Valve Cover

Removal & Installation

Right Valve Cover

To Remove:

1. Disconnect the negative battery cable.
2. Disconnect the ignition coil.

   CAUTION
   Do not pull on the spark plug wire because it may separate from the spark plug wire connector inside the spark plug boot.

3. Disconnect the spark plug wires by twisting while pulling upward.
4. Disconnect the heater hose support from the stud.
5. Disconnect the spark plug wire holders.
6. Disconnect the engine control sensor wiring from the mass airflow (MAF) sensor. Move the engine control sensor wiring to the side.
7. Disconnect the vacuum hose.
8. Disconnect the wiring harness from the valve cover studs.
9. Disconnect the crankcase ventilation tube.

   NOTE: Loosen silicone sealant from the cylinder head by sliding a flat knife between the valve cover gasket and cylinder head. This will prevent stretching of the valve cover gasket.

10. Remove the 8 bolts and remove the valve cover.
11. Remove the valve cover gasket, if needed.

To Install:

CAUTION
Do not clean the valve cover gasket with solvent. This can cause damage to the valve cover gasket.

1. Clean all mating surfaces.
2. Install the valve cover gasket, if it had been removed earlier.

   NOTE: The valve cover must be installed within 4 minutes. If it is not, remove the sealant and reapply.

3. Apply a bead of silicone gasket and sealant in the two places where the cylinder head and lower intake manifold meet, as illustrated below.

   Apply silicone for valve cover installation (3.0L)

4. Install the valve cover by positioning the valve cover then tightening the 8 bolts in the sequence shown below.
   • Torque to 9 ft-lb (12 Nm).

   Valve cover bolt tightening sequence (3.0L)

5. Connect the crankcase ventilation tube.
6. Connect the wiring harness to the valve cover studs.
7. Connect the vacuum hose.
8. Connect the engine control sensor wiring to the MAF sensor.
9. Connect the spark plug wires to the right-hand spark plug wire holders.
10. Connect the heater hose support.
11. Install the spark plug wires.
12. Connect the ignition coil electrical connector.
13. Connect the negative battery cable.

Left Valve Cover

To Remove:

1. Remove the upper intake manifold.
2. Disconnect the left spark plug wire holders.
3. Disconnect the engine control harness from the valve cover studs.
4. Remove the 3 bolts and the 5 stud bolts.

   NOTE: Loosen silicone sealant from the cylinder head by sliding a flat knife between the valve cover gasket and cylinder head. This will prevent stretching of the valve cover gasket.

5. Remove the valve cover.
6. Remove the valve cover gasket, if necessary.

To Install:

CAUTION
Do not clean the valve cover gasket with solvent. This can cause damage to the valve cover gasket.

1. Clean all mating surfaces.
2. If removed, install the valve cover gasket.

   NOTE: The valve cover must be installed within 4 minutes. If it is not, remove the sealant and reapply.

3. Apply a bead of silicone gasket and sealant in two places where the cylinder head and the lower intake manifold meet.

   Apply silicone for valve cover installation (3.0L)

4. Install the valve cover by positioning the valve cover and tightening the 3 bolts and the 5 stud bolts in the sequence shown below.
   • Torque to 9 ft-lb (12 Nm).

   Valve cover bolt tightening sequence (3.0L)

5. Connect the engine control harness to the valve cover.
6. Connect the left-hand spark plug wire holders.
7. Install the upper intake manifold.