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1991 Buick Skylark 3.3L Poor Idle Quality, Surge, Stall
Posted to GM Driveability on 7/20/2001 9 Replies

PLEASE READ THOROUGH!!!

Ok lets start from the begining. First time customer has a rough running problem. I know these motors are rough runners. Diagnosed the problem , module was not firing coil for cyl #1 & #4. Replaced module and it still running rough fou...

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car Vehicle Data

1991 Buick Skylark

VIN IG4NV54N4M
Engine3.3 L / 6 cyl / GAS
Trans3-speed Automatic
DeliveryFI
EmissionsOBD1
SymptomsPoor Idle Quality, Surge, Stall
OccursUnder Load, Idle
Message Closed

car Vehicle Data

1991 Buick Skylark

VIN IG4NV54N4M
Engine3.3 L / 6 cyl / GAS
Trans3-speed Automatic
DeliveryFI
EmissionsOBD1
SymptomsPoor Idle Quality, Surge, Stall
OccursUnder Load, Idle