Okay so a couple of weeks ago I was messing with some wiring on my truck and being stupid I accidently brushed some wires across some wires on my alternator, and ever since then I have a check engine light that comes on and my voltmeter is only showing that my system is only charging at about 11-12 volts. Other then that everything else is working exactly like it should. I put a new alternator in thinking that was the problem but, no dice still showing low charge. I am thinking that by brushing those wires across each other that I fried my voltage regulator in my ECU. Could it be anything else? I find it hard to believe that it is something terrible just because before I brushed the wires everything was working perfectly fine.

 

Check your fuses, I did the same thing a while ago. I just blew a fuse.


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I checked all the fuses and charged both batteries and still no charge on the system.

 

Start verifying grounds ... Or a diode in the alternator is toasted

 

The day this all happened I was messing with and cleaning my grounds, so I think the grounds should be good. I put a new alternator on 3 days ago and it still is causing me issues, so I'm thinking its not the alternator or grounds.

 

I know you said you checked the fuses but you did check the larger alternator fuse? The one that has two screws going thorough it?


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I think it's an 80 amp or 120 something like that


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Dieseldemon is on to something there ... i beleive you will find an issur in that line somewhere ...

 

Yes I did check the alternator fuse, I did not test it, but I looked at it, and it was not blown. I probably should test it though.

 

do an ohms test on it .. do a continuity test on alt ground ... its typically something easy ..

 

Yea something I agree


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Yea something like that is prolly something simple, I agree*


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