Coolant Line/Hose: Service and Repair
TUBE-WATER PUMP INLETREMOVAL
WITHOUT AIR CONDITIONING
1. Partially drain cooling system.
2. Loosen both bypass hose clamps and position to center of hose. Remove hose from vehicle.
WITH AIR CONDITIONING
If equipped with A/C, the generator and A/C compressor along with their common mounting bracket (2) must be partially removed. Removing generator or A/C compressor from their mounting bracket is not necessary. Also, discharging A/C system is not necessary. Do not remove any refrigerant lines from A/C compressor.
WARNING: THE A/C SYSTEM IS UNDER PRESSURE EVEN WITH ENGINE OFF. REFER TO REFRIGERANT WARNINGS IN HEATING AND AIR CONDITIONING.
1. Disconnect battery negative cable.
2. Partially drain cooling system.
3. Remove upper radiator hose clamp and hose at radiator.
4. Unplug wiring harness from A/C compressor.
5. Remove air cleaner assembly.
6. Remove accessory drive belt (Refer to 7 - COOLING/ACCESSORY DRIVE/DRIVE BELTS REMOVAL).
7. Remove bracket-to-intake manifold bolts.
8. The drive belt idler pulley must be removed to gain access to one of A/C compressor/generator bracket mounting bolts (3). Remove idler pulley bolt and remove idler pulley.
9. Remove oil dipstick tube mounting bolt (3) at side of A/C-generator mounting bracket.
10. Disconnect throttle body cables.
11. Remove heater hose clamp and heater hose from heater hose coolant return tube.
12. Remove heater hose coolant return tube mounting bolt and remove tube from engine. Discard the old tube O-ring.
13. Remove six bracket bolts.
14. Lift and position generator and A/C compressor (along with their common mounting bracket) to gain access to bypass hose. A block of wood may be used to hold assembly in position.
15. Loosen and position both hose clamps to center of bypass hose. Remove hose from vehicle.
INSTALLATION
WITHOUT AIR CONDITIONING
1. Position bypass hose clamps to center of hose.
2. Install bypass hose to engine.
3. Secure both hose clamps.
4. Fill cooling system.
5. Start and warm the engine. Check for leaks.
WITH AIR CONDITIONING
1. Position bypass hose clamps to center of hose.
2. Install bypass hose to engine.
3. Secure both hose clamps.
4. Install generator-A/C mounting bracket assembly to engine. Tighten bolts (number 1 and 2) to 54 Nm (40 ft. lbs.) torque. Tighten bolts (number 3) to 40 Nm (30 ft. lbs.) torque.
5. Install a new O-ring to the heater hose coolant return tube. Coat the new O-ring with antifreeze before installation.
6. Install coolant return tube and its mounting bolt to engine.
7. Connect throttle body control cables.
8. Install oil dipstick mounting bolt.
9. Install idler pulley. Tighten bolt to 54 Nm (40 ft. lbs.) torque.
10. Install drive belt.
11. Install air cleaner assembly.
12. Install upper radiator hose to radiator.
13. Connect wiring harness to A/C compressor.
14. Connect battery negative cable.
15. Fill cooling system.
16. Start and warm the engine. Check for leaks.