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White smoke indicates coolant burning, usually a blown head gasket. Blue smoke indicates it is burning oil, usually piston rings. Black smoke is too much fuel and can be anything to a leaky injector to a dirty air filter.

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Q: 92 Acura Legend smoking from exhaust some at idle more so when acceleratig but no overheating occurring or coolant issues. AC works great. Please what could cause this?
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Your exhaust emits white smoke and drops of water even when engine warms up but no loss of coolant or overheating?

If there is no overheating or loss of coolant, most likely it is due to condensation in the exhaust system (pretty normal in cool or rainy weather).


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Several possibilities - from easiest to most expensive: Faulty or inoperable radiator cooling fan - causing overheating. Faulty thermostat - causing overheating. Water pump failure - causing overheating. Blown head gasket - allowing exhaust gasses to escape into the cooling system and expelling the coolant.


What causes overheating and erratic idling in a 1987 Honda civic?

Is white smoke coming out of the exhaust? Is the oil milky? If so then you could have a blown head gasket. You can also check by getting an exhaust gas checker at Autozone to see if there is exhaust in your coolant. HTH.


How do you know if the head gasket it blown?

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Can a faulty head gasket cause oil drops on garage floor?

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