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Old 09-19-2008, 06:17 PM
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Have a vortec supercharged ls1 that is smoking both from exhaust and around motor, tried to rerought pvc system to catch can but things are worse. The smoke is white. Could this be a valve or ring? any imput would be greatly appreciated.
Old 09-19-2008, 06:29 PM
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White is normally water being burned, usually from a bad head gasket. Bob
Old 09-19-2008, 07:06 PM
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also running engine codes p1637 generator L Terminal ciruit and po300 rapid misfires any input on these. Does anybody have a removal and installation link for the head gasket?
Old 09-19-2008, 07:11 PM
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dont run the car...you risk effin up the bearings...did u drive around like this?
Old 09-20-2008, 08:33 AM
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well how do you fix it?
Old 09-20-2008, 09:34 AM
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+1 on a possible headgasket issue. only way to fix it is to pull the head(s).
Old 09-20-2008, 09:41 AM
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As Bob and others have said, it is 99.99994% likely you have a blown head gaskets. I would avoid driving it until the problem can be diagnosed and fixed.
Old 09-20-2008, 09:55 AM
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Lightbulb maybe..

do a bit of investigating??
Compression test?
Plug read?
Cooling system pressure test?
Coolant loss?
As others have mentioned, keep driving it, if it is a gasket, and you can count on a rebuild, when the antifreeze ****** up your brgs, etc...
Old 09-20-2008, 06:33 PM
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working on pulling the heads, noticed some oil in the valve covers, everything looks normal so far, should there be any oil in the valves and valve cover. Should I do a valve job while I got the heads off and a pvc conversion to the ls6 valley cover. Just looking for some insight to fixing this problem. What do you guys think of the patriot stage II heads?
Old 09-20-2008, 10:35 PM
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I thought when you blow a headgasket the smoke actually looks like steam and you have a coolant smell. Also, I have always thought you would have coolant in your oil.

I remember having white smoke coming from my exhaust from my supra. Replaced the valve seats and the problem went away. I see people pre oil restrictors blowing white smoke out of the exhaust at idle.
Old 09-24-2008, 05:05 AM
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Originally Posted by VINCE
I thought when you blow a headgasket the smoke actually looks like steam and you have a coolant smell. Also, I have always thought you would have coolant in your oil.

I remember having white smoke coming from my exhaust from my supra. Replaced the valve seats and the problem went away. I see people pre oil restrictors blowing white smoke out of the exhaust at idle.
White is normally steam, and you don't always see coolant in the oil. There is a different in color between steam and oil, the oil will be a bluish color. Bob



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