07-29-2018 07:07 PM
The only other place that I can think of is a crack in the exhaust manifold. The jacket water flows through the exhaust manifold and it would have less pressure that a cracked cylinder head or a liner counterbore crack. And that would also account for the sudden pressurization of the cooling system. And exhaust might show up as combustion if it came from the exhaust manifold.
07-29-2018 06:52 PM
07-29-2018 05:31 PM
The G379TA did not have the option for an air-to-air aftercooler. If your engine does have an ataac, I don't know of a connection between the engine jacket water and the ataac. It could be that a connection has been made in error in the external piping. Did this problem just start after a repair or has it been slowly occurring?
07-29-2018 04:55 PM