1. Remove the intake manifold. Refer to Intake Manifold Replacement .
2. Gently pry up the rubber covers.
3. Disconnect the knock sensor electrical connectors.



4. Remove the knock sensors.



5. Remove the engine valley cover bolts.
6. Remove the engine valley cover and gasket.
7. Discard the old gasket.



8. Remove the knock sensor oil seals (1) from the cover (2).
9. Clean and inspect the engine valley cover. Refer to Engine Block Valley Cover Cleaning and Inspection .

Important: All gasket surfaces should be free of oil or other foreign material during assembly.

1. Lubricate the NEW knock sensor seals (1) with clean engine oil.
2. Install the knock sensor oil seals (1) into the engine valley cover (2).

Notice: Refer to Fastener Notice in the Preface section.




3. Install the engine valley cover and a NEW gasket onto the engine block.
4. Install the engine valley cover bolts.

Tighten
Tighten the bolts to 25 N·m (18 lb ft).




5. Install the knock sensors.

Tighten
Tighten the sensors to 20 N·m (15 lb ft).




6. Connect the knock sensor electrical connectors.
7. Push down on the rubber covers.
8. Install the intake manifold. Refer to Intake Manifold Replacement .