Alternator not charging
#1
Alternator not charging
The car is a 92 rs was a 5.0 tbi then was 350 carb, motor went south now has a 350 tpi with holley hp efi. The charging system has worked fine till the tpi was just put in and hasn't worked since the first start-up. I have tried two alternators and they both just tested good. I have power at the red wire and cable and have power at the brown with key on. Dash gauge seems to work right is there a battery light on the dash also? Side notes the factory harness is still in the car but has had some of the un-needed wiring cut out maybe a relay has been removed by mistake? I did swap the big relays on driver-side but didn't help also checked fuses everything looked ok. At this point im at a total loss and have no idea on what else to try.
#2
Re: Alternator not charging
The car is a 92 rs was a 5.0 tbi then was 350 carb, motor went south now has a 350 tpi with holley hp efi. The charging system has worked fine till the tpi was just put in and hasn't worked since the first start-up. I have tried two alternators and they both just tested good. I have power at the red wire and cable and have power at the brown with key on. Dash gauge seems to work right is there a battery light on the dash also? Side notes the factory harness is still in the car but has had some of the un-needed wiring cut out maybe a relay has been removed by mistake? I did swap the big relays on driver-side but didn't help also checked fuses everything looked ok. At this point im at a total loss and have no idea on what else to try.
Also grounds are very good.
#3
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Car: 87 bird
Engine: enough to break stuff
Transmission: manual th400
Axle/Gears: 4.10
Re: Alternator not charging
alts have a "sense" wire alot of times run to a light on the dash, this needs 12v when on or it wont work
#4
Re: Alternator not charging
FIXED I should have said almost all the grounds are good but the main one I needed for the alternator. Long story short had my bracket powder coated and didn't let the ground pass threw. Fix was just run a ground wire from head to alternator.
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raymondandretti
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09-27-2015 06:43 PM