More BS Alternator issues I cant figure out

Spent an hour with Zack on the phone last night....the man has tried everything. Remember he has 3 cars of his own to compare this one too and he can swap parts (battery / alternator) back and forth....which he has done. The issue is in the car...now to find it.
 
I'm just throwin this out there only becasue I've seen it be part of an electrical gremlin before. Does the car have any aftermarket stereo, amps etc wired in?
 
I have removed the battery cable from the alternator output post and voltage does not change. So that Theory of amperage draw can be thrown right out the window
 
martyo said:
Ity is okay, but you will be banned for 30 days. I hope to hear from you after that!
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From the desk of Mark's aka RubberCtyRauder's attorney:

You'll be hearing from my attorney and Dennis might stop buy to help with my car..................part out.LOL

now back to Zack's dilemma of the electrical gremlin
 
Im pondering making a lengthy harness that runs from my engine harness over to the other car's alternator.
 
Low mile, supercharged Marauder for sale, never raced, modified or abused, only needs new alternator.. $30k firm or bidding starts at $8.00.

:D
 
Ok, so if you hook a pair of jumper cables from a running car to this one, does the voltage go UP on the suspect car or go DOWN on the car you are jumping from?
 
You could even disconnect the alternator for this test and see if the car then registers 13.7+ volts from the car you car jumping from.
 
I think this might have already been mentioned but what about trying a NEW alternator just to see if it's not something internal (like a diode) that is not showing up as a problem...yet....
 
sflrainmaker01 said:
I think this might have already been mentioned but what about trying a NEW alternator just to see if it's not something internal (like a diode) that is not showing up as a problem...yet....
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I dunno, maybe because its $380?

And I took my known good one off my own car and it does the same thing.

Its NOT the alternator
 
TooManyFords said:
Ok, so if you hook a pair of jumper cables from a running car to this one, does the voltage go UP on the suspect car or go DOWN on the car you are jumping from?
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TooManyFords said:
You could even disconnect the alternator for this test and see if the car then registers 13.7+ volts from the car you car jumping from.
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That's actually brilliant.
However, it still wont tell me whats causing the problem.

The extension of the wiring harness is the only definitive way of knowing if the wiring from the alternator to the pcm is bad. (but is tested good)

WTF
 
Have you checked the resistance from the case of the alt to the frame? Should be close to 0 ohms. You probably have already, but it could be the "master" ground connection could be compromised somewhat and would be prohibiting voltage output of the alt. Also you can check current drain with everything off by measuring current with your meter by placing it inline with one of the battery terminals to see if there is something draining abnormally high. If there is current being drained, and if over 10A, you will probably have to put some resistors inline with your meter as most hand held multimeters only can take up to 10A or so (could fry it if there is no fuse protection in the meter).

Wags
 
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