Quote:
Originally Posted by longassname
huh? Isn't the only thing that could stop coolant from circulating through the heater core the water pump(besides disconnecting it)? I believe the heater lines connect directly to the water pump so even if the thermostat is closed the coolant circulates through the heater core.
Though I guess the mix door on his ac system could be coincidentally broken and not that just disconnecting the outlet hose from the engine and watching for it to pump is a bad idea.
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Sorry for the confusion but I was agreeing with you that there is no valve. If the heater core is full of air, your are not going to get any heat out of it through... I had this problem with my old 94 when the HG was bad.
Tom