For 1990-2009 cars

### Cleaning and Inspection Procedure

1. Inspect the rear control valve body (323) for the following conditions:

• | Porosity

• | Cracks

• | Damaged machined surfaces

• | Chips or debris

2. Clean all the valves, springs, bushings, and the rear control valve body (323) in solvent.
3. Dry all the parts using compressed air.

### Installation Procedure

1. Install the secondary regulator valve spring (416) and the secondary regulator valve (415).
2. Install the solenoid modulator valve bore plug (414) and the sleeve/bore plug retainer (401).
3. Install the B-1 modulator control valve (417) and the B-1 modulator control valve spring (418).
4. Install the low modulator valve (419) and the low modulator valve spring (420).
5. Install the solenoid modulator valve (421) and the solenoid modulator valve spring (422).
6. Install the C-2 accumulator O-ring seal (428) and the C-2 accumulator piston (427).
7. Install the C-2 accumulator outer spring (426) and the C-2 accumulator inner spring (425).
8. Install the B-1 accumulator spring (431) and the B-1 accumulator piston (430).
9. Install the B-1 accumulator split seal ring (429).
10. Install the rear valve body cover No.1 gasket (432), plate (433) and plate gasket (434).
11. Install the rear valve body cover No.1 check ball (435) and the B-1 accumulator counter spring (438).
12. Install the rear valve body cover No.1 (436).
13. Install the rear valve body cover No.1 bolts (437).
14. Install the rear valve body cover No.2 gasket (440), plate (441) and plate gasket (442).
15. Install the rear valve body cover No.2 (444).
16. Install the rear valve body cover No.2 bolts (443).
17. Install the C-1 control valve (445).
18. Install the C-1 control valve sleeve (446).
19. Install the C-0 accumulator spring (447).
20. Install the C-0 accumulator piston (448).
21. Install the C-0 accumulator O-ring seal (449).
22. Install the 2-3 timing valve spring (453).
23. Install the 2-3 timing valve (452).
24. Install the C-1 damper spring (456).
25. Install the C-1 damper piston split seal ring (455).
26. Install the C-1 damper piston (454).
27. Install the C-3 modulator valve (457).
28. Install the C-3 modulator valve spring seat (458) and the C-3 modulator valve spring (459).
29. Install the lock up relay control valve (405).
30. Install the lock up relay control valve spring (404) and the lock up relay control valve plunger (403).
31. Install the lockup relay control valve sleeve (402) and the sleeve/bore plug retainer (401).