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Old Jun 24, 2009 | 06:45 PM
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white smoke

hi guys!
1999 expy, 145k. has white smoke coming from exhaust, engine run grate,
help!!
 
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Old Jun 24, 2009 | 09:35 PM
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pull the oil fill cap off and check the underside of it. If it's got chocolate milk looking goo on it, you blew the headgasket.

Are you losing coolant by chance?
 
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Old Jun 25, 2009 | 10:48 AM
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The head gasket is blown.
 
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Old Jun 25, 2009 | 06:22 PM
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white smoke

Originally Posted by markpl
hi guys!
1999 expy, 145k. has white smoke coming from exhaust, engine run grate,
help!!
some upgrade: after changing all plugs, clean up carburator(last week),
changing fuel filter, engine start with no problems, except white smoke,
car was sitting for 2 weeks, after all work drive for 30 minutes(white smoke),
today start engine smoke gone drive like champ, oil look normal, coolant level OK for
now, engine work great. Any idea!???
 
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Old Jun 25, 2009 | 08:49 PM
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you might have a valve seal that is leaking, and when the truck sits for long periods of time, it allows oil to accumulate in the cylinder. When you changed the oil, it might have dis=lodged whatever caught in the seal.

Keep an eye on it for a couple weeks.

sounds like you are lucky.
 
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Old Jun 30, 2009 | 07:39 PM
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Originally Posted by bnovak
you might have a valve seal that is leaking, and when the truck sits for long periods of time, it allows oil to accumulate in the cylinder. When you changed the oil, it might have dis=lodged whatever caught in the seal.

Keep an eye on it for a couple weeks.

sounds like you are lucky.
I agree, white smoke usually valve seal.
 
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Old Jul 1, 2009 | 09:40 AM
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When oil burns it creates blue smoke not white. White smoke is essentially steam and is a result of heated water. So unless he is misdiagnosing the color of the smoke, it is coolant that is getting into a cylinder and not oil.
 
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Old Jul 1, 2009 | 09:46 AM
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some more info
driving for a week at short distance, and no white or blue smoke come out,
but was definitly white smoke from the start.
 
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Old Jul 1, 2009 | 09:56 AM
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I'm jealous. I've always wanted a vehicle that heals itself.
 
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