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2003 Buick Century 3.1L Misfire
Posted to GM Driveability on 5/16/2011 25 Replies

I have a regular customer with a car i have never seen. Came in for engine runs rough and check engine light. Monitored misfire data and notice cylinder #1 misfiring.

I swapped a wire and a plug and nothing changed. But when i took the plug out i noticed that...

25 Replies Received (View Replies)

  Related Documents & Media  2003 Buick Century

 
Message Closed w/FIX

car Vehicle Data

2003 Buick Century

VIN 2G4WS52J93
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursAlways

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

2003 Buick Century

VIN 2G4WS52J93
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursAlways

Trouble Codes

P0300Multiple Misfire Detected