Thermal Bypass Pipe Replacement

Thermal Bypass Pipe Replacement

Tools Required

J 21882 Oil Suction Pipe Installer


Removal Procedure

1. Drain the engine coolant. 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) .
2. Remove the upper intake manifold. Refer to Upper Intake Manifold Replacement (Service and Repair) .
3. Remove the thermal bypass hose. Refer to Thermal Bypass Hose Replacement (Service and Repair) .




4. Remove the thermal bypass pipe bolt.
5. Remove the thermal bypass pipe .



Installation Procedure





1. Apply sealant GM P/N 12345493 (Canadian P/N 10953488) or equivalent to the end of the thermal bypass pipe where the pipe is pressed into the intake manifold.
2. Install the thermal bypass pipe using J 21882 .

Notice: Refer to Fastener Notice .

3. Install the thermal bypass pipe bolt.

Tighten the bolt to 10 N.m (89 lb in).

4. Install the thermal bypass hose. Refer to Thermal Bypass Hose Replacement (Service and Repair) .
5. Install the upper intake manifold. Refer to Upper Intake Manifold Replacement (Service and Repair) .
6. Fill the engine with coolant. 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) .