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Question Details Asked:Feb 28, 2011 - 12:49 PMStatus:Closed
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Voted Best Answer
try parking the van on a piece of cardbord to see if it's leaking on the ground, if not check the oil level if it's not high then it has to be dumping it in the exhaust thru a bad head or gasket
you need to determine where it is leaking at. Two ways to do this is to either get a radiator cap pressure tester and pressurize the system and see where the leak is coming from or get a dye that you add to the coolant and locate the leak with it. An air bubble or pocket will cause the heater to blow cold air.Did you check the less obvious places for leaks i.e. heater core?
The cooling system is a closed system and the only way liquid can escape is a hole in the line or in the water pump (which results with fluid on the ground or that head gasket (which causes fluid to escape into the exhault manifold and out the tail pipe.You said there was none in the oil so forget the piston rings. You could also do a pressure check of each cylinder to see if the head gasket is holding. As for the heater it should have a regulator somewhere in the small water hose line heading from the engine into the vehicle. there are two hoses inlet and outlet. let me know if you need further help.
sorry about that i did'nt notice that you put gaskets in ,did you hav the heads checked when you had them off???
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