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1997 Buick LeSabre Limited 3.8L Poor Idle Quality, Misfire
Posted to GM Driveability on 1/16/2004 30 Replies

Misfires @ idle. Ran DTC= PO300= Misfire. Replaced plugs, wires, coils & ICM. Still has misfire @ 3,4 & 6. Ran DTC again= PO300. Runs fine @ higher RPM's. What can we eliminate based on results?

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  Related Documents & Media  1997 Buick LeSabre Limited

 
Message Closed w/Summary

car Vehicle Data

1997 Buick LeSabre Limited

VIN 1G4HR52K6V
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire
OccursIdle

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/Summary

car Vehicle Data

1997 Buick LeSabre Limited

VIN 1G4HR52K6V
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire
OccursIdle

Trouble Codes

P0300Multiple Misfire Detected