Valve Cover

Removal & Installation

Right Valve Cover

To Remove:

1. Disconnect the negative battery cable and the spark plug wires.
2. Drain the cooling system.
3. Disconnect the crankcase vent tube, the upper radiator hose, and the electrical connectors for the mass airflow (MAF) sensor and the generator.
4. Disconnect the heater water hose.
5. Remove the accelerator cable snow shield.
6. Disconnect the speed control actuator cable and the vacuum line.
7. Remove the valve cover and gasket.

To Install:

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

1. Clean and inspect the sealing surfaces.
2. Use silicone gasket and sealant in the two spots illustrated below.

   Apply silicone rubber in these locations (4.0L)

3. Install the valve cover, gasket, and bolts. Tighten in the sequence shown. Torque to 62 in-lb (7 Nm).

   Valve cover bolt tightening sequence right side (4.0L)

4. Connect the vacuum line and the speed control actuator cable.
5. Install the accelerator cable snow shield.
6. Connect the heater water hose and the electrical connectors for the MAF sensor and generator.
7. Connect the upper radiator hose, the crankcase vent tube, and the spark plug wires.
8. Connect the negative battery cable.
9. Fill and bleed the cooling system.

Left Valve Cover

To Remove:

1. Disconnect the negative battery cable.
2. Remove the upper intake manifold, the dipstick tube, and the valve cover and gasket.

To Install:

NOTE: Clean and examine all of the mating surfaces.

1. Apply a bead of silicone gasket and sealant in the two places shown below.

   Apply silicone rubber in these locations (4.0L)

2. Install the valve cover, gasket, and bolts. Tighten according to the sequence shown. Torque to 62 in-lb (7 Nm).

   Valve cover bolt tightening sequence left side (4.0L)

3. Install dipstick tube. Torque to 17 ft-lb (23 Nm).
4. Install the upper intake manifold.