Heater Hose Coupling

Heater Hose Coupling





Disconnect

1. WARNING: Before disconnecting any heater water hoses, shut OFF the engine and wait until engine is fully cool. Failure to comply with this warning may result in serious injury or burns from hot liquid escaping from the engine cooling system.

Depressurize the engine cooling system.


2. Push the heater water hose toward the tube to fully expose the locking tabs.

3. NOTE: When compressing the white coupling retainer, the Heater Hose Inlet Tube Remover must be perpendicular to and on the highest point of the coupling.

Push the Heater Hose Inlet Tube Remover over the coupling retainer windows to compress the retainer locking tabs.






4. NOTE: A slight twisting motion while pulling on the heater water hose may be necessary to assist in the removal.

Pull the heater water hose away from the heater core tube.






5. Plug the heater water hose.

6. Remove the white coupling retainer from the tube.

7. Spread the retainer tabs apart and slide the retainer off the tube.





8. Discard the retainer.

Connect

1. Clean the tubes and lubricate with plain water.

2. Install a new coupling retainer, spacer, and lubricated O-ring seals into the quick disconnect coupling housing.





3. Push the heater water hose with a quick disconnect coupling onto the tube.





4. Make sure the coupling is fully engaged by lightly pulling on the heater water hose.