Removal
NOTE:- After transmission is removed for a major overhaul, it is important to completely clean all transmission components, including torque converter , transmission cooler, cooler inlet tube, main control valve body, clutches and all coasting booster valve shuttle balls aver any transmission service that generates contamination. These contaminants are a major cause for recurring transmission concerns and must be removed from the system before the transmission is returned to service.
- The cleaning of debris from the direct clutch check ball is often omitted. This omission can lead to a repeat servicing of the transmission.
- Follow cleaning and flushing procedures for transmission components, including the direct clutch check ball.
PROCEDURE
1. Disconnect the battery ground cable.
NOTE: When the battery has been disconnected or reconnected, some abnormal drive symptoms may occur while the Powertrain Control Module (PCM) relearns its adaptive strategy. The vehicle may need to be driven 16 km (10 miles) or more to relearn the strategy.
2. Raise vehicle on a hoist.
3. Drain automatic transmission fluid.
4. Remove exhaust system as necessary for transmission removal.
5. Remove the converter access cover and adapter plate bolts from the engine oil pan.
6. Remove the four flywheel-to-converter retaining nuts by placing a 22 mm socket and breaker bar on the crankshaft pulley retaining bolt. Rotate the crankshaft pulley clockwise (as viewed from the front) to gain access to each of the nuts.
CAUTION: Care should be taken not to damage cooler lines.
NOTE: Never rotate the crankshaft pulley in a counterclockwise direction (as viewed from the front).
7. Remove driveshaft.
8. Disconnect and remove the Vehicle Speed Sensor (VSS) from the extension housing.
9. Place a drain pan under the torque converter. With the wrench on the crankshaft pulley retaining bolt, turn the torque converter to gain access to the converter housing access plug and remove. After the fluid has been drained, install the converter housing access plug.
10. Carefully disconnect shift cable from transmission manual control lever at transmission by removing adjusting nut.
11. Disconnect the transmission wiring harness connectors.
12. Remove starter-to-converter housing retaining bolts and position starter motor out of the way.
13. Position a transmission jack under the transmission and raise it slightly.
14. Remove the engine rear support-to-crossmember bolts.
15. Remove the crossmember-to-frame side support retaining bolts and remove the engine and transmission support insulator and engine and transmission support and engine damper mounting body bracket.
16. Lower the jack under the transmission and allow the transmission to hang.
17. Position a jack to the front of the engine and raise the engine to gain access to the two upper converter housing-to-engine retaining bolts.
18. Disconnect the cooler tubes at the transmission. Plug all openings to keep dirt out.
19. Remove the lower converter housing-to-engine retaining bolts.
20. Remove the transmission fluid filler tube.
21. Secure the transmission to the jack with a safety chain.
22. Remove the two upper converter housing-to-engine retaining bolts. Move the transmission to the rear so it disengages from the dowel pins and the torque converter is disengaged from the flywheel.
NOTE: If the transmission is to be removed for a period of time, support the engine with a safety stand and wood block.
23. Install Torque Converter Holding Tool T97T-7902-A to prevent torque converter from falling out. Lower the transmission from the vehicle.
24. Remove Torque Converter Holding Tool.
25. Remove torque converter from transmission.