Cleaning and Inspection Procedure
WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
- Remove the engine coolant temperature sensor.
- Remove the intake manifold coolant pipe bolt, if required.
- Remove the intake manifold coolant pipe, if required.
- Clean the intake manifold gasket mating surfaces.
- Clean the fuel injector bores.
- Inspect the threaded holes for damage.
- Inspect the intake manifold mating surfaces for damage.
Repair or replace the intake manifold as necessary.
- Apply sealant GM P/N 12345493 (Canadian P/N 10953488) to the end of a new intake manifold coolant pipe.
- Install the intake manifold coolant pipe using the J 21882 . See Special Tools and Equipment .
- Install the intake manifold coolant pipe bolt.
Tighten: Tighten the intake manifold coolant pipe bolt to 10 N.m (89 lb in).
- Apply sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent to the threads of the engine coolant temperature sensor.
- Install the engine coolant temperature sensor.
Tighten: Tighten the engine coolant temperature sensor to 23 N.m (17 lb ft).
IMPORTANT:
Use GM P/N 12346139 (Canadian P/N 10953463) or equivalent to clean the intake manifold mating surfaces.
NOTE:
Refer to Fastener Notice in Cautions and Notices.