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What would cause a 1993 Saturn SC2 to blow white and or black smoke out of the exhaust?
Wiki User
∙ 17y ago
Black smoke would be unburned fuel: fuel injection problem. White smoke in the morning may be normal condensation. White smoke all the time would be blown head gasket (exhaust would smell sweet like burning coolant) Blue-white smoke would be oil burning...bad valve guides, piston rings, excessive blowby, etc. Black smoke = too much fuel in the mixture or not enough air. Check air filter or possibly a stuck injector. Blue or grey smoke = burning oil and indicates damage inside the engine or possibly a faulty vacuum modulator in a transmission that sucks transmission oil. White smoke = water vapor in the form of condensate. It's normal while the engine and/or the air is cold.
Wiki User
∙ 17y ago
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