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1992 GMC C1500 Sierra 5.7L Hesitation, Cuts out, Stall
Posted to GM Driveability on 6/29/2009 19 Replies

Thanks in adv ance for all your help. After used engine installation,this truck will stall at idle. Fuel pressure at idle is 15 psi, LTFT 110, STFT128. After fuel return line is pinched truck runs great and fuel pressure jumps to 20 psi. Map sensor readings at...

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Message Closed w/FIX

car Vehicle Data

1992 GMC C1500 Sierra

VIN 1GTEC14K1N
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / tbi
Emissionsobd1
SymptomsHesitation, Cuts Out, Stall
OccursHot, Idle
Message Closed w/FIX

car Vehicle Data

1992 GMC C1500 Sierra

VIN 1GTEC14K1N
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / tbi
Emissionsobd1
SymptomsHesitation, Cuts Out, Stall
OccursHot, Idle