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1999 Buick Park Avenue 3.8L Misfire
Posted to GM Driveability on 5/4/2009 64 Replies

hi guys, this buick is killing me. car came in with new tune up parts and a horrendous misfire under load. it idles great. fuel trims look good. i tried shorting cylinders under a load and all 6 seem to drop. the kicker is, i've got no codes and the misfire co...

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  Related Documents & Media  1999 Buick Park Avenue

 
Message Closed w/FIX

car Vehicle Data

1999 Buick Park Avenue

VIN 1G4CW52K4X
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursUnder Load
Message Closed w/FIX

car Vehicle Data

1999 Buick Park Avenue

VIN 1G4CW52K4X
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursUnder Load