I have a 1994 gmc z71 with the 5.7 engine. When the truck gets to normal operating temp it loads up and stalls at low rpm's. The only way it will restart is holding the gas pedal to the floor.

5

Asked by Aug 20, 2015 at 09:17 PM about the 1994 GMC Sierra 1500 K1500 SLE 4WD Extended Cab Stepside SB

Question type: Maintenance & Repair

I have replaced both injectors, fuel filter and
complete tune up including the coil and the
distributor pick up. Any help would be
great.

1 Answer

83,705

Check fuel pump pressure, should have 20 or more lbs. and or the O2 censure may be bad.

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