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1999 Buick Century Custom 3.1L Misfire, MIL Lamp on
Posted to GM Driveability on 3/7/2004 19 Replies

This car came in with the MIL on with cylinder misfire on cylinder #4. Plugs looked good but were original so we changed them along with the wires and swapped an ignition coil. No improvement. Took a static and running compression reading with cylinder #4 slig...

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  Related Documents & Media  1999 Buick Century Custom

 
Message Closed w/FIX

car Vehicle Data

1999 Buick Century Custom

VIN 2G4WS52M6X
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursAlways

Trouble Codes

P0304Cylinder 4 Misfire Detected
Message Closed w/FIX

car Vehicle Data

1999 Buick Century Custom

VIN 2G4WS52M6X
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursAlways

Trouble Codes

P0304Cylinder 4 Misfire Detected