ruedger455

So i just unplugged the alternator which is brand new last week and started the locking and unlocking of the tc and plugged it bacl in and now its fine.

Yea thats true, i should have bought a 12 valve lol

Hell this is a new truck to me ive drove a 77 gmc for the past 10 years.

Yea im so frustrated with this. It complete quit doing it through the winter then on the first warm day it started again.

Well im bring this thread back up. Cause ive changed my alternator 7 times since this issue. Each time i do it the truck runs great no issues then after exactly a week my issue comes right back. What could be causing my alternators to fail prematurely like this and cause this a/c noise. Its very frustrating, and 4 of these alternators were brand new not refurbs. Im also getting a low voltage apps code. Could my issue be my apps and when im hooking my batteries back up and resetting my apps its fixing it temporarily?

Lol thats what im hoping. I try explaining to people that the alternator is garbage and they say ive never heard of this withany vehicle in my life. And i tell them to talk to a 24valve owner lol

Whats making these alternators last for a week or 2 then the a/c voltagw issue starts again. Is there something wrong in the trucks wiring that couldbe causing this? Or is it just the alternators are doo doo?

I agree lol

Where can i get a good non reman alternator? Im done with these autozone scrap pile alternators. Its happening all over again.

Lol yea definitely lol Its was the fuse lol

The fuse was blown so i got a new one and am gonna try it. Its a 140 amp fuse just for future reference lol

What if i accidentally hit the alternator power cable on a ground? Would that have burned up something or popped the alternator fuse?

Yea my electrical knowledge is pretty dull. How do i check to see if my grid heater is staying on? Should my alternator have a regulator in it?

I really could use some help on this, could one of my batteries be bad?

Checked codes got a 1682 now.

https://youtu.be/FLzKYNi1FqA I am frustrated to the max with this. I havent had the truck for even 2 weeks.

Ok update: i went and took the old alternator back to autozone told them whats up and they tested said its fine which its not. Then proceeded to tell me its not charging cause my external regulator is bad which is my pcm right? Got the new alternator in and it ran then when i.get driving for a few minutes its almost like the alternator shuts down and stops charging. If i shut down the truck and start it it works again for a minute or 2 then the volt gauge drops off and my check gauge light comes on i have a video of it. And if i let it just idle, it doesnt do it. Only when i drive it ill put the.link on here when its uploaded.

When i hooked up my alternator back up it ran fine and then my check gauges light came on and my voltage gauge was on 8 like the truck is off. I assume thats because the alternator is failing and when i turn on the key without starting the gauge reads normal but when i start the truck it drops because then its not reading off the batteries its reading the alternator volts correct?

Well unhooked the alternator today and inhate to admit it but its ran fine without it hooked up. I guess im gonna be headed to that alternator shop.

I havent had a chance it was raining reallt bad here so i plan on it tomorrow.

I noticed as soon as my engine temps got up to 190 it no longer did it. So im assuming once my transmission temps rise it stops.

I drove my truck this morning to work and it didnt do it. Could i have a bad connection somewhere?

Well you convinced me lol ill pass on that hell hole.

Thats very intersting sometimes my abs light flickers when i put on the brakes. Donyou think the green machine alternators are better quality than say a bosch or an ac delco?

Alroght cool thanks again i appreciate it. This whole deal is very frustrating.