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one large hose from bottom of radiator to side of water pump. other large hose from thermostat housing to top of radiator. one heater hose from water pump to heater core, I think this one has a Y in it if there is a rear heater other heater hose from heater core to somewhere on top the engine. If there is a rear heater, its return hose goes to a fitting on the radiator.
The heater core resembles a small radiator.
Start the truck. Turn on the heater. Hold both hoses in your hands. The first one to feel warm is the inlet.
Go to www.fueleconomy.gov
follow the upper radiator hose, that should lead you to it.
removing grill for a 2000 astrovan
Leaking radiator radiator hose head gasket water pump Heater core thermostat housing
The heater core is basically a small radiator located inside your car. If your "real" radiator isn't working quite as it should, then the heater can carry some of that load. Then if you turn the heater off the engine will run hot when it's only got the bad radiator left to cool it.
No. The problem is most likely your heater core. Ask a mechanic.
Should be on the front and left side of the flywheel housing.
UP UNDER THE PASSANGER SIDE GLONE BOX
BOTTOM