V6 Failure of Lower Intake Manifold Gaskets

chuck0 · #1 12-03-2011, 04:49 PM

I'm trying to find out which Chev/Buick V6 engines don't have this gasket problem and starting in what year.
Does anyone have this info or can steer me to a site that does?

maxwedge · #2 12-04-2011, 09:27 AM

3.1, 3.4 from about 96 to end of the run, 3.8 from about 98 to 2005.

chuck0 · #3 12-05-2011, 08:54 AM

Thanks for your reply.
I'm surprised GM didn't eventually redesign the gaskets to fix the problem.

maxwedge · #4 12-05-2011, 12:36 PM

They did several times but it seems some updates still were ineffective. On the 3.8 the aluminum frame gaskets by Fel Pro did the job.

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