For 1990-2009 cars only
- Clean all of the parts in cleaning solvent. Dry the parts with compressed air.
- Inspect the following areas:
| • | The oil pump housing and cover for cracks, scoring (3), casting imperfections, and damaged threads. |
| • | The drive gear shaft (5). If the shaft is loose in the oil pump housing, replace the oil pump. |
| • | The pressure relief valve for scoring and sticking. Burrs may be removed with a fine oil stone. |
| • | The relief valve spring for loss of tension. |
| • | The oil pump screen for broken wire mesh or looseness. If the pipe is loose or has been removed from the screen, the oil pump screen must be replaced. |
| • | The gears for chipping, galling, and wear (1, 2). |
| Important: If the drive gear and driveshaft are worn, replace the entire oil pump. |
| • | The drive gear and driveshaft for looseness and wear. |
