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Originally Posted by prepper
My son has a Grand Am, 96 model I think that the lower intake gasket leaks on and I know you all are aware of this problem with this V6 engine from GM where the gaskets deteriorate on the corners around the water ports and have to be replaced.
His was leaking on one end and is leaking on the other now and engine is missing a little, sometimes, and he's getting a little water in the oil. My main question is can the coolant get into the oil from the lower manifold gasket leaks or not? Some say yes, some say no. If it can't then he's obviously also got some sort of head\head gasket problem?
Anyone have any experience with the Thermagasket product with how it well it works on head gasket problems? I don't suppose it would do any good on the lower intake gasket leaks would it?
Thanks for any help,
Terry
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I'd agree with the intake leaking. If coolant is leaking into the cylinder(s) that will cause it to miss out.
I hav seen head gaskets get the same corners being eaten away and cause a leak.
A while back I had replaced my lower intake, but was still loosing coolant into the oil.
Changed them a few times before I pulled the heads, and the coolant jackets were deteriorated bad.
All the cylinders had great compression tho and held it for hours. What a nightmare that was
I bought a GT which had a leak, it leaked into the exhaust and out from under the TB.
So these engines do variey in where and why they leak.
That Thermagasket is BS !
If you hav a blown gasket it going to need replaced.
That stuff is like putting a bandaide on a leaking radiator hose, thiers going to be problems.
Good Luck and Welcome to AF !