This is a job where you should get a HAYNES MANUAL ($18.00) when you have not done this before. It will go step by step with pictures. You can get into trouble when you pull the distributor otherwise.
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there is no upper intake gasket, only a front and rear
take it to a mechanic
Remove the intake manifold retaining bolts from your 1996 Chevy Astro Van. Remove the manifold gasket and clean the surface. Reverse the process to install the new intake manifold gasket.
Assuming this is a 4.3L engine, the upper intake manifold gasket would be between the upper intake manifold and the lower intake manifold.
is their a web site, that will provide me with the a print out for the intstalling of a intake manifold gasket for a 2003 chevy aenture.
there is no lower intake gasket, only a front and rear gasket
You either need a head gasket or intake gasket.
It should take about an hour to change the intake manifold gasket. This part can be replaced by taking off the intake manifold cover, cleaning the old gasket off and sealing a new gasket in the space and tightening the bolts. When other things are in the way, like the alternator, it will take longer.
It is between the upper and lower intake manifold. The gasket is an o-ring type.
They (2ea.)are in the intake. The intake manifold will need to be removed to get to them. The wire harness and intake manifold gasket should both be replaced when reassembling.
a bad head gasket or intake manifold gasket.