Valve Cover: Service and Repair

Valve Cover





Material

Removal
1. Disconnect the battery ground cable.





2. Disconnect the camshaft position (CMP) sensor electrical connector.





3. Position aside the cylinder head temperature (CHT) sensor boot.





4. Disconnect the CHT sensor electrical connector.





5. Disconnect the coil-on-plug electrical connectors.





6. Remove the ignition coils.
1. Remove the ignition coil bolts.
2. While rotating, pull the ignition coils straight up.





7. Disconnect the breather tube from the valve cover.





8. Disconnect the wiring harness retainers from the valve cover studs and position aside.





9. Detach the fuel injection supply manifold wiring harness from the valve cover.





10. Remove the bolts and the valve cover.

11. CAUTION: Do not use metal scrapers, wire brushes, power abrasive discs or other abrasive means to clean the sealing surfaces. These tools cause scratches and gouges which make leak paths.

Clean and inspect the sealing surfaces.

Installation





1. Inspect the valve cover gaskets for damage. Install new gaskets if necessary.





2. Install the valve cover and bolts. Tighten the bolts in the sequence shown.





3. Reposition the fuel injection supply wiring harness.





4. Install the wiring harness retainers on the valve cover studs.





5. Install the breather tube on the valve cover.





6. Install the coil-on-plug assemblies.

1. NOTE: Push the coil assemblies down firmly until the boot seal has sealed the access hole. Install the coil assemblies.

2. Install the coil assembly bolts.





7. Connect the ignition coil electrical connectors.





8. Connect the cylinder head temperature (CHT) sensor electrical connector.





9. Position the CHT boot.





10. Connect the camshaft position (CMP) sensor electrical connector.
11. Connect the battery ground cable.