For 1990-2009 cars only
- Inspect the 3-4 accumulator piston (428) for the following conditions:
- Inspect the 3-4 accumulator piston pin (426) for scoring and free movement in the 3-4 accumulator piston bore.
- Inspect the 3-4 accumulator outer spring (423) and inner spring (424) for distorted or broken coils.
- Inspect the 3-4 accumulator piston cylinder (421) for the following conditions:
- Inspect the low blow off ball valve (420A), the low blow off ball valve spring (406) and the low blow off ball valve bore plug (405).
- Inspect the TCC blow off ball valve (420B), the TCC blow off ball valve spring (418) and the TCC blow off ball valve bore plug (417).
- Inspect the cooler ball valve (420C), the cooler ball valve spring (407) and the cooler ball valve bore plug (417).
- Inspect the manual valve (404), the manual valve link (402) and the manual valve clip (403) for damage.
- Inspect the manual valve (404) for binding or looseness in the case cover assembly (401).
- Inspect the case cover bore plugs (411) and the orificed cup plug (412). Correct the following conditions:
- Inspect the drive shaft bearing assembly (431).
- Inspect the axle oil seal assembly (409) for a missing garter spring or for a cut lip seal.
- Inspect the case cover (401) for the following:
- Inspect the input speed sensor assembly (440) for the following conditions:
| • | Porosity |
| • | A scored pin bore |
| • | A nicked piston seal groove |
| • | Porosity or cracks |
| • | A rough or scored seal surface |
| • | A cut seal (422) |
Important: Do not remove the blowoff valves unless the ball valves are damaged.
| • | Plug is loose |
| • | Plug is missing |
| • | Orifice is plugged |
Important: Do not remove the drive shaft bearing (431) unless the bearing is damaged.
| • | Porosity |
| • | Interconnected fluid passages |
| • | Cracks or rough machined surfaces |
| • | Damaged or missing magnet |
| • | Damaged housing |
| • | Bent or missing electrical terminals |
| • | Damaged input speed sensor clip (441) |
