Valve Body: Service and Repair

REMOVAL PROCEDURE





1. Disconnect the battery negative cable assembly from the battery negative terminal.

CAUTION: Before removing or installing any electrical unit or when a tool or equipment could easily come in contact with live exposed electrical terminals, disconnect the negative battery cable assembly to help prevent personal injury and/or damage to the vehicle or components. Unless instructed otherwise, the ignition switch must be in the OFF or LOCK position.

2. Remove the bottom pan and seal, the scavenger screens, and the lip seals. Refer to SCAVENGE SCREENS AND SEALS REPLACEMENT.





3. Disconnect the transmission wire harness connectors from the pressure switch and the shift solenoids A and B. Use a small screwdriver.





4. Remove the manual valve linkage clip with a small screwdriver.
5. Remove the wiring harness from the retaining clips on the lower controls assembly.





6. Remove the oil transfer plate.
7. Remove the bolts and the 2 nuts. Do not remove the 5 bolts shown on the lower channel plate.
8. Remove the lower channel plate and the valve body and accumulator assembly from the case.

INSTALLATION PROCEDURE





1. Position the low reverse band, using a piece of shim stock (shim thickness 0.508-0.762 mm (020-0.030 in).
2. Place the lower controls against the forward support studs.
3. Hand-start the bolts into the channel plate. Bolts without a flange are next to the transfer plate.





4. Remove the shim stock.
5. Place the oil transfer plate over the open gasket area. Hand-start the bolts to hold the plate in place. Note the installation order of the alignment bolts.
6. Install the 2 nuts on the forward support studs.
- Tighten the bolts and nuts to 8 Nm (71 inch lbs.).

NOTICE: Always use the correct fastener in the correct location. When you replace a fastener, use ONLY the exact part number for that application. The manufacturer will call out those fasteners that require a replacement after removal. The manufacturer will also call out the fasteners that require thread lockers or thread sealant. UNLESS OTHERWISE SPECIFIED, do not use supplemental coatings (paints, greases, or other corrosion inhibitors) on threaded fasteners or fastener joint interfaces. Generally, such coatings adversely affect the fastener tightening sequence and specifications. Following these instructions can help you avoid damage to parts and systems.

7. Connect the manual valve to the detent lever. Route the harness over the spacer plate rib and the detent lever. Snap into the retaining clips on the lower controls assembly.
8. Install the transmission wire harness connectors to the pressure switch and the shift solenoids A and B.
9. Install the bottom pan and seal, the scavenger screens, and the lip seals.
10. Connect the battery negative cable assembly to the battery negative terminal.
- Tighten the terminal bolt to 15 Nm (11 ft. lbs.).
11. Add DEXRON-III transmission fluid as required. Refer to FLUID FILTER REPLACEMENT and to FLUID CAPACITY.
12. If there was a complete fluid change, reset the transmission oil life indicator. Refer to ELECTRONIC COMPONENT DESCRIPTION.