The manifold gasket is the same as the plenum gasket. The manifold gasket is a barrier between the manifold and the engine block.
yes it is
Valve cover gasket holds oil from the valves from leaking off the top of the head . Head gasket is lower and holds cylinder pressure between the cylinder head and the engine block.
Upper intake manifold plenum leak/crack most likely. If its blowing out coolant then you probably have a bad head gasket.
It is on the underside of the intake manifold
very carefully
ummm....junk it? Probably a shot head gasket. You cab probably DIY at home if you have the tools and a manual.
My husband has the same truck and it only has 90,000 miles on it and he blew a head gasket yesterday. Do you have any suggestions?
My first gues would be a blown head gasket, the same thing happend to my s-10 when the head gasket gave out.
Which plenum-intake or. . . .
White smoke is coolant in the cylinders. Died and won't restart cause the spark plugs are shorted with coolant. If you keep trying to start it without fixing it you could bend a rod! Most likely it is a failed intake manifold gasket or intake plenum gasket or the intake plenum itself. Don't drive the car cause if it is the plenum leaking coolant into the engine it can fill a cylinder with coolant and do major damage when you try to start it. No way to know for sure which of the three it is without pulling the plenum. If you're pulling that you might as well change the intake manifold gasket too. Could be a bad head gasket
Not sure what engine you are working on but if you are using a new gasket there is no need for silicone unless the directions included with the new gasket require it.