Heater Hose: Service and Repair

Engine Heater Hose Assembly:

REPLACEMENT

The heater core can be damaged near the tube attachment seams if force is applied on them. If the heater hoses do not come off, cut the hoses forward of the core tubes. Cut the hose on core tubes to remove.


IMPORTANT: Draw hoses tight to prevent sagging or rubbing against other components. Route hoses through all clamps as installed originally.


HEATER HOSES ROUTING

Heater hoses are routed from the thermostat housing or inlet manifold and water pump (radiator on some automatic transmission vehicles) to the core inlet and outlet pipes. Hoses are attached at each end with screw-type clamps. Refer to accompanying figure.