A great site to get information on the uses of an intake manifold is http://www.1aauto.com/1A/IntakeManifolds, Also going to an auto garage is also a great resource to find out additional information.
diferential pressure sensor intake manifold plausibility
Between the intake manifold and the cylinder head.
between the head and intake manifold
remove intake manifold.
Under the intake manifold. where is the intake manifold!
the intake manifold is what takes air coming from the intake and directs it to each intake valve in each cylinder
Yes, you must install a 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.
YES
The intake manifold is where the air and fuel mix and enter the engine. The exhaust manifold is where unspent gas and air exit the engine. In other words the intake manifold is where the engine breathes in and the exhaust manifold is how the engine exhales out.
Try Retightening intake manifold bolts first...............
There is 2 of them. and they are under the intake manifold. You will have to remove the intake manifold to get to them.