Chevy Trailblazer Idling Issue SOLVED simple easy fix
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- Опубліковано 12 вер 2024
- Trailblazer (Envoy, Bravada) idling issue, even worse when turning on the AC, the car would just completely shut off. Would go below 500 RPM.
Simple solution, clean the throttle body, connected to the electronic idling motor.
This is a 2004 Trailblazer with the 4.2 inline 6 cylinder engine in it, but this issue is common with the whole generation, 2002-2009 (1st generation Trailblazer, and other vehicles with the same engine/throttle body/electronic idling motor).
Simply...
First disconnect the positive battery terminal connector screw and separate it from the battery. (important step)
Remove the metal strap holding the intake hose to the throttle body and remove 2 screws holding down the plastic intake box.
You will then see the throttle body connected to the electronic idle motor (one piece).
Next remove the harness connected to the top of the throttle body/idle motor. Then remove the 4 screws holding the throttle body/idle motor in place. The throttle body/idle motor then will be completely removed. Clean the inside of the throttle body with carb/throttle body cleaner, a few bucks at your local auto store or even walmart. Clean it thoroughly, blow through the small hole on upper side as well, has a tube coming out one side. Spray it a bunch till you see no grease/oil/gunk in it and wipe it down good.
Next replace all the parts that were removed. Remember to reconnect the harness connector going to the throttle body/idle motor.
DO NOT start the car yet.
Next you have to reset the PCM (powertrain control module), you do this be still keeping the positive battery terminal disconnected and open the fuse box and remove 2 specific fuses that go to the PCM. For the I6 (inline 6 cylinder engine) remove fuse 10 and 28 as shown in the video. With the battery and 2 fuses disconnected wait a few minutes then reconnect the battery as well as the 2 fuses.
Make sure ass the connector and hoses that you disconnected are put back together then start the vehicle up.
In some cases the vehicle may still act weird a little but sometimes it may take a few drives, even days, to have the electronic idle motor to reset itself. Once it does the car will be running smoothly, even with the A/C on.
Thanks for watching, like the video if you wish and subscribe to my channel, I post videos every now and then of common problems with vehicles that tend to occur with many different people/vehicles. Go watch my other videos as well.....Thanks!!
My man! 2006 Trailblazer was sputtering at 400 rpms and dying soon after. This 20 minute job solved that and it purrs at 6 - 700. Thank you so so much, your video helped my family immensely. Thank you, thank you! I hope you have all the best in life delivered to you and yours.
Man, this video is great!! I have a 2004 GMC ENVOY that had all those symptoms. I cleaned the throttle body and it now runs perfectly. I can't believe something as simple as that would have a huge impact on the engine's performance.
Thank you a lot!
No problem Alex, you are welcome.
I'm glad I helped. Have a great day and God bless you and your family!!!
Hallelujah!!! I travelled 5 hours from home in my 04 trailblazer when my heater started bogging down my engine at idle. Eventually the car shut off and would not restart. After a $100 tow and $300 garage fee all they could tell me was that fuse #28 was blown and upon replacing it they were able to start the engine. I drove 5 hours home and scheduled a service appointment at the dealership... meanwhile I do my research, came across your video. And cleaned my throttle body. I too was surprised that something so small and minor hindered the engines performance so much.. Thank you!
Very important on a throttle body system that you actually use throttle body cleaner not regular carb cleaner unless it actually says safe for throttle body on the can.
The throttle body does not need to be removed. Use throttle body cleaner ONLY and clean the bore and throttle plate in-place.
I just fixed mine after watching your video. I appreciate ya!!!
PSA: (2005 Trailblazer) You have to remove 2 of the ignition coils (10mm) to reach the two bottom bolts. Cheers!
AWESOME DUDE!!! Great video--I did exactly as you said and fixed my idle problem. 2002 GMC Envoy. It wouldn't idle with the air conditioner on and kept choking down. That throttle body was filthy. Cleaned it with some carb. cleaner and now it works great. Thank you for posting this video! It was exactly what I needed to fix the idle. I couldn't believe it was the throttle body that was the culprit. Thank you. I didn't even disconnect the battery--just pulled the fuses and reinstalled them. God bless you and your family. W Rusty Lane K9POW in eastern Tennessee
This did help fix my issue on 2005 trailblazer (148,000 miles). I used throttle body cleaner (about $5 at local parts store) and saved a ton of money I would have spent at a mechanic. One thing I didn't understand though - if I disconnect the battery, why do I need to pull fuses too? Fuses don't do anything if the battery is disconnected.
The reason I say disconnect the battery and fuses out as well if to just double check myself and if you have any codes that were previously turning on the check engine light, disconnecting the battery will reset the check engine light. Instead of having to use an OBD II reader or going to an auto store to have them do it. It doesn't hurt to disconnect it.
@@aaronmoldovan4090 5
Taking the fuses out for the pcm will force the pcm to reset so it can relearn with the cleaned throttle body…if u don’t do that and the throttle body was really bad..removing the carbon build up will cause the throttle body flaps to sit in a different mark then before and could cause a no start issue or cause it to run like crap….always a good idea to reset the pcm after messing with something like the throttle body
Thank you! Watched your video and did exactly what you suggested. It worked perfectly! Truck runs like new. You saved me/my family several hundred dollars by avoiding taking it to a shop. Thanks again!
You're very welcome! Thank God. God bless y'all
thanks man my trail has 129000 miles on it and i really needed to change the spark plugs, the dealer wanted 400 sears wanted around 250. i followed you instruction and with tools and parts cost me 60.00
You're welcome! God bless:)
thank to this video I was able to fix the low RPM problems that I have on my 2003 Trailblazer, yes after I took it apart I saw lot of deposit clean that up set the fuse to the side that one indicated in my case I gave about 20 minutes put all back together place the fuses back where they belong and turn on the engine and oh boy the low RPM problems gone thank you so much this really help me a lot mister Aaron Moldovan :)
I'm really happy I could be of assistance :) you're welcome. God bless
I just did what the video said, and HELL YA' the truck is running much better! There was alot of gunk/junk in that throttle position valve. Made a world of difference!!! Recent repairs were: Belt, Map Sensor, Thermostat,Plugs, regular maintenance of course. But once I cleaned this this, the truck ran smoothHHH. Very little variation on RPM between 6-700 rpm's. Happy Days!!!
AWESOME! Glad to hear that. And I hope I helped. God bless
That’s crazy!! That’s exactly what I’m experiencing right now!! Luckily I work right next to Orieily’s so I’m gonna go grab a bottle of carb cleaner and get that done! Thank you brotha!! You are definitely getting a sub!
Dude!!!! Your video helped solve my issue perfectly!!! I cleaned the Throttle Body and did the fuses...Super easy! Totally worked! You rock man!
Troy Sisson Are you have any other issues now such as when you turn the A.C. on the idle jumps really high? or to the point where you don't even have to tap the gas pedal in order for the car to go 20 MPH?
No, luckily no problems like that at all.
No problem Troy, you are very welcome man.
I'm glad I helped. Have a great day and God bless you and your family!!!
This video helped me with my 06 trailblazer..It was idling really low and a would only stay cold when driving. Cleaned throttle body and runs great...getting better gas mileage as well....thanks a bunch!!!
NICE!! I'm glad I helped. Have a great day and God bless you and your family!!!
Ty 4 posting! My 02 trailblazer is doing same thing but was told it was oxygen sensor.. being newly divorced after depending on a man to fix my car troubles..I figured I'd go to UA-cam I've learned so much! Can't wait to try this!
Same problem here. Turn on A/C and truck idles down and bogs out till it's dead. Autozone had me replace the MAP Sensor but thinking that's going back after I give the old one a good cleaning. One thing at a time though. Gonna go get some throttle body cleaner and give it a shot. I'll let you know what occurs. Great upload and extremely thorough. Thank you!
Hello Eric,
Thank you, I am glad to help. Praise God, He saved me from dying 3 times, I am His and here to serve and love others:)
Let us know how your vehicle is running now?
Have a blessed day, God bless!!
Dude, I cannot thank you enough. My 2006 Trailblazer now runs like New car. Had some trouble with cheap vacuum hose under the intake, crumbled in three places, had to rig it with new tiny rubber hoses and gorilla glue...minor setback, for a major successful overall result....New battery, New alternator, New idler pulley, new tensioner...$340, clean throttle body...priceless.
Hello hello,
WOWOWOWOWOWW AMAZING, Praise God, I am alive because of Him, I almost died 3 times in my life but He physically saved me!
Have a blessed day, God bless you and your family ya!!!
WOWOWOWOWOW I am so excited that your vehicle is fixed and running like new hahahahah wow God is good always!
Thank you much for sharing this information. I was able to get our old motorhome back running smoothly. I'm not sure that this actually fixed the real problem, but at least your post got me pointed in an untried path that got some results quickly involving only my cheap labor. Hope the best for your future! (I only did the battery and fuse thing, not the throttle).
NICE!! I'm glad I helped. ENJOY YALL VACATIONS with the Motorhome. Have a great day and God bless you and your family!!!
GOD BLESS YOU! You just save my husband some money. No one knew what was really wrong with my truck. Thank you VERY MUCH!
You're very welcome! God bless you too:)
Appreciate the video bro! I’m gone wake up early tmrw morning before work & clean it! I’ve done it before, but it has been a min! I only have a P1345 code that I been having for years! Prevents from getting state on time, but my idle is really rough & it takes awhile to to accelerate moving up in the RPMS 🤧
Don't use carburetor cleaner. They make a throttle body cleaner so you don't risk damaging electronic components.
Thank you for the advice. I’ll keep that in mind, thank you sir.
Have a great day and God bless you, your family, and your future endeavors!
Jay Cee i
Oh brother. Just admit you used the wrong cleaner.
PB BLASTER and a piece of Scotch Brite works best
Carb cleaner is harsh on rubber orings seals and electronic components, soo is brake cleaner I only use specifically for what it's made for ,also I believe disconnecting the battery without pulling any fuses is good enough
Hello Ray Ray,
Thank you for the response. Yes I now realized after many comments on the cleaner that the other cleaner is best haha. Thank you so much for even taking the time to post about it.
I hope your vehicle is running well.
Have a great day, God bless!!
It’s important to use actual Throttle Body Cleaner. Most other solvents are too aggressive for the internals
I picked up a trailblazer for a song and has the identical problems...i am a technician and should have known to do this...Ill five it a shot tomorrow...thanks for reminding me of the things I forget about...damn im getting old...
Hello DME, (DME like for aircraft technicians??)
Amazing, I am glad to have reminded you!
Let us know how it goes and how your vehicle is now?
Have a blessed day, God bless!!!
Yup the only way to properly clean the TB is to remove it.
This can also cause dim headlights and no AC because of slow idle.
Remove scrape and spray and scrape again until clean.
NICE!! I hope I helped. Have a great day and God bless you and your family!!!
Thanks for the video, this was bugging the hell out of me trying to figure out why it kept wanting to stall out. Would do it with just the fan on and no ac as well. Glad it's fixed. Found this video while trying to figure out why my dash gauges were all screwed up. So 2 problems solved, like a new vehicle. Oh and mines a 2004 Trailblazer as well, thanks again!
THATS amazing. I'm glad I could help:) really. oh wow!
Have a great day and God bless you, your family, and your future endeavors!
Eddy Erhardt what was going on with your dash gauges?
So I'm 6 years late to your channel, but glad I found it. I haven't done the work yet, but now I'll take 'er down and see if it helps.
I have a 2005 Buick Ranier ...basically the same vehicle. Thanks!!
Just had the same problem and followed your instructions and now it works great, thank you very much Aaron.
WOW, amazing looking back years ago when I put up this video.
I'm glad I helped. Have a great day and God bless you and your family!!!
Best video ever! I have cleaned the throttle body and entire area, sensors, spark plugs/coils, intake, etc. But Never heard or read about pulling the PCM fuses! I replaced oil sending unit and crankshaft sensor, but kept having low oil pressure/stop engine when sitting still idling and couldnt figure out what else to do. There might be a couple of other things i need to do, but I'm going to follow this video first and see if that helps. Thanx So much for sharing a piece of info that Ive been missing for 6 months! Erin
You should of have a video cleaning the throttle body and removing it would really help
"should of have"
Mark another one up for Aaron! Did what he said and it runs like a dream! Thank you so much man!
Wow, are you serious!! Amazing! So thankful it helped :) God bless you John, have a blessed day!
ya this totally worked for my 2006 trailblazer, it was really simple and only took an hour, no new parts required!! thanks very much its like brand new!! :)
Hello,
I am glad my video helped. Have a blessed day, God bless!
I dont usually comment but that worked like a charm thanks keep up the good helpful videos
Nice, this is the exact problem I have with my 04 envoy. I'll try this tomorrow and let you know what happens haha
Fixed it! It was dirty as hell, I didn't even think it would be bad!
AWESOME!!!!!! I'm glad I helped. Have a great day and God bless you and your family!!!
Thank you very much....it really worked...Aaron Moldovan thanks to save my money to change the alternator because every mechanic suggest me to change the alternator to resolve this issue. But meanwhile your video worked. I highly appreciate your diagnose and recommend this video. It seems this video was specially for me!!!!!!
farrukh ali They always do that,change the alterator,its like they get a bonus if they sell one.lol.
No problem Farrukh, you are welcome.
I'm glad I helped. Have a great day and God bless you and your family!!!
Thank you so much bro. I have been through so much with this and you just solved my problem! I wish I knew you so I could buy you a pizza and a beer.
God-bless you and I'll see you in heaven brother.
Hello hello,
Wow that's AMAZING brother!!!! Praise God, He saved me from dying 3 times in my life and I am His and love helping others like Jesus did!
If you'd like to donate to me sure:) I am across the world on mission in one of the most unreached nations in the world.....message me about it.
Have a blessed day, God bless!! SOOOOOSOOO glad this video helped you!!
if you dont move the butterfly you wont have to worry about the fuses. you can actually damage the throttle body by moving the butterfly due to it having electronic components and its programming.
But, if you don't move the butterfly, you'll never get it clean like it should be.
I also have a problem with my front vents, they don't work! I've read were disconnecting the battery and resetting something will fix the problem!
Hey Dionne,
Thank you for your response.
Yes, resetting, It's also part of this video I made.
Let me know how your vehicle is now.
Have a blessed day, God bless!!
Great video! I own 2 03 trailblazers and cleaning the throttle body almost needs to be done at every oil change. It gets dirty so quick on em. I did not know about pulling the fuses to relearn part though. Thanks for that! One thing I will say is to avoid disconnecting the battery at all costs on these things though. The actuators for the ac are notorious for messing up when the battery gets disconnected and turns into a whole notha can of worms nobody wants to play with. Hope you’re having a good day.
I’ve gotten to the point to where I disconnect the actuators, it’ll only blow thru the front vents unless I plug them back in if I need defrost and in Texas we don’t use much of that anyways
Yes this is very common in my engine is stalling after cleaning the Throttle body so I’m having other issues
Hello Sterling,
I hope all is well now!
Have you done all that the video said to? The resetting and all.
I hope and pray the best for your vehicle brother.
Let us know how your vehicle is.
Have a blessed day, God bless!!
Honestly helpful but disconnection of the battery is like removing the fuses. Removing fuses is not necessary if u disconnect the battery for at least 10 min to fully de energize
Mine is having this same problem right as I needed an oil change. Changed the oil and started running fine but the rough idle was still there. Headlights get dim sometimes too. Going to try cleaning the TB and hope this clears it up!
I hope I helped. Let me know here if it worked. Have a great day and God bless you and your family!!!
MichigaFish did it work? what was the problem??
In your description you said take off positive terminal off battery. But in the video you said positive and switched it to negative. Its negative right? I was told always take negative off first when disconnecting battery. The when installing positive first then negative. Although with the trailblazer and envoy. You dont want to take battery off because the computer doesnt hold its memory like other vehicles.
GOD BLESS YOU! That was exactly what I needed. My car would stall out at red lights. I used an 8mm and 10mm socket to remove a total of eight bolts to remove resonator hoses, resonator, and then Throttle body. It took this amateur 15 minutes start to finish. Works great now!
I drove my car for about a 2 hours with ac on everything was good until i stop at a red light had in Neutral the fcking car shut down on me i was wondering what the fck happen it went back on in a few minutes block traffic smh
@@anthonyromero47 did you try what he posted here? You symptoms sound just like mine and it worked great for me.
I like your style! Gonna try this on my '03 Trailblazer tomorrow. 280,000 miles
Aaron, we need the codes, really, please. this may help so I don't have to repave the o2sensor as my code reader says.
I really don't have the code. I'm truly sorry.
I hope this fixes the issue. Let me know here:)
Have a great day and God bless you, your family, and your future endeavors!
PO446 Evap Emissions System.
Hey guys I had to get a new battery put in the other day. My 2004 trailblazer ran like a dream prior to me doing this. I've cleaned the throttle body changed the filter and it improved a bit but it still hesitates and sputters and rides extremly BAD, service engine soon light flashes as well. Any more novice suggestions or should I just bite the bullet and take it to the shop?
my truck got oil in it but the gauge go up an down it that why my truck say stop engine???
Have you checked to see if it was one of your ignition coils? Let me know. Have a great day and God bless you and your family!!!
Joe Crago well did you ever figure out what it was when you changed the battery?
I've got the same problem period but mine's throwing a campus machine tensor period. I changed the sensor and still having problems! But I've 1st time for me reading all these posts.You could have a plugd up fuel filter. Or maybe Vacuum leak.
Omg I have the same issue removed the battery and the fuses and is working good now thank you so much for saving me money Aaron
Hello Pablo,
AMAZING!!!! PRAISE GOD. He the reason I am alive right now!
Have a blessed day brother!!!!! God bless you!
WOW, I am so glad your vehicle is FIXED hahahaha WOW>>>>>YEAH God is GOOD always
Thanks man, this video helped a lot
You're welcome! God bless:)
So... Question. I have an 07 envoy. Major problems with it. Can a dirty throttle body cause my battery to die while idling? My car shakes at stop lights or in park. Ive had it replaced just to still have problems again. Whenever it rains a lot-- my low power engine light goes on. Due to a hole in the hood and water dripping down there. GM even recalled about this and no solution!
Hello Sara Bee,
Thanks for the question.
It doesn’t seem likely that idling would cause your battery to die.
But the shaking could be your throttle body, try cleaning it like my video and see what happens next. Let me know if this helps
I heard that using carb cleaners will damage the coating in the throttle body but you used it anyway....
So did everything went right with you ??
All went well. Thank you for the response. Let me know if you had an issue with your car. Have a great day and God bless you and your family!!!
Möstafa Al-Basri they make a throttle body cleaner specifically not to damage that...
Thanks! This worked perfect and saved my a lot of money today!
That's awesome! I'm glad I could help. God bless
My car is having the same issue (same car as yours) with the ac BUT my car is also shaking is this the same issue you had????
A slight idle gave it a "shaking motion" slight.
since all these modern cars use sensors and solenoids all over is it a good idea to pull that pcm fuse and negative battery terminal everytime you do ANYTHING under the hood even if your just unplugging things to check/get to other parts? or is it simply just for re-learning or updating codes???
You mention the codes you received. Not listed. What were the codes at that time if you remember? Thank you in advance
I have done this but I am still having the same problem. At first it was idling a lot better but as soon as I press on the gas it just goes back to the same thing. I have put in new fuel filter and pump. I'm kinda lost as to what to do next.
Do you have any codes on? And did you try replacing the pedal position sensor which is the throttle position sensor really?
I don't have any codes but I will try your recommendation!
Hello, has the issue been fixed? Let us know. Have a great day and God bless you and your family!!!
I did! It turned out to be the cam phaser solenoid. Replaced it and now runs great
For my 2004 Bravada, I had multiple issues and have worked through them. I look at it like I'm doing the work myself so saving money and the parts replaced are old. Replaced fuel filter, put in spec ac delco plugs. I had a miss under load and flashing cel that would go off. Original coil packs with 170k miles replaced with ones from AutoZone. I'm sure one or two were not functioning properly, but replaced them all. I don't like replacing one at a time, unless that is all you can afford or u have a used one lying around. The old ones are most likely not working to spec, even if not fully failing. And for sure the others will fail and u end up taking off the air box every few months. Just my opinion.
Cleaned throttle body and new gasket. Improvement at each step. Vehicle running better than when I got it three years ago.
But still slight stutter at idle. No cel on. Will try cam sensor next.
When you remove the throttle body to clean it is htere a gasket that needs to be replaced?
There should be an o-ring type seal, if I'm not mistaken.
I would just replace the gasket since you have access. I used a felpro 61337 from advance auto. Confirm the correct part for your specific vehicle.
Hey, I'm having this same issue. After everything was done did you have to do an idle relearn?
I just disconnected the fuses and battery and it must have relearned itself
Hello, has the issue been fixed? Let us know. Have a great day and God bless you and your family!!!
Mine still idles hard & the RPM'S go up & down!
Thank God You had this video, it helped, i saw another video and that one seemed too drawn out.
Hi Aaron,
i watched your video and i did the same but it didn't help with solving my problem,
my issue was some time during idling and i turned the A/C on my engine went off but my idle rpm is normal. and the second issue during driving at 4th speed and rpm 2000 the rpm start staling up n down between 1600 to 2100 so do have any idea what cause that please help.
Louay Homayssi hello, I'm sorry to hear that your vehicle is having issues. First off, when you did as my video instructed, did you do the re-learn/reset with disconnecting the battery and fuse?
And lastly, can you explained again more clearly what is happening with the RPM when driving? Specifically and all. I can send you my contact info to contact me directly if you don't prefer to keep contacting here.
Its works! Thanx man!
No problem Victor, you are welcome.
I'm glad I helped. Have a great day and God bless you and your family!!!
I have that EXACT SAME symptoms with mine(2005). Guess what I'm doing later today?! Thanks man! And I'm gonna clean my k&n filer. It is full of junk too! That explains the dirty throttle body!
Hello Seth,
Glad the video helps, let us know your update on cleaning the intake?
Yup! It worked! It's breathing ALOT better now! It purrs like a cat at idle now!
Wowowow that’s amazing! So thankful! God bless Seth!
Don’t forget to share this video with other Trailblazer owners! And like this video and click the subscribe button. :) have a blessed day!!
My Trailblazer does not stall out however the idle is very low especially with the AC on, it also has a chatter type noise but does not burn any oil. From a start it has no power unless it is completely floored and then once it reaches speed it is ok. Does this seem like yours?
Seems close to mine, try cleaning the throttle body. I hope I helped. Have a great day and God bless you and your family!!!
I have the same problem on my 2003 Trail. did you have to purchase a gasket for the throttle body ? but I do have those effects after I turned the AC it will even shut down the engine and the AC is working properly
I like to have the blue fel-pro gasket on hand just in case it doesn't want to seal properly. Very cheap and readily available at local auto store. I keep spare for future cleanings just in case on the road when it pops up. less than 10$for the gasket from autozone.
Amazing. Thank you for letting us know.
Have a great day, God bless!!!
You don't have to disconnect the battery if you pull the two fuses. That's the purpose of pulling the fuses... so you don't have to disconnect the battery and risk damaging the instrument panel gauges or resetting the clock.
The reason I say disconnect the battery and fuses out as well if to just double check myself and if you have any codes that were previously turning on the check engine light, disconnecting the battery will reset the check engine light. Instead of having to use an OBD II reader or going to an auto store to have them do it. It doesn't hurt to disconnect it.
oh wow! I hope this fixes the issue. Let me know here:)
Have a great day and God bless you, your family, and your future endeavors!
Buy a small code scanner and plug into your comp port under the dash. You can clear all codes with it. 24.99 on ebay
Thank you for responding Beavis,
Yes, I do have a scanner. But for this problem, the battery needed to be disconnected to reset the module.
Let me know how your vehicle is running.
Have a blessed day, God bless!!
Did your car cut off while driving and slowing down ?
Hey hey Syraus,
I hope you are doing well.
Similar issue yeah, loosing power and cutting off.
Have you found the issue with yours??
Looking forward to hearing from you.
Have a blessed day, God bless!
Do you pull the fuses after you disconnect the negative battery or before
Checked one out today and it did the same, stalled when AC was turned on. Drove perfectly, with it off.
Now, my question is... How do you know if that's the problem or you need a new AC compressor?
Hopefully, you could answer me soon b/c I may purchase it tomorrow. I appreciate it, thanks!
+Ace Equality And, did yours throw any codes/CEL? B/c I didn't see any.
Well do what I did and clean the throttle body and do the fuse/battery process and see if that helps. And if it is the AC compressor than you're going to know after. And it wouldn't hurt to have your throttle body cleaned:) avoids having future issues with it. (Sorry for the late response)
How did it go? Did you ever find the issue? Let us know:) Have a great day and God bless you and your family!!!
I ended up buying a different car, ended up having a few other problems with it. Thanks for asking, really nice of you. Blessings to you, as well.
It doesnt matter disconecting either pos or neg terminal right? Also after i cleaned TB. It idles at 1000 for a minute then slowly very slowly works it way to 600. Let it idle for few minutes then shutoff. Minute later start it up and repeats same process of starting at 1000 and slowly down to 600. Maybe it will take some time for pcm to relearn. Its done on a 2007 ascender/trailblazer
Hello Clarksville,
The negative normally, but do both if that makes you comfortable, east.
Also that is interesting.
Have you went through all the steps I stated?
Let us know soon?
Have a blessed day, God bless!!
i get a p1509 code but get the same symptoms but car only stalls out when i come to a stop do to the rpms just dropping every once in a while
Thanks for letting us know.
How is the vehicle running now?
Have you done what the video instructed?
Looking forward to hearing from you. Have a blessed day, God bless!
What does it mean when you have the defroster on and the engine starts shaking I have a v8 2003 Chevy trailblazer
Do you take out fuses b4 or after you disconnect the battery
Aaron I'm losing power on my 2005 gmc envoy and we did everything and still nothing any advice will help please thank you
Hello R.Kevin,
I apologize for the late response.
I hope all is well now.
Have you cleaned the throttle body and did everything my video said?
Looking forward to hearing from you soon. Have a blessed day, God bless!!
Thank you for your video. My question.. If no codes have been tripped do i still need to remove the fuses & disconnect the neg cable just to clean out the carb/throttle control area
Hello Clarksville,
I hope you are doing well.
I am going to say yes.
Just to be safe:) worth it.
How is your vehicle running now?
Looking forward to hearing from you.
Have a blessed day and God bless!!!
No you don’t. I cleaned mine without doing that
Did it have a strong gas oder coming out the tail pipe? Mine is doing that as well as the smell
I didn't have a strong gas odor from the tailpipe, but these vehicles specifically have an fumes/gas canister leak. Search online and you will find a lot of threads. God bless you and your family!!!
my truck is doing this right now exactly detail for detail
Do what I did and let me know what happens. Remove the whole thing to get the best cleaning done
How did it go? Let us know:) . Have a great day and God bless you and your family!!!
Do you remember the code YOU had? I didn't see you put it on here.
No. I'm really sorry
What issue did you have?
Has the issue been fixed? Let us know. Have a great day and God bless you and your family!!!
i have a 2006 trailblazer and when i start it up on a cold night or after a cold night I have big problems....when it warms up she runs great. Any tips???
Appreciate you bro thanks
I’m working on one right now and it does not accelerate or reverse any reasons why?
+Calvin Cochran Jr Take a look at your fuel cap gasket and your evaportive canister purge valve. They can leak or get stuck causing idle problems with no code thrown. You can do a test drive with the fuel cap off to test the valve.
Thanks for helping others!!! :) Have a great day and God bless you and your family!!!
jeff anderlik where is the evaperative canister purge valve located??
why do you take the fuses out when you disconnect the battery that should kill everything to the car right
It should "kill" all the codes but there are reasons to do so to protect the electrical circuits. I remember getting information years ago when I did it and it said to do so. Have a great day, God bless you and your family!!!
when you disconnect the battery and then reconnect, your HVAC actuator motors will cycle through their settings and it has been known to break them. by only taking out the fuses you are avoiding the motors having to relearn and cycle their positions.
I’m having same problem I thought it was an injector I’m gonna try this
damn never knew about the fuses...always did it without...fml lol good upload!!!
Yeah haha. Glad it could help:) I hope this fixes the issue. Let US KNOW here:)
Have a great day and God bless you, your family, and your future endeavors!
redsunn21 thats what I fukn said why no one told me this.. thx for this!!
D'vawn Williams you figure i go in and buy the new fuses that would be about 10mins put the new ones on i should be all set
I'm having similar issues with my 04 trailblazer ls. Only thing is I have no Codes? I cleaned the throttle body. And sometimes it will just randomly cut off on me at idle. Not sure what it could be.. I changed coil packs, spark plugs and fuel filter. Wondering could it be the fuel pressure regulator? Idk. Any suggestions?
Oh.. so that's why mine does that. Huh, never knew. Mine does do the whole shut off thing most of the time with the A/C on like that and sometimes it just adjusts itself and starts running like it should. Well at least I know why it does what it does now.
What will cause my trail blazer to sound loud while driving? And how up on the rmp does it normal suppose to go?
Every car sound is different. RPM should be around 700-800 normally. I hope I helped. God bless you and your family!!!
Would cutting off AC hose stop car from stalling and shutting off? I bought N 03 Tblazer AC hose is torn or cut off disconnected. I heard noise lastnight sounded like sumthin broke or was hitting sumthin idk sound bc I got scared howeva touched gas it made noise louder I said a prayer and noise stopped I went 2 my sis had bro in law test drive n chk all out no probs found. I swore noise was if was my motors lifter or sumthin idk exact noise but it was loud and seemed like Tblazer didnt want to go since I touched gas hrd noise get louder . It hppnd arnd 55mph after been on northway for a cpl times yesterday was first time I hrd that noise. But b4 that I got shaking and bucking no chk engine light is on and last night along with shaking and bucking was that loud noise as if a part was catching onto anotha part or as if was an heavy part making a noise. What wld make shaking n bucking then now a loud noise which each time it does shaking n bucking it's like a hesitation not wanting to still go but usually touch gas pedal n it stops the bucking n shaking actions so I try touch gas lastnight and it made the noise even louder. Now this suv drives really nice without issue being presented and issue presents only once in awhile yes usually per each trip out but it went frm hppng once to a few times the nxt day thn now theres times prob dont hppn until I've driven so many miles. I did notice when shake began was wen I tk cruise control off or try hold gas steady at 1 speed. But then now seems not to occur going steady if issue hadn't yet that day presented its self 4 shake n bucking actions . Idk I'm all confused as 2 y issue only comes once in awhile, why now seems of when it comes on it was worser lastnight bc came with an loud noise. I frkd out scared so no I cant recall wat exactly the noise sounded like but I do know it was loud and touch gas which normally straightend out my probs of shaking n bucking it hadnt lastnight fixed issue instd noise got louder. After noise hppnd I drove frm location on rd it hppnd to my sis place which was prolly 15 give or take miles while idling I noticed it 2 sound dffrnt I told my bro in law chk under hood I swore noise was frm under my hood and he said that the noise while idling was my motor lifter n its normal 2 hear it idk if hes lyin or guessing but I swore that noise was what hppnd where touched gas n it got louder thn all sudden after I prayed I was thn able get bk up to 55 like nothing and heard no noises again. Now is there a way 4 an motor lifter 2 make noises while driving and it cause noise get louder touching gas pedal but then stops noises and SUV bk 2 normal but then afta a bit idling afta hearing noise the lifter make sound while idling? Shut down engine turned bk on and that noise was eitha not there or was way quieted down. Wat wld be wrong if was my motor lifter that caused that loud sound and thn straightened bk out? Like if was bad I do no cld put sum rod threw an engine but this noise was like while climbing a small but bit steep hill now on northway it went fine and was no actions or sounds until I was off northway for miles I drove after I got off northway I hrd nada but thn that time the shake n noise scared crap out of me touched gas hrd it louder. What does my prob sound like it is? For a wk shake n bucked touch gas issue stopped wen picking up speed then lastnight came that loud noise with shake idk if was bucking 2 but touch gas didnt fix prob of shaking like normally it was doing. I have driven Tblazer for many miles maybe 1000 by now within a wk n that's see if issue wld stop but lastnight afta that noise hppnd it ran fine agn except idling 1 time hrd noise n bro in law said was motor lifter so sound went away n nada probs . Ok I've noticed they hkdup stereo with dvd player n otha stuff in it so dvd can play while driving so that's wrong then I notice they installed an remote starter 4 keypads n if I start auto with keypad seemz as tho shake n bucking is less I start it with keys seems issues are more often idk if how I start engins even has anything do with shake n bucking or the stereo hkdup wrong but I say wrong bc dvd not suppsd play while driving guy said his buddy did it so the kids cld watch DVDs while suv was being driven n also ac hose been torn or cut off. I'm suspicious is it that I just need an tune up but if so wat wS that loud noise I heard which touch gas it got louder thn it straightened up like nada hppnd yes I believe my prayer to God straighten it up but also maybe it wld straightened up later thn it had idk. Pls helpme. Only myselfies is main driver so actions hppn once in awhile not constant is y wen ppl try it out they not exprnc what I hear n feel bc wateva which I not figrd out wateva it is 2 make this stuff hppn once in awhile but once wateva must hppn 2 cause issues to occur gets 2 kicking in 2 cause probs is when they occur. I know tranny dont slip shifts normal but once I shift 2 or 3 times I noticed sum times bc held gas steady the shake n buck occurs I swore sounds like tranny tryn shift down or motor sound wen bucking occurs but I'm told noise was wheel bearings thn got thm chkd I'm told they old but tires dont move 4 the test so idk wats up yes I've hrd a clunk or scrape noise like in reverse I swore the rattle n clunk noise was oil pan touched a bump but 1st night I bought this SUV I heard an clunk or bash sound it didn't present its self agn thn got brk pads chngd which were really down 2 metal yesterday they were chngd so I figrd clunk came frm thm till lastnight wen I hrd loud noise n acted like sumthin was hitting sumthin or wateva n held me bk where touch gas was louder so I kept pedal steady 2 climb hill thn eventually coasted n touched gas after praying n drove fine. Cld tune up needed make loud noises also I got gas frm a dffrnt store . So b4 noise hppnd the dffrnc that occured ystrday frm my normal drive habits was I tk northway no probs , so higher speeds no probs, brk pads got chngd, used dffrnt store gas. I do think buck n shake means get tune up but that noise I need no if was motor lifter wat wld cause noise thn all sudden SUV bk 2 normal driving? cld throttle body dirty or sumthin due with gas or tune up needed cause a loud noise with the shaking n bucking ? If is motor lifter cld water in gas or wat cld make that thump or all sudden make noise? I was told a bad lifter or sumthin wrong with a motor lifter wld make noise constantly not come 1 time n disappear.
Hi my trailblazer is 2005 model LT with auto climate control some times while idling the rpm goes down below 5 and check gauge light on and off Suddenly when the rpm goes up but If i disconnect the battery it will affect my ac actuator so how can i solve this rpm fluctuations my throttle body is perfectly clean but still this problem comes in between only at idling not while running kindly share your advice
Do I disconnect the negative side of the battery?
What codes were u getting ?
I cannot remember, it's been a few years, I am very sorry. God bless you and your family!!!
Thank you great video👍👍
I had good results withAMSOIL Power Foam, sprayed in while engine runs.
Hi I have a problem with my 2005 trailblazer, when ever I go up an incline I get a problem where i get about 3000 to 4000 RPMs but I only do about 20 -30 MPH and I can't get any higher than that.
Hello. That sounds more like a transmission or could be the computerized throttle. Try cleaning it or see if you're getting any codes
Alright, how would I get the codes and what would I be cleaning?
+theadog1011 go to a local autozone and they will check it for free with their OBD 2 scanner. And what I cleaned in the video, I explained which piece.
Hello, has the issue been fixed? Let us know. Have a great day and God bless you and your family!!!
I did this and im sure i put it all back together correctly and now it accelerates on it’s own, any idea why?
great video! i did the same thing except use throttle body cleaner same thing in a can. It just doesn't damage the sensors if they get sprayed on, and its lets corrosive
Thank you Andrew,
Yes, I realized after a few comments here I should have used throttle body cleaner, I just had the other can handy haha.
WOW, DID it fix you issue????? Looking forward to hearing from YOU??
Have a blessed day and God bless!
is the negative or positive battery cable?
I just do the negative. I hope I helped. Have a great day and God bless you and your family!!!
What happens if I don’t disconnect the fuses and the battery?