Charging System Operation and Testing (94 Toyota Celica)
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- Опубліковано 20 кві 2018
- Intermittent charging system/battery light comes on while driving problem.This video covers the typical checks that must be done on a non computer controlled charging system before replacing an alternator.
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Video breakdown:
- what you need to do when the battery light comes on :20
- battery and charging system fundamental checks 1:12
- idle voltage with no accessory loads 2:02
- battery/charging light test 2:27
- load circuit voltage drop test of the alternator main cable and ground 3:07
- accessory drive belt check 6:23
- battery terminals and wiggle testing 7:49
- alternator noise/whining 10:04
- why it is so important to fully charge a battery before installing a new alternator 11:45
- alternator stops charging, battery light comes on 12:42
- wiring tests during the no charge condition 14:00
- tap test on the alternator restored charging 18:34
- charging system wiring diagram 19:14
- alternator replacement 22:30
- what is a surface charge and how do you get rid of it 26:03
- first start with new alternator and it is still not charging 28:00
- retest of the system after an overnight trickle charge of the battery 34:40
- loaded circuit retest of the charging system (alternator output test) 36:21
- open circuit testing mistakes made earlier in the video and why it is so important to do loaded circuit voltage tests 38:08
- Voltage Testing Fundamentals video (loaded circuit testing and why ohmmeters suck) • Multimeter basics, vol... 43:39
- Toyota Echo with a bad computer ground (again, the ohmmeter missed it but loaded circuit voltage drop testing found it)
• Poor running, flashing... 43:39
- Bad fuel pump ground (low power with tail-lights on!) voltage drop testing was key once again • Low Fuel Pressure from... 43:39
- Outtakes 45:23
For more information on this topic, I have written a “field manual” called Engine Performance Diagnostics which is available at www.scannerdanner.com as an eBook or paper book.
Want even more diagnostic training? Whether you are a DIY trying to fix your own car, someone looking to become an auto technician, or a current auto technician that wants to get more into diagnostics, subscribe to ScannerDanner Premium www.scannerdanner.com/join-sc... There is a 14 day free trial.
On ScannerDanner Premium I will bring you right into my classroom at Rosedale Technical College. You will find page for page lectures taken right from my book as well as exclusive classroom type case studies. What is so special about these classroom case studies? I pull live problem vehicles directly into my classroom and we troubleshoot them in real time, using and applying the theory and testing procedures we learn during the classroom lectures. There is no better on-line training of how to troubleshoot automotive electrical and electronics systems anywhere!
Disclaimer:
Due to factors beyond the control of ScannerDanner LLC, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. ScannerDanner LLC assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. ScannerDanner LLC recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of ScannerDanner LLC, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not ScannerDanner LLC. - Авто та транспорт
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Don't be too hard on yourself, Scanner. We all appreciate what you're doing up here in Canada. You're helping people, many of whom are struggling to make ends meet. Handling adversity and ego, I think, is the most defining quality of a great mechanic. In this video, I think you've done a good job of modeling humility, graciousness, and fatherhood too. Good teacher. Thank-you.
My grandpa & my dad taught me the basics when I was a kid, but I had alot of friends that didn't have the benefit of relatives familiar with automotive workings. Had your channel been around then, they'd all be pros today! We had a thirst for info, but it was never easy to get. In those days, at least around here in MA, automotive knowledge was a big secret - I can remember any time I got into a jam with something I, and my dad didn't understand, we'd never get the help I needed by calling a local garage. They'd tell us, "Well bring it in here, and we'll take care of that!" I could never afford to! That's how I got into this field! Just your channels alone are a HUGE value to the WORLD - not just a few guys down the road from you. Think back to when we had to scour phone books and make 15 phone calls to find parts or information -- now, we grab a mouse, or a phone, and click or poke away. Amazing amounts of info out there. You should be extremely proud that you're a HUGE part of that information - you've probably helped MILLIONS of people across the globe get back on the road. That's really something when you stop and think about it!! 👍
What's even better is you get to do this with your family - great that they get to learn right along with all of us, and you get to spend time with them. No greater blessing than that! 🙌
Excellent, top-notch video, as usual, Paul! Always love the outtakes, too. 😊
Thanks brother. I needed to hear that right now. You have no idea. You've been a great friend for a long time.
Thanks Paul. Glad I could lift you up. It's the least I can do!
The time you take to cover the basic methodology and then show it in practice is testament to your desire to teach and improve people, something you do very well. Much obliged 😉
Paul Danner: The heart of a teacher and the passion to do the best job technically possible. Excellent!
Caylum (Hope I spelt it correctly) is growing fast in both diagnostic as well as editing skill watching the outtakes. As always Paul we can count on you proving the fix not just saying this will fix it”. One of the best things about your teachings
Great video. The best part was you mentioning spending quality time with your two sons. You are a Great Father and a Wonderful Instructor. As always, keep the videos coming.
Excellent training video Paul. Even with your boo boos! Most would edit them out. I've been doing mechanic work for 52 years, and I still make the boo boos. I just have to laugh at myself and go on. You keep making the videos,and I'll keep watching them. You and your boy's have a great day.
Scotty Kilmer's Celica NEVER breaks down, and it's done a hundred Billion miles!
toppledgod in weed smoker land 😂
Yep...And the Celica is scared beyond belief! It knows if it breaks down... Scotty will do a burn out with it and blow cigar smoke at it.....**shudder**....and then god knows what else...
Chris Fix even better
@@andilemhlongo9744 Jeez, @ScannerDanner is dope, Andy! But I wish he could have used the standard voltmeter, not the expensive Oscilloscope!
@@KeithSWD nicht ganz richtig.ein pico 25xx hat den gleichen preis wie ein gutes multimeter und du bist diagnostisch viel besser aufgestellt.du brauchst nicht ein teures snap on.kann ich mir auch nicht leisten.mit dem scope mach ich genauso gute bilder wie paul.dir alles gute & lg.
So glad I watched all the way to the end, great tip with the test light loading the circuit. 20 years in and still learning, thanks Paul.
I enjoy watching and learning with your awesome training videos. To me, your channel is the most I have ever enjoyed and the best in training and teaching mechanics, students and whoever likes to learn how to fix cars properly and professionally.
Thank you and God bless you.
Thank you so much! I've been hearing a lot from you lately, you must be binge watching? Awesome
That belt issue with new alternator was funny the look on your face. Your humbleness is what keeps me knowing you are one of the best. You are an honest technician and mechanic. Having a charging issue with 2007 Ford 500 a friend’s car. I know the fords have the dumb but smart charging system. He used an aftermarket alternator and did not replace his 11 month old battery like I told him to do after testing. I told him to go OEM on the alternator and buy new battery. He bought new battery but light came on with aftermarket alternator. He is looking at buying the new OEM alternator.
So much respect Danner! Always feel better after your videos man. Not only do u teach--but also bring a lot of hope & encouragement to those that just might need it.
Keep up the great work guys. The ending was a nice touch too. Going to have to throw a shout out.. Caleb is doing a great job.
Great video Paul! Love the outtakes! Some people don’t realize how hard it is filming and make it look professional! Also props for leaving the mistakes in there! 👍👍👍
After all my years of being a tech i still do all the necessary testing but sometimes i don't think of why i do that testing. This video reminds me that the simple things can bite you. Well done all three of you.
Great job , love your interaction with your boys, win win situation- keep up the great work as always!
Paul we don't have service stations these days. Those were our days. Kids know them as gas stations....😂😂
Great video man I love how thorough you are I try to teach people all the time but have a hard time explaining things as well as you do
Man these videos are the best. Just bought a '94 Toyota Pickup. Buddy says it needs an alternator, but I'm not going to put a 90 dollar part on a hunch. This video answers all of my questions in how to properly diagnose.
I am a dad and sometimes make mistakes especially while working on the car so this was a great one for me! I was laughing when camera-man Caleb said, "This is why you let Pete change the parts." It was cool to see in the outtakes how much he helps you during filming.
Paul another great teamwork video. Nice family interaction. Quite enjoyable 👍
very cool, covers most critical checks and helps me diagnose and repair my alternator/wiring faults
Great video. I did the belt on my 3800 LeSabre that way a few years back where it was a groove off and riding the edge of the crank pulley . Easily done .
Just a thought... through the years I've learned when forced to charge a flat battery with a new or rebuilt alternator; avoid letting the engine idle as much as possible. No need to race it either... the idea is to avoid traumatizing the new alternator by keeping it's cooling fan rotation fast enough up to mitigate high amperage heat generation. Does it always work? No. A fully charged battery is always best. Cool videos, Thanks!
You clearly spend a lot of time helping people out with quality videos and all of your jobs so it's awesome to see you bringing the kids in to get time with them.
mharradine57 He helps people which is great but I've heard you can make some $$$ on UA-cam based on the amount of views but you have to have a large following as he does and I'm still sure you have to get alot of views.
…you mean ‘and’ not ‘but’
Danner , your the Man er my name ain’t tater salad.
Pulls alternator out and Goes “ Viola” 🤣 🎻I mean CmoN dude that was …I laughed out friggin loud and I rarely do that. this is , is the sharing, of one persons craft with others , and in a Way that is old school , you learn - not just the ‘answer’ bc that’s just not how it works with multifaceted complex problems , you learn to internalize a persons thinking process and problem solving ability , and that , my friend, is huge . Like calculus , the idea being we flex the mental muscle to make it stronger learning on the job used to be The only way , not the university but the ‘school of hard knocks ‘ as they say . Point is , your style and vernacular, the cut of your Jib is such that it’s distinctly you and American and it echoes a quality that we might cultivate more of , a quality known more by the greatest generation’ but that is still carried here and there . I am a piano techician , tuning and fixing pianos , a craft with its own set of technician cluster#*%^!that has sent many techs to varying degrees of “ Yes!” And “ Dang!” And … can’t ever get down on ye self , brohammer , bc I see your depth of character shine . And the 95 civic I’m smashin on in the driveway is becoming a veritable training ground (along w saving $) when it’s along with your vids. The prior being something more valuable to me . Thank you guys
I have learned so much from your videos and I appreciate all you do in preparation and presentation for our benefit!
Seriously consider a $25 tone signal generator from Amazon to trace broken wires. Used one for years on 24v commercial fire and security systems.
got a link to one you like?
Amazing content man definitely appreciate you taking the time to record it and give a detailed explanation for us who don’t know as much my dad had taught me the stick trick for the alternator but in general alternator was pretty bad and just needed replacement & as well as the battery glad I watched your video was a tremendous help man! Thank you!
Great "behind the scene" editing by the Danner Boys, great job guys really enjoyed!!
This is the first regular vid I’ve watched since joining premium. I’ve watched up to chapter 20 and I’ve noticed something interesting. After watching so many hrs of vids I understand your teaching style better. It makes following along easier, almost like listening to an old friend explain stuff.
I've directed others at his videos, they usually say, "that guys rather annoying" I say just watch more videos, you'll get used to it and follow easier. in the same sense a teacher shouldn't be too perfect and easy, else the trainees will slack off and not pay attention ;)
throttle bottle They don’t get it I guess. The only thing I find annoying is his hockey team (well more disagree than annoyed), but I am a die hard Leaf fan. Lol. I’ve been working on a drinking game for watching his classes. Take a drink when he says “I apologize” or “variables”. The only problem might be you couldn’t follow along for after awhile. Lol.
I get such a kick out of it when he gets excited about certain technologies. I think that’s because I can so relate, I’m even older than he is so even the concept of learning on u-tube blows me away. Good for you for turning others on to this channel.
@throttle body. Thanks! And ouch lol
Yeah Man! Scanner I noticed that you are a great teacher I actually thought you were an instructor when Inforet started watching your channel , now I’m deep in to your channel , and I appreciate your long format style and there’s so many moments that are rad, bc you guys are cool , and keep it real - including hiccups, and the scratching head moments , it makes the discovery moments sweeter , and I love the banter …cheers guys keep on rockin , on 2nd view , 3rd I’m now really appreciating the multi faceted benefit of your endeavor . Right On !
Your kids must be proud of you. Excellent Father . Fun Father. Cool Father.
God Bless you guys.
Thanks, great video I had the exact same issue on my '95 Camry and after I bought a rebuilt alternator I discovered the intermittent issue was simply caused by worn brushes.
Here is an outline I fashioned after watching your video and a couple others.
.
To confirm that you have an alternator problem and not an external wiring or connection problem, do these simple checks before you grab a wrench:
With a charged battery start the car. Do the following voltage checks. Measure across the positive and negative posts and remember the value. Move the negative meter lead to the engine block. Make sure that the voltage is the same. Move the positive lead to the large post on the alternator. If you have a dead alternator then this voltage will be slightly less than the battery reading (small resistance in the wire). Turn the Car OFF and remove the three-wire plug from the alternator. Start the car (the bad battery indicator should be OFF) and carefully measure each of the three-wire connections in the removed plug. They all should have the 12V present.
If you have confirmed these points then it is safe to assume you have a bad alternator.
It is easier to remove the alternator before performing the following checks to determine your failure. remove the 3 nuts and the one screw holding the rear outer cover. At this point, you can easily find the test points to check the stator windings, the rotor windings, the brushes, slip-rings, and the diodes with a simple meter. You don't want to remove any screws before you make these checks. that way you can find the fault before you move connections around.
To check the rotor windings, the slip-ring connections, and the brushes: measure the resistance across the two screws holding the brush assembly in place. It should read less than 10 Ohms and stay there as you slowly spin the rotor. Then confirm that these screws are not shorted to the chassis ground (OL on the DMM).
To check the stator windings and the diodes: Measure the resistance between the 4 screws located around the edge. They all should be around 0 Ohms. In "diode Check" mode measure any screw to chassis ground and then reverse the leads. In one direction you will read something like 0.3 volts and in the other direction, it needs to read OL (overload or infinity Ohms).
Many times you will find the brushes are too warn and the first check showed OL instead of 10 Ohms. Why replace the alternator when a $30 part will work?
Made my day. How real was this? Took me about 4 hours as a rook--just as S. Danner noted-- for 1st time replace of alternator on 2006 Sentra, and then--start car and battery light comes on. No charging. Good grief!
Jake is lucky to have a wonderful Father Like You.
And I'm blessed to have a son like him! Thank you
Till he gets the bill anyways.
I bought Mr Danner’s book. I went to Votech 30 years ago for automotive, and unfortunately the instructors didn’t really know electronic’s themselves back then. Tough to teach others when you don’t know it yourself. Love the book. Love the videos. Great teacher. Going to get the premium when things slow down at work and I can hang out on the channel.
Thanks so much! IF you like the book you will LOVE the Premium channel. It is the book on steroids plus hundreds of exclusive case studies. I think I have about 400 videos on that channel now. I look forward to seeing you there.
Scanner Danner makes watching to the end more fun!
Loved this Paul. I have a 1999 Celica 7afe. You haven't been as lucky as me. They are great cars. Can't see ABS on your one. I will be carrying something to bang the alternator with. That is gold. It will get us home one day. Love from the UK
Great video and excellent details covered here! Thanks Paul and Sons.
The best presentation the topic anywhere / in any form (video / textbook / ChatGPT / etc … ) ! Thanks mate ! 👊🏼🔥
This video is gold bro. Uneducated people who have no idea whats going on will dislike . Theres so much to learn from this.
Excellent Video, I have a 1991 Celica, this really helped me come to the conclusion I need to change the alternator, the explanation of the circuit diagram was excellent, And so well made, Your video is still providing value, Kudos.
Glad it helped! Thank you
Great information. We tend to forget the proper way to look into this problem.
Paul, great video!!! Informative fun and entertaining.
Hay you are human after all.... Great channel, good dad, keep up the basic videos that are very relevant to many... Stay safe God bless from the UK
I am having issues with my 07 chevy. Battery is reading a little over 11v at idle. I narrowed it down to the alternator but decided watch a scanner danner video anyways. I was wondering on the way home how the hell does that volt meter in the cluster actually work. Sure enough my question was answered by Mr. Danner's video. This man is good at what he does. These electrical systems boggles my mind at times.
Excellent voltage drop demonstration Paul.
Good video Paul! I enjoyed the outtakes at the end it was fun and interesting to see a little more of the process that goes into your filming and even hearing discussions and corrections...I have the bad habit of saying OKAY all the time and starting the next monologue with that myself so it made me laugh to see you do it too!
great every day i learn new stuff from you you are the master
Another thorough diagnostic! Even showed the repair, you went full SMA on this video lol. Love the zip ties on the intake btw😂
outtakes were fun to watch, do more.
Thank you for this video scanner danner have an toyota corolla that was not driven for several years
Also tanks to your brother he does help a lot people also by posting his videos
Love this video every time I watch it.
Thanks Pol. I love your videos. Keep up.
each video encourages me more to follow you, I already order your book and soon I'll suscribe to your premium channel soon. Thanks a lot Paul!
Thanks so much Galo! You will not be disappointed
As a mechanic, a good indicator that your car has entered a phase of giving you a series of ongoing problems, is around the time the starter and alternator require replacing. Don't be surprised if the transmission fails soon, along with the radiator, AC compressor, water pump, hoses - it just goes on. Of course, there will always be exceptions to this rule, but I have tested over 30,000 cars and have driven around the globe 3 times when stringing all my roadtests together. But if you love your car as I do mine, then that is fine and show her your love :). Cheers from Rob of Australia
actually, just watching further into the clip, I have noticed that the radiator top tank is split and leaking coolant 7:46
:-), that was corrected when this video was released. Others caught it too. Thank you!
ScannerDanner not surprised, not much gets past the public 👌
Phenomenal comment, this guy wins the internet for today
@@michaelcahn6039 thank you, Michael :)
The only mistake made in this video was not having Jake actually change his own alternator...you would have instructed him to verify that the belt was fully on each pulley and you never would have had the loose belt. Fortunately, that mistake made for a great video! I sure appreciate the time and effort you put into your videos. I have learned so much on this channel, as well as the premium channel and can't thank you enough!
Best teacher best videos no question about it.
And you showed and taught your kids too that’s awesome I wish you were my dad
It's funny...I found you a week ago and have watched about ten of your vids so far. I knew you were from PA by your accent. I'm from Youngstown, OH.
Great content. I'm "electronically challenged" and need all the help I can get. Thank you so much.
Go Steelers! 😉
Thank you neighbor
This guy is a GENIUS!
Terrific videos cobba, very much enjoy
Not sure what will kill it first. The alternator, or the 3 ounces of gas left in the tank. LOL. Great video guys. Loved the outtakes. Classic stuff
You're an amazing teacher !
Nice thing about the older Celica's like my 1989, (not sure on this 1994) is that along with the battery light they also have a voltage gauge telling you the actual voltage (why they omitted the gauge on newer vehicles? Don't know) so when my alternator failed, not only the battery light came on, but I could see that the gauge was only showing around 12v whether I was at idle or at higher RPM's... Normal conditions showed the gauge at a little over 14v... I also tested the system with a volt meter to be certain. I didn't do any further testing cause it was an old alt. on a 2nd car which sat for long periods of time between starting/driving causing extra stress on the alt... I do keep the neg. cable disconnected but maybe during the winter months I should start bringing the battery inside to keep it from possibly freezing... Love the videos Paul. Thanks!
I just wanted to say that your voltage drop tests that you teach do not only apply to the automotive field! A piece of equipment at my work had a burnt out 480v 3 phase 30 HP electric motor. 5 grand later we got it rebuilt. I wired it back up & turned it on and it sounded weird! One thing you cant do with a 3 phase motor is run them while missing a phase, you will let the smoke out pretty quick. To make a long story short, it is also a variable speed motor that uses a hefty resistor bank to control the different speeds. I had 480v going to the motor and I checked the resistance on the resistor bank with a ohm meter that checked out good.
I used your voltage drop test on the resistor bank and my voltage dropped to 14 volts!
Had I not known how to do a voltage drop test I would have never found the problem and possibly fried another motor.
Thanks "Dan" Lol
Just don't use a T-pin lol
or a test light
God bless you Paul I really appreciate what you do
I loved my old G reg (1989) Celica GT4 .. Best car I ever had.
I loved the out takes
Old school is awesome 😎 I second that! 👍 great job guys
sam allen thank you for the kind words! Feedback like this and Guys like Paul "scannerdanner" motivate me to further my education staying up to date to help make the videos more educational for everyone! Thanks again
Will, I just shared your channel on Facebook and my channel page here. You deserve it. I hope you get some subs out of it. It is well earned on your part my friend. I wish you good providence in this crazy social media world. Have a blessed day!
sam allen I second that : )
ScannerDanner man I just seen the post on here and Facebook!!! my jaw is still on the floor to say the least 😁 had to do a double take lol im still speechless!! your one of the best in my eyes Paul this truly means a lot
PRICELESS memories for the boys! The fan belt...they WILL remember that moment every time they pop the hood! Dad's still the MAN though!
I wish you did hook a clamp meter on the alternator-battery post wire to show that the alternator is supplying its rated current which will show whether it’s doing its job. Excellent video as usual Paul.
Great video Paul.
Great info and family time.
Danner good work man, keep on doing great vids
Thank you so much for your useful video lesson
Very KNOWLEDGEABLE
Thanks 👍
Sir ScannerDanner
📷 man Thanks👌
From Nick Ayivor from London England UK 🇬🇧
Very helpful video. Thank you!
Nice one , Paul.
An amp clamp reading of the charging current from the alternator at idle, no load might have illustrated the extra stress a bad battery puts on the alternator, especially when compared to the current with a new battery. Thank you!
I'm disappointed in myself for not adding the amp clamp. smh
You never fail to impress and teach me something new... the radiator is cracked by the cap...
I appreciate your videos . I not a expert the alternator not charging I was thinking brushes . The noise probably the bearings and load .. years ago I remember a customer brought in there car to the dealer . Light was dimly shining on while running. I tested it with and it was charging. Finally I fixed it a bad diode and it allowed the light to shine yet still charged .. last weekend my alternator stopped working on my Road glide . I had a shorted stator . Tested it shorted to ground . I have just replaced the brush package before on alternator to help some one get by
Thanks paul danner great information thanks for shearing your knowledge your time thanks paul
Hey Paul, I'll bet the root of all these electric system problems is that big amplifier. By the size of the cable feeding it, I bet it draws a lot of amps when on. This large draw strains that little alternator to feed it and also keeps the battery in a constant low charge state. P.S. I found that stick also works on teenagers! Thanks.
Thanks again! Using a cheap voltmeter today on the very same Chrysler Neon 2005 i told you about days ago. At idle, my voltmeter oscillated around/between 13.98 to 14.02 V. But no lights or accessories were on at this stage. Though, I felt I should tighten my alternator belt slightly but the change was very little (14.02 Vat idle).
Thanks for everything Man!!!! I'm experiencing very same issues
I have a ‘92 Celica and I will use everything I learned here. I have a no start problem if I don’t start my car after more than a day. I have replaced my alternator twice and my battery is two years old.
Duralast didnt last :) Danner, just love how thorough you are.
Thank you Paul. Bless you brother.
Awesome video the most helpful for my situation, I got 96 celica and havin issues
Glad it helped!
Thank you for the great video!
Learned a lot. Thanks!
Good to see the fault and the fix.
Awesome video, thanks very much!
Thanks for the advice Cuba
significance about this video is that we saw the great scanner danner going nervous 😂
Great video and troubleshooting guide. Recently replaced my 2009 Corolla alternator. It was charging, but the alt pulley bearing went bad after 260k miles. There was a loud grinding sound and I thought my water pump was going bad again. Replaced with a remanufactured alt and after over 5k miles still going strong.
Soy Eldiego I get lifetime warranty with my parts house on anything I buy there. They know I only buy there unless they're closed and I need it right away or they don't have it. Replaced my sons old Toyota Camry alternator with a REMY brand 4 yrs ago and when it went bad I took it back in and they gave me another across the counter. Same thing with brakes and rotors for my 04 Chevy Tahoe.
I also buy parts there for others to fix their cars as well or if I have family or friends that need cars fixed.
is there a question here ? big fan scan dan keep up the good works,thanks for all you do.
Is there a question?
Paul, I believe the accepted spec for a lead-acid 12V battery at 100% charge is 12.8 volts and not 12.6. There are various charts out there that that show the numbers (no load voltage VS % of charge/capacity.
Great job. Love your videos. I wouldn’t leave the scan tool where you had it when you were working on the alt.
great video man! great points to talk about! and things overlooked! typical teenager fuel gauge low and fuel light on! unless the fuel gauge doesnt work!
Love all your videos man doing a great job , a test you didn’t do after fitting the alt is check the battery recharge current this would have showed the alt over working to try and charge the battery, if you put an amp clamp on the negative battery cable and run the engine the current flowing into the battery should drop below 10 amps within 5 mins with a good battery if it doesn’t it will cook the alt , try this on any vehicle and you will see initially an inrush current with the battery having had to turn the engine over but this charge rate will go down below 10 amps after 5 mins of engine run the better the battery the quicker it will settle down to a steady state of charge, try it on any vehicle you will see , keep up the good work cheers Del.
if the battery is sulfated (old wear out) it will take almost no current and the internal resistance will be high and the voltage will rising fast up to top voltage or have i got it wrong? The battery will not put any current to the car system when the car is running only if the generator is loaded over the specifications the battery will put current out to the car system or when the revs is low(ie when voltage drop under 12.6 volt) or did i got it wrong?
This is a cool line of convo…I’m literally on the edge of my seat , can’t wait , the more you learn the more there is to learn thanks all!!! Especially the Danner Crew
Good basic info Paul...as usual
Was that a compliment or a criticism lol