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Re: smoke coming out of muffler
Bad head gasket when you stop the car pressure in the cooling chamber escape in the cylinder thrus the bad head gasket when you start before the prestone is burn the engine choke its no cheap to repair to bad good luck to you
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p0302 is a misfire in cylinder number 2 white smoke could be from coolant so if the head gasket is blown coolant can leak into the cylinder and cause the misfire are you loosing coolant that might be where its going
Sounds like you are getting coolant inside the cumbustion chambers in the engine. possible blown head gasket, or cracked head. get it checked by a pro. this could be very costly, but messing with it could cause more damage, such as bent connecting rods from trying to compress liquid coolant. good luck.
It's normal for a thin white smoke to come out of the exhaust at initial start up. This is caused from moisture built up in the exhaust burning off. However if there is a continuous flow of thick white smoke it could be a blown head gasket causing coolant to burn.
One potential cause is too much gas. It may be running "rich". Your car
may also be burning a little oil. White smoke is water or antifreeze. If you are loosing coolant from the
radiator, it's probably a blown head gasket. If not, it is just
condensation in the exhaust pipe that is evaporating as the pipes heat
up. If the car is running too rich, the unburned gas will cause black
smoke and burning oil smoke will be blue.
It sounds normal white smoke comes from moisture in the air as it's burned and the air temprature is different. it creates steam they gray smoke is a little harder to decide what it is, normally gray smoke is related to oil burning and black is over fuel, depending on how many miles it has on it it could have bad valve guide seals but would not worry about it.