For 1990-2009 cars only
- Clean the valve rocker arm cover in solvent.
- Dry the covers with compressed air.
- Inspect the covers for the following components:
Caution: Wear safety glasses in order to avoid eye damage.
| • | Gouges or damage to the sealing surfaces |
| • | Dent or damage to the exterior of the cover |
| • | A dented or damaged cover may interfere with the valve rocker arms. |
| • | Restrictions to the ventilation system passages |
| • | The PCV valve grommet for cracking or damage |
