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1991 GMC G2500 Rally 5.7L Poor Idle Quality, Surge, Stall
Posted to GM Driveability on 5/7/2004 5 Replies

Hello,This van will not start cold unless the throttle is even slightly opened,after 30 sec. it will idle fine, then when it reaches 180o the idle will start to surge and eventually stall I have check for vacumm leaks,replaced IAC and vehicle has had a remaned...

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car Vehicle Data

1991 GMC G2500 Rally

VIN 2GKEG25K7M
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / TBI
SymptomsPoor Idle Quality, Surge, Stall
OccursHot, on Decel, Idle
Message Closed

car Vehicle Data

1991 GMC G2500 Rally

VIN 2GKEG25K7M
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / TBI
SymptomsPoor Idle Quality, Surge, Stall
OccursHot, on Decel, Idle