Heater Outlet Hose Replacement

Heater Outlet Hose Replacement (LLT)

Special Tools

J 38185 - Hose Clamp Pliers

Removal Procedure

1. Drain the cooling system. Refer to Cooling System Draining and Filling (LS3, L99 Static Fill) (Cooling System Draining and Filling (Static Fill))Cooling System Draining and Filling (LLT Static Fill) (Cooling System Draining and Filling (Static Fill))Cooling System Draining and Filling (GE 47716) (Cooling System Draining and Filling (GE 47716)).




2. Disengage tension on the heater outlet hose clamp (1) at the engine using J 38185 - Hose Clamp Pliers.
3. Remove the heater outlet hose (2) from the engine.




4. Disengage tension on the heater outlet hose clamp (1) at the heater core using J 38185 - Hose Clamp Pliers.
5. Remove the heater outlet hose (2) from the heater core.
6. Remove the heater outlet hose from the vehicle.

Installation Procedure

1. Install heater inlet hose to the vehicle.





Note: Lubricate the inside diameters of the hose with clean coolant prior to installation.

2. Install the heater outlet hose (2) to the heater core.
3. Engage tension on the heater outlet hose clamp (1) at the radiator using J 38185 - Hose Clamp Pliers.




4. Install the heater outlet hose (2) to the engine.
5. Engage tension on the heater outlet hose clamp (1) at the engine using J 38185 - Hose Clamp Pliers.
6. Fill the cooling system. Refer to Cooling System Draining and Filling (LS3, L99 Static Fill) (Cooling System Draining and Filling (Static Fill))Cooling System Draining and Filling (LLT Static Fill) (Cooling System Draining and Filling (Static Fill))Cooling System Draining and Filling (GE 47716) (Cooling System Draining and Filling (GE 47716)).