Heater Outlet Hose Replacement LS4

Tools Required

J 38185 Hose Clamp Pliers

1. Drain the cooling system. Refer to Cooling System Draining and Filling .



2. Use J 38185 to reposition the heater outlet hose clamp to the heater pipe.
3. Remove the heater outlet hose (2) from the heater pipe.



4. Use J 38185 to reposition the heater outlet hose to the heater core clamp.
5. Remove the heater outlet hose (2) from the heater core.

1. Connect heater outlet hose (2) to the heater core.
2. Use J 38185 to reposition the heater outlet hose to heater core clamp.



3. Install the heater outlet hose (2) to the heater pipe.
4. Use J 38185 to reposition the heater outlet hose to the heater pipe clamp.
5. Fill the cooling system. Refer to Cooling System Draining and Filling .

Heater Outlet Hose Replacement RPOs LZE, LZ4, LZ8

Tools Required

J 38185 Hose Clamp Pliers

1. Drain the coolant. Refer to Cooling System Draining and Filling .
2. Remove the surge tank from the surge tank bracket.
3. Reposition the heater outlet hose clamp at the heater core using the J 38185 .
4. Reposition the heater outlet hose clamp at the engine using the J 38185 .



5. Remove the heater outlet hose from the heater core.
6. Remove the heater outlet hose from the engine.
7. Remove both heater outlet hose clamps from the heater outlet hose.

1. Install both heater outlet hose clamps to the heater outlet hose.



2. Install the heater outlet hose to the engine.
3. Install the heater outlet hose to the heater core.
4. Reposition the heater outlet hose clamp at the engine using the J 38185 .
5. Reposition the heater outlet hose clamp at the heater core using the J 38185 .
6. Install the surge tank to the surge tank bracket.
7. Fill the coolant. Refer to Cooling System Draining and Filling .