For 1990-2009 cars only
- Keep the valve lifters in order so that they may be installed in their original position.
- If the lifters are removed, install them in their original position.
- Inspect the following areas of the lifters:
- Inspect the valve rocker arms for wear at the rotation surfaces.
Important: When new valve lifters are installed, coat the valve lifters with camshaft and lifter prelube GM P/N 1052365 (or equivalent).
| • | The lifter body for wear and scuffing |
| • | The lifter bore for wear |
