Hot Water Bypass Valve Replacement (Standard)

HOT WATER BYPASS VALVE REPLACEMENT (STANDARD)

REMOVAL PROCEDURE

TOOLS REQUIRED
J 38185 Hose Clamp Pliers




1. Remove the air cleaner.
2. Drain the engine coolant. Refer to Draining and Filling Cooling System in Cooling System. Service and Repair
3. Use the J 38185 in order to remove the hose clamps from the outlet pipe (6) and from the inlet pipe (5).
4. Remove the heater inlet pipe (5) and the outlet pipe (6) from the bypass valves (4).
5. Remove the bolts (3) that retain the valves (4) to the heater assembly.
6. Remove the bypass valves (4) from the heater assembly.

INSTALLATION PROCEDURE




1. Install the bypass valves (4) to the heater assembly.

NOTE: Refer to Fastener Notice in Service Precautions.

2. Install the bolts (3) that retain the valves (4) to the heater assembly.

Tighten
Tighten the bolts that retain the valves to 4 N.m (35 lb in).

3. Install the heater inlet pipe (5) and the outlet pipe (6) to the bypass valves.
4. Use the J 38185 in order to install the hose clamps to the outlet pipe (6) and to the inlet pipe (5).
5. Fill the cooling system.
6. Ensure that no leaks exist in the cooling system. Refer to Leak Testing. Leak Testing
7. Install the air cleaner.