What are the symptoms of a faulty exhaust valve in the Buick Excelle?
1 Answers
The following are the symptoms of a damaged exhaust valve in the Buick Excelle: 1. Exhaust: Sudden and extensive smoke from the exhaust (similar to that from a fire extinguisher), white smoke at idle, and blue smoke during rapid acceleration or heavy throttle. This is caused by engine oil entering the exhaust pipe. 2. Odor: A strong burning rubber smell, different from the normal smell of burning engine oil. This is caused by the catalytic converter. 3. Engine shaking: At idle, pulling out the engine oil dipstick does not cause vibration. Opening the engine oil cap should normally create suction, and the dashboard warning light will illuminate.