Colorado 4WD V8-5.3L (2010)
2. Using the J 43181, release the inlet heater hose quick connect (1) from the heater core inlet.
3. Position the inlet heater hose clamp (4) at the engine block using J 38185.
4. Remove the heater inlet hose (3) from the inlet hose fitting (6) at the engine block.
5. Remove the heater inlet hose (3).
Installation Procedure
1. Apply coolant to the end of the heater inlet hose (5).
Note: When installing a new heater inlet hose, place the clamps on the hose before installing the hose to the inlet hose fitting at the engine block.
2. Install the heater inlet hose (3) to the inlet hose fitting (6) at the engine block.
3. Position the inlet heater hose clamp (4) at the engine block using J 38185.
4. Install the heater inlet hose (3) to the heater core inlet.
5. Press the quick connect (1) onto the heater core inlet until fully seated.
6. Fill the engine cooling system. Refer to Cooling System Draining and Filling (Static Fill) (See: Engine, Cooling and Exhaust/Cooling
System/Service and Repair/Cooling System Draining and Filling (Static Fill)) Cooling System Draining and Filling (Vac N Fill) (See: Engine,
