4.6L engine - I found a vacuum leak at the plenum (rubber gasket) between the intake manifold (right hand side) and the throttle body (Sits on top of the water pump housing).
My question is - what do I remove to get the new gasket in (GM part #12555840)? Throttle body or plastic intake manifold? I assume I will need additional gaskets know matter which way I go. Thanks for the help.
My question is - what do I remove to get the new gasket in (GM part #12555840)? Throttle body or plastic intake manifold? I assume I will need additional gaskets know matter which way I go. Thanks for the help.
Sep 9, 2009 at 1:45 PM