GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Oldsmobile
🢒
2003
🢒
Aurora
🢒
HVAC
🢒
Heating, Ventilation and Air Conditioning
🢒 Heater Hoses Replacement
Tools Required
J 38185
Hose Clamp Pliers
Removal Procedure
Drain the cooling system. Refer to
Cooling System Draining and Filling
in Engine Cooling.
Using the
J 38185
loosen the clamp.
Remove the outlet surge tank hose from the heater hose assembly.
Using the
J 38185
loosen the inlet (2) and outlet (1) hose clamps.
Remove the heater pipes.
Using the
J 38185
loosen the heater hose inlet and outlet clamps.
Remove the hoses (1, 2) from the heater core.
Remove the hose assembly.
Installation Procedure
Position the heater hose assembly into the vehicle.
Install the inlet and outlet hoses (1, 2) to the heater core.
Using the
J 38185
reposition the clamp.
Install the surge tank outlet hose.
Using the
J 38185
reposition the clamp.
Install the inlet (2) and outlet (1) hoses to the heater pipes.
Using the
J 38185
reposition the clamps.
Fill the cooling system. Refer to
Cooling System Draining and Filling
in Engine Cooling.