Operation CHARM: Car repair manuals for everyone.

Main Control Valve Body - Removal/Installation





Removal

1. Raise vehicle on a hoist so transmission and pan is accessible. Position suitable safety stands under vehicle.






2. Loosen pan attaching bolts and drain fluid from transmission. If the same fluid is to be used again, filter through a 100 mesh screen. Re-use fluid only if it is in good condition.

3. Remove transmission fluid pan attaching bolts, pan and gasket.

4. Remove filter screen and O-rings.

5. Remove low-reverse servo cover, piston, spring and gasket.

6. Disconnect two wires at the converter clutch solenoid and the two wires at the 3-4 shift solenoid.

7. Remove bolts from the control valve body. Note that the bolts are of different lengths and their locations are different from the bolt locations on other automatic transmissions. Carefully ease the body from the case while unlocking and detaching the selector lever connecting rod.

Installation






1. Clean and inspect the valve body prior to installation as detailed in this section.

2. Attach and lock the selector lever connecting rod (Z-Link) to the manual valve and ease control body into the case.

CAUTION: Use care not to bend selector lever connecting rod (Z-Link).

3. Insert correct length bolts, finger-tight, in holes A and B to position control body to case.

4. Insert all remaining bolts and 3-4 shift solenoid retainer (correct length) except filter screen bolt and tighten to 8-11 N-m (71-97 in-lb).

NOTE: 3-4 shift solenoid retainer must be on outside of metal inner retainer.

5. Remove the bolt from hole A and install detent spring to bolt, then reassemble and tighten A and B locations to 8-11 N-m (71-97 in-lb).

6. Install low-reverse servo cover, piston, spring and gasket.

7. Connect the converter clutch solenoid wires.

8. Clean filter screen with solvent. Then install filter screen O-ring and filter screen.

9. Using a new gasket, install fluid pan. Tighten retaining bolts to 11-13 N-m (97-115 in-lb).

10. Remove safety stands and lower vehicle. Fill transmission with proper grade and quantity of fluid.

Pour in 2.8L (3 quarts) of fluid. Run engine and add fluid as required.

11. Operate vehicle and check for leaks.