GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Cadillac
🢒
2009
🢒
STS
🢒
HVAC
🢒
Heating, Ventilation, and Air Conditioning
🢒 Heater Outlet Hose Replacement
Heater Outlet Hose Replacement LH2
Tools Required
J 38185
Hose Clamp Pliers
Removal Procedure
Drain the cooling system. Refer to
Cooling System Draining and Filling
.
Lower the vehicle.
Remove the injector sight shield. Refer to
Fuel Injector Sight Shield Replacement
.
Using
J 38185
, disengage the hose clamp and disconnect the heater outlet hose (1) from the radiator hose outlet housing.
Using
J 38185
, disengage the hose clamp and disconnect the heater outlet hose (1) from the heater pipe assembly.
Remove the heater outlet hose (1).
Installation Procedure
Install the heater outlet hose (1).
Using
J 38185
, disengage the hose clamp and connect the heater outlet hose (1) to the heater pipe assembly.
Using
J 38185
, disengage the hose clamp and connect the heater outlet hose (1) to the radiator hose outlet housing.
Install the injector sight shield. Refer to
Fuel Injector Sight Shield Replacement
.
Fill the cooling system. Refer to
Cooling System Draining and Filling
.
Heater Outlet Hose Replacement LY7
Special Tools
J 38185
Hose Clamp Pliers
Removal Procedure
Drain the cooling system. Refer to
Cooling System Draining and Filling
.
Remove the battery tray. Refer to
Battery Tray Replacement
.
Remove the cowl panel retaining bolts.
Remove the cowl panel.
Using
J 38185
slide the hose clamp away from the base of the heater hose.
Remove the outlet heater hose from the engine cooling thermostat assembly.
Using
J 38185
, slide the hose clamp away from the base of the heater hose.
Remove the heater outlet hose from the heater core.
Remove the heater outlet hose.
Installation Procedure
Position the outlet heater hose assembly into the vehicle.
Install the outlet hose to the heater core.
Using
J 38185
slide the hose clamp back into the original position on the hose.
Install the outlet hose to the engine cooling thermostat assembly.
Using
J 38185
slide the hose clamp back into the original position on the hose.
Install the cowl panel.
Caution:
Refer to
Fastener Caution
in the Preface section.
Install the cowl panel retaining bolts and tighten to
6 N·m (13 lb ft)
.
Install the battery tray. Refer to
Battery Tray Replacement
.
Fill the cooling system. Refer to
Cooling System Draining and Filling
.