This is the step by step procedure to determine the cause of a failed charging system as well as the procedure to replace the alternator. Thanks for watching…
DIY Alternator Diagnosis & Replacement
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- Tags:
Alternator, diagnosis, Replacement
- Categories: Chevrolet
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thanks for doin this, makes it alot easier
Cool vid, helps a lot. Quick question. Where does the pig tail connection go to? It runs from the alternator to what?
My car just started having power issues, losing power as I am driving. While sitting in it, with it running I kept hearing a clicking sound. When I looked under the hood, I could see that while the alt. was working, the inner circle part on the front kept stopping, then going again each time it stopped you could actually hear it click. What could cause that? I have a 1992 Camaro.
tx for this vid. my 2000 Sonoma just did that this morning .
Amazing! I search all over the web for the proper way to install my 2000 Chevy S10 Alternator. After I saw this video, it all made sense. I ran back inside to watch it three or four more times, just to be sure and damned if every step was spot on! Thank you so much for posting his. I got the alternator in and now I have to put everything that was blocking it back in place, but I got this! Thanks to you!
Thanks so much! I thought it was going to be difficult removing the alternator from my 1995 S10 since it was buried under so much stuff. Your video made it so much easier. The only thing that was different on the S10 was the front bolt was a 10mm and the last top bolt was a 13mm. I also had to remove the coolant reservoir to actually pull the alternator out of the truck. Thanks again!
It would be similar. I can’t tell you for certain if it is exact.
quick qeustion..i have 02 s10 2.2 liter..is your instruction apply to this? thx!
made in usa thats why youre replacing it XD…..
ROCK SOLID video, thumbs up
Awsome. Simple and explained well. Thank you.
Most newer vehicles have an internal voltage regulator. If yours is an older vehicle with external regulator, you should test alternator & regulator to see which is bad. You may only need a regulator.
I am replacing the alternator on my Chevy, should I just go ahead and replace the regulator at the same time?
On big jobs, I have been known to use an old muffin pan with magnets in the bottom of each section. That way I can separate the bolts by location. You can also poke holes in cardboard & label each bolt as you push it in a hole. Otherwise record it on video & play it back if you get confused. When you’re finished editing, post it on YouTube. Anybody can look like they know what they are doing.
how do you remember to put all the botls back togetther in the right place?
Good question. I have an old Snap-On MT2500 scanner that I bought used quite a few years ago for $1000. It may be worth $200-$300 now. Snap-On doesn’t sell updates for it anymore. I also have an Autel AutoLink OBDII Scanner that doesn’t do ABS, SRS,etc. I think it was about $80 from Matco. Otherwise, I haven’t been shopping for scanners & couldn’t give an educated answer.
Dear Mr Roadrage,
For those of us do it yourselfers who would like to know, What would be the best value Scan Tool which can do most cars and have the most function including Air bags and ABS priced over $1000. the current brands ive been looking at are Snapon, OTC, and AutoBoss. Thank you!
Sometimes a thin 13mm wrench is needed to keep the stud from turning while removing the nut with another 13mm. If all else fails, cut the wire & crimp a new eyelet on it.
I’m trying to replace my alternator and i got everything off except the wire on the back of the alternator at 1:13 for some reason it just doesn’t want to come off
dude…hands down one of the better tutorials on this site…concise and clean thanks for the contribution
Good vid! very straight forward, no surprises at all when i followed your instructions to replace my alternator.
I actually wanted to show me testing the voltage. I had diagnosed the problem at work. Then when I got home to make the video & do the repair, I realized that my multimeter was still at work. I have a similar video replacing the alternator on a Honda. It gives a little better info on diagnosing the charging system. Thanks for the comment! I am always open to constructive criticism & I’m still learning this whole video production thing.
I like your videos. Good there is no music or background noise so I can hear you clearly. Would be nice to include how you tested for voltage at the battery and the alternator and tested the wire connected to the alternator. Maybe don’t assume anything of the viewer so we can see how diagnosis works.
you make some great videos and make it look so easy! keepem commin man
very cool good job keep it up thank’s
First off, thanks for watching & commenting. As soon as I get a vehicle that needs cooling system diagnosis, I’ll make you a video on it. My truck (the one in this video) needs a little work. I have a new radiator waiting on me to install it. When I get some free time, I’ll fire up the camera & see what I can do.
very cool vid when are you ever going to talk about cooling systems n how it all works and some diagnostic on trouble shooting it