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1994 GMC K1500 Sierra SL 4.3L Hesitation, Hesitation, Hesitation
Posted to GM Driveability on 3/27/2025 22 Replies

This truck come from another shop with no power and Hesitation under load they replace fuel injectors with no luck. I set the ignition timing to 0 degrees with the timing connector unplug and that make it wors, so I have to advance timing 17 degrees to...

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car Vehicle Data

1994 GMC K1500 Sierra SL

VIN 1GTEK14ZXR
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / TBI
EmissionsOBD1
SymptomsHesitation, Hesitation, Hesitation
OccursUnder Load
Open Help Request

car Vehicle Data

1994 GMC K1500 Sierra SL

VIN 1GTEK14ZXR
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / TBI
EmissionsOBD1
SymptomsHesitation, Hesitation, Hesitation
OccursUnder Load