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1996 Cadillac DeVille 4.6L Misfire, MIL Lamp on, Misfires at cold sta
Posted to GM Driveability on 5/6/2004 11 Replies

This is my wife's vehicle and we have had it since it was new. It has a long history of loosing coolant. It is believed all leaks have been repaired.The engine has never heated above normal. The problem is misfiring at cold start up. This began several months ...

Summary posted 6/1/2004

11 Replies Received (View Replies)

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car Vehicle Data

1996 Cadillac DeVille

Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp on, Misfires at Cold Sta

Trouble Codes

P0300Multiple Misfire Detected