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1991 GMC G3500 Rally 5.7L Hesitation
Posted to GM Driveability on 10/25/2001 3 Replies

Hello everyone, This van has a noteable hesatation just off idle, I did a voltage sweep of TPS with Vantage which reveals normal smooth reading .70 idle to 4.50 WOT, Throttle body was very dirty, removed, cleaned, run MotorVac and no improvement Scoped Ignitio...

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  Related Documents & Media  1991 GMC G3500 Rally

 
Message Closed w/FIX

car Vehicle Data

1991 GMC G3500 Rally

VIN 1GTGG35K5M
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / TBI
SymptomsHesitation
OccursAlways
Message Closed w/FIX

car Vehicle Data

1991 GMC G3500 Rally

VIN 1GTGG35K5M
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / TBI
SymptomsHesitation
OccursAlways