Valve Cover: Service and Repair
Valve Cover
This is a "Trustmark Authoring Standards (TAS) Repair Procedure"
- TAS style procedures can be identified by steps that have no accompanying step text and the magenta color of the electrical connectors and fasteners such as nuts, bolts, clamps or clips.
- TAS removal and installation procedures use a sequence of color illustrations to indicate the order to be followed when removing/disassembling or installing/assembling a component.
- Many of the TAS procedures will have the installation information within the removal steps.
- The TAS color illustrations use a variety of symbols to indicate important details of the procedures. It is important to understand these symbols in order to properly used the TAS procedures.
Refer to How to Use TAS Procedures and TAS Symbol Glossary at Vehicle | Description and Operation for additional information on these TAS procedures.
For additional information, refer to How to Use TAS Procedures How to Use TAS Procedures
Removal
NOTE:
The cylinder head and valve cover are machined as a pair, and cannot be serviced separately.
WARNING: Make sure to support the vehicle with axle stands.
1 Raise and support the vehicle.
2 Remove the cover and disconnect the battery ground cable.
For additional information, refer to Specifications Specifications
3 Remove the timing component housing.
For additional information, refer to Timing Components Housing Service and Repair
4 Remove the crankcase vent oil separator.
For additional information, refer to Crankcase Vent Oil Separator Service and Repair
5 Remove the engine RH mount.
For additional information, refer to Engine Mount RH Engine Mount RH
6 Remove the 6 ignition coil-on-plugs.
For additional information, refer to Ignition Coil-On-Plug Service and Repair
7 Disconnect the engine ground cable.
8 Disconnect the RH front HO2S electrical connector.
9 Disconnect the 6 fuel injector electrical connectors.
10 Disconnect the 2 camshaft position (CMP) sensor electrical connectors.
11 Remove the 2 CMP sensors.
12 Disconnect the variable valve timing (VVT) solenoid.
CAUTION: Extreme cleanliness must be exercised when handling this component.
13 Remove the VVT solenoid.
14 Disconnect the camshaft profile switching (CPS) solenoids.
CAUTION: Extreme cleanliness must be exercised when handling this component.
15 Remove the CPS solenoids.
16 Release the cylinder head wiring harness.
17 Remove the 2 lifting brackets.
18 Remove the valve cover.
19 Remove and discard the 6 O-ring seals.
NOTE:
Do not disassemble further if the component is removed for access only.
20 Remove the oil filler cap.
21 Remove the 2 clips.
Installation
1 Install the clips.
2 Install the oil filler cap.
CAUTION: Extreme cleanliness must be exercised when handling these components.
CAUTION: Make sure that the mating faces are clean and free of corrosion and foreign material.
3 Clean the component mating faces.
4 Install new O-ring seals.
5 For sealant information, refer to the engine specification section.
For additional information, refer to Specifications [1][2]Mechanical Specifications
6 Apply the sealant as shown.
Special Service Tool
Roller, Sealant, 303-1285
CAUTION: Extreme cleanliness must be exercised when handling these components.
7 Position the camshafts, if required.
NOTE:
The component must be installed within 20 minutes of the sealant application.
NOTE:
Do not tighten at this stage.
8 Using the sequence illustrated, tighten the valve cover to cylinder head bolts evenly and progressively a few turns at a time, until there is full contact.
Torque to: 16 Nm
Torque to: 16 Nm
9 Install the lifting brackets.
Torque to: 48 Nm
10 Secure the cylinder head wiring harness.
Torque to: 6 Nm
CAUTION: Extreme cleanliness must be exercised when handling this component.
CAUTION: A new O-ring seal is to be installed.
11 Install the CPS solenoids.
Torque to: 10 Nm
12 Connect the CPS solenoids.
CAUTION: Apply clean engine oil to the VVT solenoid shaft.
CAUTION: Extreme cleanliness must be exercised when handling this component.
CAUTION: A new O-ring seal is to be installed.
13 Install the VVT solenoid.
Torque to: 10 Nm
14 Connect the VVT solenoid.
15 Install the CMP sensors.
Torque to: 10 Nm
16 Connect and secure the CMP sensor electrical connectors.
17 Connect the fuel injector electrical connectors.
18 Connect the ground cable.
Torque to: 6 Nm
19 Install the engine mount.
For additional information, refer to Engine Mount RH Engine Mount RH
20 Install the ignition coil-on-plugs.
For additional information, refer to Ignition Coil-On-Plug Service and Repair
21 Install the crankcase vent oil separator.
For additional information, refer to Crankcase Vent Oil Separator Service and Repair
22 Install the timing component housing.
For additional information, refer to Timing Components Housing Service and Repair
23 Connect the battery ground cable and install the cover.
For additional information, refer to Specifications Specifications