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Question: When I picked up my parts to replace my timing belt and upper and lower intake manifold gaskets, I was given the GM #12378521 sealant.
What should I use It on?
The upper intake manifold to plenum gasket style looks like it could use some sealant. And the old one was cracked. Would coating this gasket with the GM sealant help it seal and prolong it's useful life?
TIA,
What should I use It on?
The upper intake manifold to plenum gasket style looks like it could use some sealant. And the old one was cracked. Would coating this gasket with the GM sealant help it seal and prolong it's useful life?
TIA,