For 1990-2009 cars

### Cleaning Procedure

1. Clean the camshaft cover in solvent.

Caution: Refer to Safety Glasses Caution in the Preface section.

2. Dry the camshaft cover with compressed air.

### Inspection Procedure

1. Inspect the exterior of the left camshaft cover for the following:

• | Dents or damage

• | A dented or damaged cover may:

- | Leak oil

- | Effect crankcase ventilation

- | Interfere with the camshafts

- | Interfere with the ignition coil sealing

- | Allow water, condensation, or debris to enter the engine

• | Damaged threads for the ignition coils or ground straps

• | Damaged camshaft cover bolt holes

• | Damaged threads for the oil fill cap

• | Damaged positive crankcase ventilation (PCV) tube fitting

• | Damaged holes for the wiring harness retainers

2. Inspect the interior of the left camshaft cover for the following:

• | Damaged, loose or missing baffle

• | Damaged, loose or missing baffle fasteners

• | Restrictions to the ventilation system passages

• | Damaged or warped seal groove for the camshaft cover seal and/or spark plug port seals

3. Inspect the exterior of the right camshaft cover for the following:

• | Dents or damage

• | A dented or damaged cover may:

- | Leak oil

- | Effect crankcase ventilation

- | Interfere with the camshafts

- | Interfere with ignition coil sealing

- | Allow water, condensation or debris to enter the engine

• | Damaged threads for the ignition coils or ground straps

• | Damaged camshaft cover bolt holes

• | Damaged PCV tube orifice fitting

• | Damaged holes for the wiring harness retainers

4. Inspect the interior of the right camshaft cover for the following:

• | Damaged, loose or missing baffle

• | Damaged, loose or missing baffle fasteners

• | Restrictions to the ventilation system passages

• | Damaged or warped seal groove for the camshaft cover seal and/or spark plug port seals

5. Inspect the following related camshaft cover components for damage:

• | Oil fill cap

• | PCV clean air tube

• | PCV dirty air tube

• | Camshaft cover bolts and grommets

• | Ground straps and bolts

• | Ignition coil bracket assembly and wiring harness

6. Repair or replace the camshaft cover and/or components as necessary.