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1989 Buick Century Custom 2.5L Poor Idle Quality
Posted to GM Driveability on 8/31/2004 10 Replies

This car has a very erratic idle. It will idle normal and then start raising until its over 2000 rpm. Then sometimes it comes down and surges up & down. and then goes high again. We have replaced the ECM, IAC, injector and MAP sensor. The throttle body has bee...

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  Related Documents & Media  1989 Buick Century Custom

 
Message Closed w/FIX

car Vehicle Data

1989 Buick Century Custom

VIN 1G4AH51R7K
Engine2.5 L / 4 cyl / GAS
Trans3-speed Automatic
DeliveryFI
SymptomsPoor Idle Quality
OccursHot
Message Closed w/FIX

car Vehicle Data

1989 Buick Century Custom

VIN 1G4AH51R7K
Engine2.5 L / 4 cyl / GAS
Trans3-speed Automatic
DeliveryFI
SymptomsPoor Idle Quality
OccursHot