would mainly only have problems in the cold weather when it did have problems.
I'm glad I found you! Okay so I own a 2500HD chevy and the electrical system is not correct. My FASS pump fluctuates in noise, when my blinker is on, the AC fluctuates, when I'm driving on cruise control, putting the window up stops it.. and there's more :( any ideas? Plz and thank you.
Check all the grounds and plugs. Drop the spare and Check, clean and dielectric grease all the plugs you can find along the frame and in the middle of it.
I like having a popular vehicle it helps so much when there are people on UA-cam such as yourself helping to make my investment even better
It does make a difference. We have a bunch of videos for these trucks if you want to check it out.
@@AnthonyJ350 i 1994 z71 short bed 4x4 c1500 5.7 L i paid a guy to put a break light switch in my truck well he didnt know what he was doing a he cut wires from the back of fuse box to ignition switch turn signal switch he cut all kinds of wires now im stuck and dont have a clue how to figure what wires go where witch color wires are missing in the plugs etc. Would you have a suggestion how i might go about fixing this mess im no electrician i dont like wiring but i cant afford to pay a shop to do it
@@douglykins684 You would have to drop the fuse panel out, match the wires and solder + shrink tube all the cut wires.
Hey Anthony appreciate the advice but there is s lot more wire that are cut up under the dash ignition switch wires a couple sre messing dont kbow what color the wires are that are missing same with break light switch and the wires that come out from behind the balk head box thats down by the floor board by the firewall on drivers side
Would love to check out your videos
Clean nice work👍
Thank you!
What’s up man I have a 2007 Chevy suburban I’ve added a k&n intake led headlights and a sound system (subwoofer ) 15” powers from 1200-2200 rms. The problem is that sometimes it works fine and all but when u turn on the bass or some times randomly it does is that it if u r driving it the a bunch of codes start to pop up the gage does not read anything like the rpms speed limit … the windows don’t work. What does work is the lights engine, seats to recline up and down and sunroof window. If u turn it off it will not want to start again and might have to take a while or a lot of cranks to start it. The other thing is that it know has a new battery and a new starter all fuses read good (inside and outside) and the alternator works good. What els could it be wrong?
That's a lot of power. Did you upgrade the grounds and the positive wire from the battery to the alternator? Also you'll want to use a high quality battery like a North Star or even install a secondary battery.
Although my truck isn't one of the full size Chevy SUV's mentioned in the description of your video it IS a Chevy Trailblazer (2004) with the same 5.3 liter V8 as the larger Chevy SUV's. Recently my AC stopped working and after taking it to my trusted AC service tech (I live in Arizona, so yes a trusted AC tech is VERY important to have) he said that the compressor had a bad ground and referred me to an auto electric mechanic who was 45 miles away and had no appointments open for at least the next month. I have found some information on the possible grounding locations for the Chevy 5.3 motor in a full-size however I'm yet to find any info on that motors grounding locations in a Trailblazer, Any advice or input you might be able to share would be greatly appreciated.
You can trace the tires from the compressor and also test them. So the switch signal going to the compressor is fine? If you turn on your defrost setting does it work?
Dude, you just saved my truck ! Thank you so much 😊
That's awesome! What did the video help you fix?
Stay tuned, we're doing a bunch of videos on the Silverado coming up!
A missing ground solved all of my problems !
@@maliciousmetaldragon3920 Was it the one behind the intake manifold on the engine block?
AnthonyJ350 yes the one behind the intake and I added a few extra grounds
@@maliciousmetaldragon3920 Thanks for the confirmation, helps a lot of other people.
Very informative
Thanks
Thanks for watching!
Excellent video and knowledge on possible issues with no start. I have my sister's 2010 suburban ltz with the 5.3 vortec she stopped driving for a month and it won't start, just turns over. In the fuse box it was no fuel pump relay or fuse in the slots. I added both, installed new fuel pump, new preprogrammed FSCM. I jumped the harness to the module and the fuel pump runs strong. I have no lights on the dash. Maybe grounds, ecm, pcm, etc.
I had another viewer recently. Similar symptoms, the BCM was toast. How did you reprogram?
Can your scan tool see the BCM?
got a gmc sierra recently to use for towing [2500hd] first off the digital radio display was a little glitchy, then when i tried the trailer lights they were really dim until i dropped the coupler onto the ball BAM perfect lights, but also the integrated trailer brakes will not respond at all as if they are not even plugged in. it seems that grounding maybe the issue, what are your thoughts?
Very possibly, I would go over the grounds, clean them, dielectric grease them and retighten them.
Got a 2001 Silverado rusted all to hell. Never touched the grounds, never had a problem in Michigan salt
I feel you on the Michigan rust. I wish I was fortunate enough to not have had ground issues though.
Use Fluid Film on the undercarriage to keep rust at bay.
there are worse places in winter than the salt/sand mix the county uses in Mi. Found this out after moving to Montana and ran through a winter with magnesium chloride being used on the roads. Have to beat rotors off the hubs after one season
Maybe a drawing and a red dot or arrow to depict where each ground is located? I know my truck quite well and I still had a tough time figuring out what area you were referring to!!!!
Just look for the bolt with the wire attached to it.
Ya poor video
@@AnthonyJ350 there are many. Just showing the zoomed in view doesn't help us know where to find it. You might want to show the general are, and then zoom in on the particular location or describe where it is. Good vid otherwise. Thanks
@@AnthonyJ350 I thought the same thing while watching the video. It's a great video and you're very helpful but It's disappointing to see all your excuses for why you don't need to zoom out, etc.... I stopped counting the number of comments on this.. clearly math wins....5+ similar comments to zoom out + 5+ reasons the viewers need that= just thank people for their input and consider it for next time. Thank you.
@@befaffled1635 Thanks for the feedback!
Nice clean work- good job!
Thank you!
My 6.0 vortec dies while breaking also my voltages hand drop when I cut on my fan for heat and AC. I put in new battery and upgraded alternator spark plugs and wires. I haven't checked the small wire yet. Help me please!
Check the small wire
Dielectric, sometimes referred to as tune-up grease, is a viscous " non-conductive" waterproof substance used to protect electrical connections ...
Use a conductive contact grease at the contact points then one can apply a non-conductive die-electric grease over the point after its been installed.
Thanks for the comment!
Yes thank you...... many people really don't have a clue about dielectric!!
Wow just youtubed this...I was using it all wrong! Thanks for the comment.
No-oxide
One time we could find the main Body harness for the dashboard main harness ground so I soldered a wire to the main harness ground and grounded it problem fixed
Nice, good job!
Great video, would you happen to know which if any of these deal with turn signals? Recently, my signals all stopped working.
This video may help ua-cam.com/video/gL9J3TP24UM/v-deo.html
That's your multi-switch in your steering column
I have a 2006 gmc sierra 2500, when I press the brakes both rear blinkers turn on. I’ve narrowed it down to a bad ground but I’m trying to find the spot the rear light circuit grounds. Front lights work great. You have great videos that have helped a lot! Thank you for any input!
You can solder wires onto the ground wire of each taillight and nut and bolt it to the frame. Spray with Fluid Film on the grounding point of the frame afterwards.
@@AnthonyJ350worked great! Just don’t have the rear brake lights but solved my blinker problem! Thank you!
@@michaeljoyce7847 This might help with the brakes ua-cam.com/video/_Zw9j3o0RRw/v-deo.htmlsi=dRDLETZH7ynP68Pf
I had to disconnect the ground on the driver side frame and sanded off all the old fram coating to bare metal then reconnect the ground wire and repainted and my problem was was fixed
Alde Sselle what problem were you having ?
yes Alde Sselle. What problem did it fix?
Don’t ya hate when people solve their problems, and then share it without explaining what the problem was. 🤬
Nice, good work!
How about the cracked frame does that help bad grounds?
What are you talking about?
Never seen a frame that cracked before. Suppose he doesn't even see it?
@@ronevrerett5670 It's not a cracked frame. It's paint chipping away or undercoating
Nope it wouldn't. That's just cracking in the undercoating.
I have a GMC Sierra 2500 HD and my issue is the right flasher is blinking fast but also the flasher light in the right hand mirror is not functioning
Along with the interior lights that don’t come on when the doors open. Could this be a flasher relay issue? I also read somewhere that it could be a ground wire issue on the right front rail but there was no mention of the location of this wire on the frame in the discussion forum. I have changed the lights bulbs with new ones so I know that wasn’t the problem. Any suggestions would be appreciated as don’t’ want to go to the dealer for which could be a small issue that I could fix. Thanks
This video might help with the flashing issues ua-cam.com/video/gL9J3TP24UM/v-deo.html
Hey is the does the last ground you did help when my truck goes in limp mode I was told could be a ground that can mess with the signal that goes to the tac module
Check the small ground shown in the video that goes to the top of the back of the engine block.
My 03 Sierra 2500hd 6.0 has been going in limp mode for 10 years
Pan out for a wider shot so we can see what area of truck you are referring to.
Otherwise, good info.
Thanks for the feedback!
Do you disconnect the negative battery when replacing grounds?
No I just add them on
I have you may be able to help with, what is the most common cause for Engine Reduced Power, message on dash display ??? & also what would most likely be draining battery overnight - when you have been sure to have turned EVERYTHING off ?????
Please help if you can, thanks.
Did you figure out about that reduced engine power? Iv been going on 2years now and its driving me up the wall
Jerry Oooo draining battery overnight is the cluster if u open it up there should be some resistors that overheat and desolder them self’s so u need to resolder them
It's most likely that thin gauge ground wire on the back of the block shown in the video.
My highbeam icon tends to turn on when my truck is completely off will any of this fix the problem?
Hmmm there's a chance. I would maybe look into taking out the high beam relay or replacing it. That might also fix it.
You can never have enough ground.
Completely agree!
What kind of tech flex do you use on the 4 gauge wire?
Just whatever our local distributor carries.
Nice video man. Going to upgrade and do some ground maintenance on my 09 Silverado soon. What model Tesa tape do you use for under hood applications? Also can the relay box on drivers side be grounded additionally?
We used Exterior Tesa for under hood and chassis applications. I never redid any grounds at the distribution center under the hood.
What you can do is clean it and put dielectric grease on the connectors of all the mini relays and all the plugs under the hood.
Hi I Wish You Was In Boynton Beach Florida I Can Pay You Fix It
I'm sure there's a bunch a decent car audio shops in your area that can do the job easily if you show them the video.
how about a wider angel so we know where you actually are
Sorry can't for the areas we're under and how close we have to get to show detail.
Agree totally. Start wide then zoom in
At 1:00 , I have a question if anyone knows… I checked on my 2000 Silverado and mine doesn’t have a ground wire there, weird thing is the thread inside looks shiny which means someone or previous owner took out the ground? Usually I would of seen a dangling wire (ground) swinging around but I don’t see it anywhere or know where it’s suppose to go.
Do you see the wires tucked up anywhere?
Would this be true for newer GM's? Currently exploring a possible ground issue with my 2020 2500HD with a plow kit that keeps on frying my RCM.
You'll want to check the grounds under the a-pillar covers and similar spots I've shown in this video.
Why would I have two of those same wires coming from the area of the harness going to the back engine. I can't find why there would be two of the exact same wires being grounded to the same point. I can tell that there is a point in which both of the wires had corroded and the previous owner had soldiered 2 new wires in place of the corrosion, have you heard of there being 2 grounds going to that same ground on the engine. 02 sierra 2500 hd 6.0. Really would apriciate your idea
Probably for separate devices
How do you know ..how well it is fastened behind the motor the one you hooked up too ?!
Which part in the video are you referring to?
I added the second battery to my 2012. Have a stereo system with Rockford Fosgate power. Put the big the, twice. One for each battery off each side of the engine bay. I did not... NOT.. run any of my 0/1 big 3 cable through the factory amp clamp. I kept the factory ground strap there. My 8 farad capacitor has the active voltage reading display on it and it charges at 15.1 volts. I set my truck up a year ago, live in PA (by lake Erie winter weather belt). It is perfectly fine as is. Good quality (I run Sky High Car Audio and Rockford Fosgate wire) oversized O does not fit in the stock amp clamp, but good quality wire, done right, with the factory ground strap through the clamp has proven to work perfectly fine in my truck. Just food for thought for you! Thank you for a very good video!! Much appreciated and I will be under my truck checking those other grounds as soon as the weather breaks here. Thank you 👍👍
Thanks for sharing your experience about the regulated voltage clamp. Would like to hear more updates in the future.
Thanks, I’ve got instrument cluster issues on a 01 Silverado. I’ll give this a try.
Let us know. The cluster stepper motors might be worn out.
I had crazy gauges and have gone through every ground to no avail. I finally came across a video and I pulled the cluster and spliced the ecm ground and went right to the dash frame. So far, my gauges have been fine.
Can you please comment on fire wall to hood ground. It’s purpose etc. Thank you
Eliminate static electricity or help aid in AM reception as the whole vehicle acts like an antenna to help that radio band. That's all I can think of.
Rust prevention
Hopefully you get this message within your video you were pointing out the ground wire into the right of your hand it appears the frame on that truck is cracked
Nope that's just undercoating.
I’m just now finding this video. I’ve been having issues with my truck flashing service theft deterrent, service stabili track, gauges bouncing back, and forth etc….. I’ve replaced the entire ground wire from the battery itself and cleaned and sealed the 3 places it bolts to. I was wondering you ever saw that problem, and could point me in the right direction.
Did you check the ground at the back of the engine block under the intake manifold?
Thank you very much. Now I know what caused my problem on a Escalade that I recently bought. I picked it up on the east coast and was on my way back to Chicago with it, it rain perfect for 500 miles or so and then all of a sudden I had every idiot light come on including StabiliTrak that I couldn't get rid of with the button on the dash. Once that light came on the engine started running very rough and I headed for the closest exit. It never made it down the ramp, the engine quit. That caused a $700 tow bill to the rest of the way home. It's in the shop now and so far there are two bent rods and issues with the other bank that isn't torn down yet. Looks like the engine will have to be replaced. The grounds seem to be the major cause of all this. These modern vehicles all have issues with bad grounds over time I'm told. I'm use to working on the older vehicles that never had issues like this. I wish I had seen this video before I started driving home.
After you update the grounds and you get the new engine in, let us know if all the lights turned off.
Im not sure if grounds would cause engine issues like that, what year is the Escalade? Was there enough oil in it?
The modern technology is supposed to prevent, not cause, bent rods and the like. Your computer detected something very wrong and at least one of the manifestations was the stability control light staying on. It thought that either the four wheels weren’t turning the same speeds(with allotments for curves and bumps and the like), like a wheel speed sensor, or maybe a pitch, yaw, or roll sensor was getting an intermittent connection, or even the front axle versus the rear. But the engine started running rough and ultimately bent some rods? Maybe cam position sensor went haywire? That would still shut the engine down before it ate itself. The only ways to bend a rod in a modern V8 that are likely in everyday driving would be maybe hydro-lock from ingesting water through the intake, which is crazy yet happens more than it should. People give too much throttle while driving through deep water and a lot of air intakes point downward, like a vacuum cleaner. Under higher rpm or throttle demand there is a fair bit of vacuum present in the intake tract. Low engine speeds would not allow water past the filter, much less the throttle body. But there isn’t enough time for the computer to react when the gas pedal is pressed hard and heavy demand for air intake occurs but instead there is water, in spray for, busting through the filter, and zipping past the mostly open throttle blade and even past the valves. At that point, depending on the compression ratio of the engine it takes very, very little water in the chamber during the compression cycle to prevent the piston and rod from being able to compress what is supposed to be a gas, not a liquid with, let’s say poor compression characteristics. Momentum becomes the next enemy for the next cylinder. Do you have nitrous injection on your Escalade? Didn’t think so. How about a supercharger? Extreme and instant back pressure in the exhaust system? Maybe no oil and spun a bearing, then a rod cap, then too much clearance allowed the rod to hit the cylinder wall near the bottom and bent it that way. Sounds like it was low on oil, maybe very quickly, maybe an oil cooler line broke and spewed hot oil onto a motion or speed sensor, the lifters lost pressure, making engine run like crap, and the cam sensor wouldn’t detect that to shut it down? And the oil sensors had t yet recognized there was in issue in their respective locations? A modern engine bending a rod or two is really a strange scenario unless there are several unknown circumstances. Please let us know what you found.
@@andrewhigdon8346 Thank you for the reply, Andrew. When I picked the truck up at the dealership it had fresh oil in it and it was full. It was the first thing I checked before I bought it. I did know that the engine didn't sound good and I asked the dealer if the truck would make it back to Chicago and he said he wouldn't bet on it and that's why it went for such a low price that I got it for. The body is cherry, that's the reason I bought it. There isn't a bit of rust under the truck on any panel or frame member. That part of the truck was well cared for. What was not well cared for was the drive train. After the rods were bent and it wouldn't start I had to call a tow truck to bring it straight to the mechanic that my son recommended. He attempted to get the engine running but it did the same thing for him that it did for me on the side of the road. It would race the engine and then stop running but it sounded awful. All the idiot lights came on at the same time so I think the damage was caused from an electrical problem. When the mechanic took the engine apart he called me to come in and take a look at what he had found. The first thing I noticed was bare wires all over the top of the motor and down the sides, all the conduit was off of them. Then he showed me the rockers that had white paint marks to identify the cylinder they came off of we presumed so someone had already been inside that motor. With the VVT system in that motor part of the damage might have been caused by low oil pressure but he checked the oil level and it was still at the top mark and clean. As soon as I saw the wiring I figured I needed a new harness right off the bat and all new sensors but when he took the heads off there was pieces of metal every where. Then he took the oil pan off and it was full of metal chips. He said he wouldn't think of trying to repair that motor and advised me to get another one and don't get a used one. I elected to go with a Jasper engine since the mechanic recommended it. This week he put in a new front differential because it was making noise and when he took it apart it was completely shot. Now I'm having a problem filling the gas tank even though he changed the canister. I guess that means the lines are clogged? This truck has also had a transmission problem from a standing stop to first gear. This jump happened six times since I've put on a little over 1,000 miles on the truck. I'm sure who ever had this truck and who ever worked on it didn't change the fluids like they should have. When I'm finished with this truck it will be better than new. :-)
@@AnthonyJ350 Yes, all the lights in the dash are off and it runs good except six different times it hesitated and jumped from a stop to moving again. Besides the engine and wiring hardness I had all new sensors put in and both catalytic converters were replaced with a new Y pipe and oxygen sensors. I think this a transmission valve body problem. I was looking at a replacement by a company that sells them for $330 that are upgraded. I need to send them a description of what it's doing. If a tromp on it hard going up a hill it acts like the computer doesn't know what to do with the transmission. That happened once. There is another part they are talking about on their website that has to be purchased as a GM item that has to be programmed to the vin number but I'm not sure that part is needed until I discuss it with the valve body company. Last night I just bought a heated/cooled cup holder for this EXT that came out of an SUV Platinum along with all the dash pieces to make the interior look better. At least in my eyes. :-)
Any suggestions on headlights not working. Passenger side went out, but drivers side was working. Then driver side went out. Bulbs replaced but neither will work. Could it have overloaded a circuit? My engine fuse box only lists the headlight fuse to replace. I do not see a headlight relay. Is there a grounding wire for the headlights? Thanks
Check the grounds on the front of the frame I believe on the rad support area.
Thanks Anthony. I'm having a no start, no crank issue. I think it could be ground issue. Could you spare any advice? 2003 sierra 2500 hd.
Check all your fuses under the hood and inside the truck. This video might help too ua-cam.com/video/W5OHrYJqtEQ/v-deo.html
Im having issues with lights coming on on my dash intermittently (traction, park assist off, etc.). I also lose radio and signal sound. This happens on the first drive when i get up to 40 miles per hour. Then throughout the day. Which ground should I check?
The one by the firewall and the one at the body mount right behind the front tire would be the top ones I would check.
But you'll definitely want to go through all of them.
Would a bad ground cause weird electrical issues such as wipers coming on by themselves, lights turning on when key isn't even in ignition and blinkers coming on?
Possibly or a bad turn signal switch.
Bullbutter
My back 1 burnt in half and it still get real hot, but now a mechanic seen the front 1 was loose to engine and it's no crank, no start . Check gauges and battery lights are on and before I broke down the check engine light came on and plugged RS2 SCANNER(OXYGEN SENSOR AND CATALACK CONVERTER. Just subscribed too. Thank for help 👨
My gauges go out of control too. Way past full tank and battery checked 12.6 and when ignition on goes to 9 or below. Help me please Im going to truck now.
Seems someone is jealous of what I have and what I can do because I'm a landlord and used to be an IRONWORKER/ CERTIFIED WELDER. Like sabotage
I would replace the wire and put a little dielectric grease where the connection meets metal to avoid corrosion later on. Hope you get it up and running soon!
Pretty sure my next-door neighbor or someone like evil. I LISTEN TO DENNIS AND ARNOLD MURRAY WITH THE SHEPHERD'S CHAPEL AND THEY PREACH FROM THE OLD KJV BIBLE AND CAN PROVIDE EVERYTHING THEY SAY IS VERSE BY VERSE AND CHAPTER BY CHAPTER. IT'S REALLY CHANGED MY LIFE. They also bring geek and Hebrew and manuscripts to English!
I have a 08 Silverado sometimes when I start it you can let go of the key and it still cranks till it starts or not but always works on the second start if I have to turn the key again. I can never duplicate the issue it just does it whenever it wants hot cold doesn’t matter
Try spraying a teflon based product like this in the key tumbler ua-cam.com/video/459aGGQlvmc/v-deo.html
@@AnthonyJ350 I have the same problem and I doubt that it have anything to do with the key tumbler
Even if you tap your key the vehicle will continue to crank until it fires or it hits the time limit. I think it's two or three seconds
I'm having shifting issues on a 99 Silverado, cold it runs great, changed tps sensor cleaned all the connectors and changed a couple fuses, and shift solenoids a and b, but when it warms up it acts like it's slipping in every gear, thinking when it warms up it grounds out. p0880 as well. Thank you
Just for sh*ts and giggles, can you try grounding the transmission case to frame with an 8 or 4 gauge wire. Also check the ground under the intake manifold at the back of the block.
@@AnthonyJ350 Will do, I've had no help with any of this until now, so thank you.
@@bozzy7946 Always happy to try and help. Electrical gremlins are always tough, so it's great for me to hear what fixes your vehicle so I can learn as well.
What size wire did you use for the main ground?
I just used 4 gauge