Thanks so much for the reply.
"There should be one heater hose that connects near the thermostat housing (topside of intake manifold) that carries hot coolant to the heater core inlet. The heater return hose would travel flrom the heater core outlet to the water pump."
^Yes, this is the way it is on my van. The heater core has not been bypassed. I had it replaced a while back and if I recall correctly - that's when temp problems started. Can air in the system cause this problem? That was probably a year ago.
Both hoses to and from the core get hot.
No AC in the van.
"There should be one heater hose that connects near the thermostat housing (topside of intake manifold) that carries hot coolant to the heater core inlet. The heater return hose would travel flrom the heater core outlet to the water pump."
^Yes, this is the way it is on my van. The heater core has not been bypassed. I had it replaced a while back and if I recall correctly - that's when temp problems started. Can air in the system cause this problem? That was probably a year ago.
Both hoses to and from the core get hot.
No AC in the van.
