Thermal Bypass Fitting Replacement
Thermal Bypass Fitting Replacement
Removal Procedure
1. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement (Service and Repair) .
2. Drain the cooling system. Refer to Cooling System Draining and Filling (LNJ Static Fill) (Service and Repair)Cooling System Draining and Filling (LNJ GE 47716 Fill) (Service and Repair)Cooling System Draining and Filling (LY7 Static Fill) (Service and Repair)Cooling System Draining and Filling (LY7 GE 47716 Fill) (Service and Repair) .
3. Release and slide the thermal bypass pipe hose clamp (2) away from the thermal bypass fitting.
4. Remove the thermal bypass hose (1) from the thermal bypass fitting.
5. Release and slide the heater outlet hose clamp (1) away from the thermal bypass fitting.
6. Remove the heater outlet hose (2) from the thermal bypass fitting.
7. Remove the thermal bypass fitting bolt (2).
8. Remove the thermal bypass fitting (1).
9. Remove the seal from the thermal bypass fitting.
Installation Procedure
1. Install a new seal to the thermal bypass fitting.
2. Apply engine coolant to the thermal bypass fitting seal to ease installation.
3. Install the thermal bypass fitting (1).
Notice: Refer to Fastener Notice .
4. Install the thermal bypass fitting bolt (2).
Tighten the bolt to 12 N.m (106 lb in).
5. Install the heater outlet hose (2) to the thermal bypass fitting.
6. Position the heater outlet hose clamp (1) over the thermal bypass fitting.
7. Install the thermal bypass hose (1) to the thermal bypass fitting.
8. Position the thermal bypass pipe hose clamp (2) over the thermal bypass fitting.
9. Fill the cooling system. Refer to Cooling System Draining and Filling (LNJ Static Fill) (Service and Repair)Cooling System Draining and Filling (LNJ GE 47716 Fill) (Service and Repair)Cooling System Draining and Filling (LY7 Static Fill) (Service and Repair)Cooling System Draining and Filling (LY7 GE 47716 Fill) (Service and Repair) .
10. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement (Service and Repair) .