fuel pressure regulator

Asked by 1998mike Jul 28, 2013 at 01:49 AM about the 1998 GMC Sierra 1500 K1500 SL 4WD Extended Cab LB

Question type: Maintenance & Repair

1998 GMC K1500 Sierra SL 4wd Truck will crank but not start I cant get any fuel fuel pump is good

2 Answers

migration_tommcmanis... answered 10 years ago

Fuel filter may be plugged, foward of tank on driver frame rail. Check fuel pressure w gauge set minimum 32 psi - 65psi is optimal under 40 may start stall or have runability issues (misfire). If you replaced pump w cheap after market pump,just because it shiny dont mean its any good the chinese clap cheap crap together cause its not going in their car

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migration_tommcmanis... answered 10 years ago

If pump runs and no pressure feed line from pump to output could be detached inside tank. Cycle key wait for pump to stop listen for dripping inside tank.

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