Removal
REMOVAL
WARNING: Refer to the applicable warnings and cautions for this system before performing the following operation. Failure to follow the warnings and cautions could result in possible personal injury or death.
NOTE: The heater inlet hose is constructed from formed steel tubing and rubber hoses. Depending on application, the ends are secured to the heater core, engine oil cooler or the engine by spring tension clamps.
1. Drain the engine cooling system.
2. Using spring tension clamp pliers, compress and slide the clamps off of each end of the hose being removed (Figure 1), (Figure 2) or (Figure 3).
CAUTION: DO NOT apply excessive pressure on heater tubes or connections when removing heater hoses. Excessive pressure may damage or deform the tubes/heater core, causing an engine coolant leak.
3. Disconnect each hose end by carefully twisting the hose back and forth on the tube or nipple, while gently pulling it away from the end of the tube or nipple.
NOTE: Replacement of the heater inlet hoses will be required if the hose ends are cut for removal.
4. If necessary, carefully cut the hose end and peel the hose off of the tube or nipple.
Figure 1 Heater Inlet Hose - Typical
Figure 2 Heater Inlet Hose - 3.3L/3.8L W/O Rear Heater
Figure 3 Heater Inlet Hose - 3.3L/3.8L With Rear Heater