Tools Required

J 21882 Oil Suction Pipe Installer

1. Drain the engine coolant. Refer to Cooling System Draining and Filling .
2. Remove the upper intake manifold. Refer to Upper Intake Manifold Replacement .
3. Remove the thermal bypass hose. Refer to Thermal Bypass Hose Replacement .



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

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 in the Preface section.

3. Install the thermal bypass pipe bolt.

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

4. Install the thermal bypass hose. Refer to Thermal Bypass Hose Replacement .
5. Install the upper intake manifold. Refer to Upper Intake Manifold Replacement .
6. Fill the engine with coolant. Refer to Cooling System Draining and Filling .