will a crack in the intake manifold alow water in the cylender on 2002 Pontiac Grand Prix

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I have had an overheat issue. also water/steam comming out tailpipe. pulled intake manifold and found gasket was bad and manifold was cracked at center rear cylender. I dont see the conection between the water and the intake crack. is it more likely that the head gasket needs replacing as well or is it common for a bad intake manifold or gasket to creat this problem
(1) Answer
More likely a head gasket! Should have done more testing before tear down, can do a leak down test now, if equipped to do so.
Intake more likely to leak coolant into oil or externally. Must be the 3.8 I GUESS as it had more problems with the intake than the 3.1!