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#1
08-20-2008, 03:26 PM
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GMC Fuel Pressure drops
1998 GMC K2500 7.4L gas hog. Prolonged cranking during start. replaced fuel pump a year ago. Pressure test shows 55 PSI, (manual says 56 - 62), pressure declines to 40 PSI when pump is turned off. Is this the pressure regulator or normal?
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