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1990 GMC K2500 Sierra 5.0L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall
Posted to GM Driveability on 3/28/2001

S.O.S! MAY-DAY! Big headed tech about to crash and burn! This truck has certainly pulled me back into "reality". I have searched the archives, and tried just about every "trick" in the book, and now I'm all out of ideas.

It usually "hunts" for idle, sometimes...

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car Vehicle Data

1990 GMC K2500 Sierra

VIN 1GTFK24H1L
Engine5.0 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / TBI
SymptomsPoor Idle Quality, Hesitation, Surge, Cuts Out, Stall
OccursAlways, on Accel, Idle

Trouble Codes

44Lean Exhaust
Message Closed

car Vehicle Data

1990 GMC K2500 Sierra

VIN 1GTFK24H1L
Engine5.0 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / TBI
SymptomsPoor Idle Quality, Hesitation, Surge, Cuts Out, Stall
OccursAlways, on Accel, Idle

Trouble Codes

44Lean Exhaust