Coolant Line/Hose: Service and Repair
HEATER SUPPLY TUBE 2.7LREMOVAL
WARNING: DO NOT REMOVE PRESSURE CAP WITH THE SYSTEM HOT AND UNDER PRESSURE BECAUSE SERIOUS BURNS FROM COOLANT CAN OCCUR.
1. Drain cooling system.
2. Remove radiator upper crossmember.
3. Remove radiator upper hose at tube.
4. Remove heater hose from heater tube at rear of engine.
5. Disconnect heater tube from retaining clip at rear of engine.
6. Disconnect electrical connector from coolant temperature sensor.
7. Remove screws attaching heater tube to outlet connector.
8. Disengage heater tube from outlet connector. To remove heater tube, move forward until the tube clears cylinder heads.
INSTALLATION
1. Inspect heater tube O-ring. Replace as necessary.
2. Lubricate O-ring with a silicone type grease such as Mopar Dielectric Grease.
3. Install the heater tube by inserting tube in-between cylinder heads. Insert tube into water outlet housing.
4. Attach heater tube to the retaining clip at rear of engine.
5. Install attaching screws and tighten to 3 Nm (30 in. lbs.).
6. Install radiator upper and heater hoses to heater tube.
7. Connect electrical connector to coolant temperature sensor.
8. Install radiator upper crossmember.
9. Fill cooling system.