For 1990-2009 cars

1. Inspect the control valve body cover (53) for the following conditions:

• | Damaged or porous gasket sealing surfaces

• | Damaged or porous casting surfaces

• | Damaged or stripped bolt holes

2. Inspect the control valve body gaskets (54, 59) for damage. The gaskets are reusable if they are NOT damaged.
3. Assemble the cover inner gasket (59) to the cover (53). Use an assembly lubricant.
4. Assemble the cover gasket (54) and cover (53) onto the case. Make sure the gaskets and electrical connector are positioned correctly.
5. Install two flange bolts (56) in the locations shown. These bolts will properly locate the cover and gasket to the case.
6. Install the remaining bolts as indicated:

• | Nine remaining flange bolts (56)

• | Four TORX bolts (57)

• | Two stud bolts (58)

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

• | Refer to Fastener Notice .