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2005 Buick Century Custom 3.1L Hesitation, Surge, Misfire, MIL Lamp on
Posted to GM Driveability on 4/21/2020 21 Replies

I'm running out of ideas, and have followed other posts from this site to try other things, so here goes. Car stores code P0300 random misfire. Looking at scan tool, I can see that #5 has a steady misfire under load only, and a few other cylinders will thr...

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  Related Documents & Media  2005 Buick Century Custom

 
Message Closed w/FIX

car Vehicle Data

2005 Buick Century Custom

VIN 2G4WS52J35
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / Misfire under load
EmissionsOBD-II Compliant
SymptomsHesitation, Surge, Misfire, MIL Lamp On
OccursUnder Load, on Accel

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

2005 Buick Century Custom

VIN 2G4WS52J35
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / Misfire under load
EmissionsOBD-II Compliant
SymptomsHesitation, Surge, Misfire, MIL Lamp On
OccursUnder Load, on Accel

Trouble Codes

P0300Multiple Misfire Detected