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20102 enclave misfire

  1. Buick Enclave
    I've had my 2012 Enclave for 2 years. Two months after we bought it, white/gray smoke that smelled like gas came from the exhaust. Lights came on and the engine lost power. The code indicated a specific misfire. Replaced that coil pack and plug. Issue solved. I did end up with a complete tune-up...