For 1990-2009 cars only
- Clean the piston oil nozzle in cleaning solvent using GM P/N 10953463 (Canadian P/N 88901148) or equivalent.
- Dry the nozzle with compressed air.
- Inspect the piston oil nozzle for the following:
Warning: Refer to Cleaning Solvent Warning in the Preface section.
Warning: Wear safety glasses in order to avoid eye damage.
| • | For cracks or damage |
| • | Plugged oil passages (1) |
| • | Bent, misaligned, or cracked oil nozzle tubes (2) |
| • | Bent or broken clip (3) |
