2008 Chevrolet Avalanche Hard Start Cold Fuel Pressure Reeds Key On Engine Off

2008 CHEVROLET AVALANCHE
160,000 MILES
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hard to start cold, fuel pressure reeds key on engine off 85 psi when starts it reeds 62 psi en after a few seconds meter reeds 43 psi idling. could it be that the pressure of 85 psi is to hi for cold start? gm book says key on engine off 50-60 psi is this the problem of hard starting cold? got a lot of black/blue smoke when it fires up and smells like rich fuel consumpion.

greets from Belgium .
Apr 4, 2013 at 4:47 AM
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HMAC300
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check your fuel pressure regulator shold only be in the 50-60 psi range
Apr 4, 2013 at 6:15 AM
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