Question about 1999 GMC Sierra
Truck has no codes, fuel pressure is 60 psi when you turn key to on position, then kicks down to 56psi when pump kicks out,I pulled out the crank sensor then there is no firing at all. this truck did this before then ran for about three more days. I think the fuel pressure is ok but not sure. this truck has 90000 miles. this is a 1999 gmc suburban 5.7
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Posted on Jan 02, 2017
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