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ricky g
Active Member

36 Posts

Posted - 10/18/2013 :  07:49:04 AM  Show Profile  Visit ricky g's Homepage  Reply with Quote
Good morning , 2008 GMC 3500 6.6 DURAMAX DIESEL will not start , 12 volts at big terminal and when cranking to start with small wire unhooked at starter 12 volts at small wire , with small wire hooked to starter when cranking voltage drops to about 2 volts , starter just clicks { new starter } , but if I jump starter with screwdriver it spins normally , but bus will not start with key on , Thanks .

Farmridge
Senior Member

51 Posts

Posted - 10/18/2013 :  10:10:27 AM  Show Profile  Reply with Quote
Starter relay

If you can't handle the answer, don't ask the question
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Farmridge
Senior Member

51 Posts

Posted - 10/18/2013 :  10:18:58 AM  Show Profile  Reply with Quote
If it is like our 01's check in the under the hood fuse/relay box

If you can't handle the answer, don't ask the question
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ricky g
Active Member

36 Posts

Posted - 10/28/2013 :  06:29:56 AM  Show Profile  Visit ricky g's Homepage  Reply with Quote
found a bad ground from engine to frame which was causing no start
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