2008 Silverado 1500 extended cab new fuel pump and new fuel pump module,still no fuel pressure
6 Answers
Have to verify if fuel pump energizes? If no power to pump maybe relay is problem. Most fuel pump systems have relay. Normally when we replace pumps we replace relay too.
Relay has been replaced it's the fuel drive module found in threat by the spare tire ,still no fuel pressure
I am thinking possible a plugged return fuel line or plugged fuel filter or supply line. If pump is not energizing then you need to test for good ground, power to pump before anything else.
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Did you ever find the problems? I have a 2007 2nd gen with no power to the pump. New pump and fuse- relay panel.