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1991 Buick Century Custom 2.5L Poor Idle Quality
Posted to GM Driveability on 4/26/2000

Trying to help local shop, car starts normally, after 3-4 minutes of run time idle speed slowly increases to 2000 rpm. It has set a fault 35 in the past, but has none now. They have gone thru all harnesses and connectors with no problem found and replaced just...

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car Vehicle Data

1991 Buick Century Custom

VIN 1G4AH54R8M
Engine2.5 L / 4 cyl / GAS
Trans3-speed Automatic
DeliveryFI / TBI
EmissionsUS FED
SymptomsPoor Idle Quality
OccursHot, Idle, Intermittently
Misc.4 Dr.
Message Closed

car Vehicle Data

1991 Buick Century Custom

VIN 1G4AH54R8M
Engine2.5 L / 4 cyl / GAS
Trans3-speed Automatic
DeliveryFI / TBI
EmissionsUS FED
SymptomsPoor Idle Quality
OccursHot, Idle, Intermittently
Misc.4 Dr.