Valve Body

DISASSEMBLY

Fig. 89:

1. Remove the screws holding the solenoid and pressure switch assembly to the valve body (Fig. 89). Do not remove the screws on the top of the solenoid and pressure switch assembly.
2. Separate the solenoid and pressure switch assembly from the valve body.

Fig. 90:

3. Remove the screw holding the detent spring (Fig. 90) onto the valve body.
4. Remove the detent spring from the valve body.
5. Remove the TRS selector plate from the valve body and the manual valve.
6. Remove the clutch passage seals from the valve body, if necessary.

Fig. 91:

7. Remove the screws holding the accumulator cover onto the valve body (Fig. 91).
8. Remove the accumulator springs and pistons from the valve body. Note which accumulator piston and spring belong in each location.
9. Place the valve body on the bench with the transfer plate upward.

NOTE: The valve body contains seven check balls. The transfer plate must be placed upward to prevent losing the check balls when the transfer plate is removed from the valve body.

10. Remove the screws holding the valve body to the valve body transfer plate.

Fig. 92:

11. Remove the transfer plate from the valve body. Note the location of all check balls (Fig. 92).
12. Remove the check balls from the valve body.
13. Remove the retainers securing the solenoid switch valve, manual valve, and the low/reverse switch valve into the valve body and remove the associated valve and spring. Tag each valve and spring combination with location information to aid in assembly.

ASSEMBLY

Fig. 93:

1. Lubricate valves, springs, and the housing valve bores with clean transmission fluid.
2. Install solenoid switch valve, manual valve, and the low/reverse switch valve into the valve body.
3. Install the retainers to hold each valve into the valve body.
4. Install the valve body check balls into their proper locations.
5. Position the transfer plate onto the valve body.
6. Install the screws to hold the transfer plate to the valve body. Tighten the screws to 4.5 Nm (40 in. lbs.).
7. Install the accumulator pistons and springs into the valve body in the location from which they were removed. Note that all accumulators except the overdrive have two springs. The overdrive accumulator piston has only one spring.
8. Position the accumulator cover onto the valve body.
9. Install the screws to hold the accumulator cover onto the valve body. Tighten the screws to 4.5 Nm (40 in. lbs.).
10. Install the TRS selector plate onto the valve body and the manual valve.
11. Install the solenoid and pressure switch assembly onto the valve body.
12. Install the screws to hold the solenoid and pressure switch assembly onto the valve body. Tighten the screws to 5.7 Nm (50 in. lbs.). Tighten the screws adjacent to the arrows cast into the bottom of the transfer plate first.
13. Position the detent spring onto the valve body.
14. Install the screw to hold the detent spring onto the valve body. Tighten the screw to 4.5 Nm (40 in. lbs.).
15. Install new clutch passage seals onto the valve body, if necessary