Chevy/GMC 6.2L and 6.5L Discussion of Chevy and GMC Trucks with 6.2L and 6.5L Diesel Engines

6.5 turbo

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Old 05-11-2015, 08:39 AM
smokestack_jet's Avatar
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Default 6.5 turbo

I am having a problem with my voltage my batteries are new and my alt is to every time I go to turn on my lights my voltage drops below 9 volts and when I turn them of it stays below 9 volts
 
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Old 05-18-2015, 05:02 PM
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Originally Posted by smokestack_jet
I am having a problem with my voltage my batteries are new and my alt is to every time I go to turn on my lights my voltage drops below 9 volts and when I turn them of it stays below 9 volts
Take apart and clean all grounds especially the one on the rear passenger side cylinder head inspect the battery cables and for a few dollars you can do a battery bolt mod and really make a difference.
 
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