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04-10-2010
I have a 1997 Pontiac grand prix gt 3.8...there is white smoke coming out of the tails pipe..i fixed the LIM and the UIM penilum(spelling), however same problem exist, there is no water in the oil, the engine did not get hot,please. advise what else could be the problem?Thank you.
04-10-2010
headgaskets maybe
04-10-2010
are your spidey senses tingling?
but Headgasket sounds about dead on.
04-10-2010
Is it the egr pipe that goes bad and has to be replaced or is it the plastic housing around it? Can someone tell me what parts I need besides gaskets to fix this problem. I do not believe it is the head gaskets but rather lack of knowledge that has prolonged my misery.
04-10-2010
How is the pressure in the coolant hose when you start it cold? I'm assuming the smoke smells sweetish?
04-11-2010
rings?
Last edited by gtpinsc; 04-11-2010 at 08:11 AM. Reason: realized it was n/a oops
Originally Posted by SuperSport
04-11-2010
When you did the lim gasket job, did you find a lot of coolant in the intake manifold? When the intake manifold melts around the EGR inlet it lets coolant pour into your intake manifold and go into the engine. I know somebody with a buick that took the time to rip everything apart and change the head gaskets only to find it was still burning coolant. Turned out to be the intake manifold had melted around the EGR inlet. If that is the problem go to rockauto.com and get the Dorman replacement upper intake manifold. It comes with all the gaskets to do the job and is only about $80. It is very common on the 3.8 to have this happen.
04-11-2010
OK, sounds like upper intake manifold, which was not replaced, the car ran fine after we changed LIM UIM gaskets got all H20 out then ran it, white smoke increase. I shut it down did not get hot hopefully the engine did not suffer internal damage. Oil is free of coolant. Coolant low as it has pored into the engine so now I will clear out the coolant again, clean plugs, replace intake manifold. thanks for info.
04-11-2010
UIM (upper intake manifold) ?
04-11-2010
Yes UIM, Is the dorman better than the cordone ?
04-14-2010
thanks for the help I replace pelum tube no more white smoke motor sounds good, now I need to figure out the vacuum system any pics on here that could help me out.
D
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