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1993 GMC G2500 Rally 5.0L Poor Fuel Economy
Posted to GM Driveability on 3/13/1998

Truck has no power in after initial acceleration, oxygen, fuel pressure, map, injectors sensors and grounds ok, checked timing, initial timing ok, e.s.t. line ok, but under acceleration, timing retards from 28 degrees to 0 degrees, checked knock sensor,ok. How...

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car Vehicle Data

1993 GMC G2500 Rally

VIN 2GTEG25H5P
Engine5.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / EFI
SymptomsPoor Fuel Economy
OccursOn Accel, Cruise
Misc.Prom6215
Message Closed

car Vehicle Data

1993 GMC G2500 Rally

VIN 2GTEG25H5P
Engine5.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / EFI
SymptomsPoor Fuel Economy
OccursOn Accel, Cruise
Misc.Prom6215