Yes. Antifreeze is actually pumped through the intake manifold. If the gasket is bad it is possible that it leaks out
No there is not a water jacket in an intake manifold they are around the cylinder walls in the engine block.
replace the water heater inlet pipe on the intake manifold on a 3800
A bad intake manifold or manifold gasket can cause water to leak into the oil. Some newer cars have plastic manifolds and they will crack from age.
Not unless you have a water cooled intake manifold, which is very rare on a car.
diferential pressure sensor intake manifold plausibility
It is a small 'L' shaped hose that goes from the side if the water manifold to the bottom of the carburetor intake manifold. I believe it is part of the water supply to the carburetor manifold that heats it.
intake manifold gasket if it is coolant in the oil
coolant by pass hose needs repaced under intake manifold to water 1996 Lincoln town car
Between the intake manifold and the cylinder head.
between the head and intake manifold
remove intake manifold.