58. Intake Manifold Cleaning and Inspection - Lower

Intake Manifold Cleaning and Inspection - Lower





1. Clean the intake manifold gasket mating surfaces using GM P/N 12346139 (Canadian P/N 10953463) or equivalent.
2. Clean the fuel injector bores.
3. Inspect the intake manifold for damage.
4. Repair or replace the intake manifold as necessary.