Intake Manifold Gasket?
 

Just found out today that I need to get mine replaced. I didnt know 4.3L had the problem with these like other GM cars and trucks, oh well.

I was just curious who has replaced theres. Post year and mileage.

Mine is a 99 and has 75k.

RE: Intake Manifold Gasket?
 

I replaced mine in my old '00 Bravada at 87k I think...

RE: Intake Manifold Gasket?
 

I replaced mine at 105,000 and its an 01!!! Felpro pinto gaskets baby is the way to go!!!

RE: Intake Manifold Gasket?
 

Actually, it appears GM has released updated aluminum gaskets, which I believe stops the problem of dex-cool eating holes in them...

I hope my new engine comes with the new gaskets, lol.

RE: Intake Manifold Gasket?
 

Come on there Dennis, we don't need to pull this into another Dexcool thread. We already have a thread for this discussion. It is known that there was a material incompatibility with the intake gaskets used on many v6 engines including the 4.3L. Dexcool does not eat the gasket. In some, the over molded o-ring material swells, cracking the plastic shell which results in a leak. I have seen this in both 100% dexcool engines and most recently in 100% green (EG) engines. But that is outside the bounds of what the OP was asking in this thread.

For anyone doing this repair or any work resulting in the replacement of the lower intake manifold gaskets, Fel-pro also has the updated metal framed gaskets which are available through PN MS98002T - shown HERE.

RE: Intake Manifold Gasket?
 

My bad, force of habit...

But GM did release improved gaskets as well...

So I guess it's just a question on pricing for the new style gaskets.

RE: Intake Manifold Gasket?
 

I just replaced mine on my 96 at 135k, but I think it was done once before

RE: Intake Manifold Gasket?
 

My mechanic told me they do have new gaskets that are supposed to fix the problem for good. Dont ask me why GM didnt do this from the start, but thats another dicussion.

Includeing parts and labor it will cost around $400.

RE: Intake Manifold Gasket?
 

Thats not bad. When mine when out I was quoted between $550-600. Thats when I decided to just do it myself.

RE: Intake Manifold Gasket?
 

Probably took awhile for them to think about the issue...

I hope my new engine comes with the new gaskets :D