More BS Alternator issues I cant figure out

Wow man sorry to hear this, hope you get it figured out soon.
Anything that I would have recommended, you have already tried. I'll run it by some of the the old timers I know, they are usually good for a couple remedies.
 
One other thing I can think of, but you probably have already checked, is the connection on the starter. I have seen this on one other car years ago that had the same symptoms as yours. Alt checked fine, bat checked fine, still would only output ~12v. Redid the connection for starter and everything was working.

Wags
 
Wags said:
One other thing I can think of, but you probably have already checked, is the connection on the starter. I have seen this on one other car years ago that had the same symptoms as yours. Alt checked fine, bat checked fine, still would only output ~12v. Redid the connection for starter and everything was working.

Wags
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Thats an odd one, but this car has sat outside since new.

I can disconnect it from the fuse box and see what happens.
 
The beauty of finding the problem (and it not being my fault)
Is I can charge for all these hours!!!
 
Well, the car is gone.
I made the harness from one car to the other and that didn't work. The alternator on the eaton car didn't even turn on.
Then I hooked the jumper cables up and was totally confused with the results:
On my cars side it read 13.6
On his cars side it read 12.5

Seriously wtf
 
Zack said:
Well, the car is gone.
I made the harness from one car to the other and that didn't work. The alternator on the eaton car didn't even turn on.
Then I hooked the jumper cables up and was totally confused with the results:
On my cars side it read 13.6
On his cars side it read 12.5

Seriously wtf
Click to expand...


You surrendered?
 
Electronic gremlins are the hardest thing to figure out. We just took a GM buyback in on a 2014 Impala that had them that they couldn't figure out. Now it's a 10,000 mile, 3500 pound paper weight.
 
What fuel pump you install for the eaton swap? Boost a pump? Intercooler pump? These are pretty much the big voltage draw items. Possible any of these are defective?
 
Blackened300a said:
What fuel pump you install for the eaton swap? Boost a pump? Intercooler pump? These are pretty much the big voltage draw items. Possible any of these are defective?
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The problems were happening before the fuel pump install. (Did that after the car was running)

I disconnected the IC pump and everything else....to no avail
 
If if didn't drag the known good car down to 12.5, I would say it was grounding issues. somewhere on that car are bad ground straps. This causes excessive current and blows things out like PCMs, alternators etc.
 
How was the rear ground strap homie? Only ask because my car is super clean and has always been garage kept and it was pretty green last year.


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