REMOVAL & INSTALLATION
- Disconnect the negative battery cable.
- Raise the vehicle and support safely.
- Drain the fluid from the transmission by removing all the transmission pan bolts except for one on each corner. Loosen the 4 bolts on the corner and drop the oil pan to allow the fluid to drain into a container. When drained, reinstall a few of the bolts to hold the pan in place.
- Remove the converter bottom cover and remove the converter drain plug, to allow the converter to drain. After the converter has drained, reinstall the drain plug and tighten.
- Remove the converter to flywheel nuts by turning the converter to expose the nuts.
Crank the engine over with a wrench on the crankshaft pulley attaching bolt.
- Mark the position of the driveshaft on the rear axle flange and remove the driveshaft. Install a suitable plug in the transmission extension housing to prevent fluid leakage.
- Disconnect the starter cable and remove the starter.
- Disconnect the wiring from the neutral safety switch.
- Remove the mount-to-crossmember and crossmember-to-frame bolts.
- Remove the mount-to-transmission bolts.
- On 1989 vehicles, disconnect the manual rod from the transmission manual lever using grommet removal tool T84P-7341-A or equivalent. On 1990-92 vehicles, disconnect the shift cable from the transmission. If equipped, disconnect the throttle valve cable from the transmission throttle valve lever.
- On 1993-98 vehicles, detach the wiring connectors.
- Remove the bellcrank bracket from the converter housing.
- Position a suitable jack and raise the transmission.
- Remove the transmission mount and crossmember.
It may be necessary to disconnect or remove interfering exhaust system components.
- Lower the transmission to gain access to the oil cooler lines.
- Disconnect the oil cooler lines from the transmission.
- If equipped, disconnect the speedometer cable from the extension housing.
- Remove the transmission dipstick tube-to-engine block retaining bolt and remove the tube and dipstick from the transmission.
- Secure the transmission to the jack with a chain and remove the transmission-to-engine bolts.
- Carefully pull the transmission and converter assembly rearward and lower them from the vehicle.
- Tighten the converter drain plug to 21-23 ft. lbs. (28-30 Nm).
- If removed, position the converter on the transmission and rotate into position to make sure the drive flats are fully engaged in the pump gear.
Lubricate the pilot with chassis grease.
- Raise the converter and transmission assembly.
- Rotate the converter until the studs and drain plug are in alignment with the holes in the flywheel. Align the orange balancing marks on the converter stud and flywheel bolt hole if balancing marks are present.
- Move the converter and transmission assembly forward into position, being careful not to damage the flywheel and converter pilot.
The converter face must rest squarely against the flywheel. This indicates that the converter pilot is not binding in the engine crankshaft. To ensure the converter is properly seated, grasp a converter stud. It should move freely back and forth in the flywheel hole. If the converter will not move, the transmission must be removed and the converter repositioned so the impeller hub is properly engaged in the pump gear.
- Install the transmission-to-engine attaching bolts. Tighten the bolts to 40-50 ft. lbs. (55-68 Nm).
- Remove the safety chain from around the transmission.
- Install a new O-ring on the lower end of the transmission dipstick tube and install the tube to the transmission case.
- If equipped, connect the speedometer cable to the transmission case.
- Connect the oil cooler lines to the right side of the transmission case.
- Position the crossmember on the side supports.
- Position the rear mount on the crossmember and install the attaching bolt/nut.
- Secure the engine rear support to the transmission extension housing.
- Install any exhaust system components, if removed.
- Lower the transmission and remove the jack.
- Secure the crossmember to the side supports with the attaching bolts.
- If equipped, connect the throttle valve linkage to the throttle valve lever. On 1993-98 vehicles, attach the wiring harness connectors.
- On 1989 vehicles, connect the manual linkage rod to the transmission manual lever using grommet installation tool T84P-7341-B or equivalent. On 1990-92 vehicles, connect the shift cable.
- Install the converter to flywheel attaching nuts and tighten to 20-34 ft. lbs. (27-46 Nm).
- Install the converter housing cover.
- Secure the starter motor in place and attach all electrical connections.
- Install the driveshaft, aligning the marks that were made during removal.
- Install the transmission fluid pan bolts and tighten, evenly, to 107-119 inch lbs. (12-13.5 Nm).
- Lower the vehicle.
- Fill the transmission with the proper type and quantity of fluid, start the engine and check the transmission for leakage.
- Adjust the linkage as required.
- Place the selector lever in the OVERDRIVE position, tight against the overdrive stop.
- An 8 lb. weight should be hung on the selector lever to ensure the lever remains against the overdrive stop during the linkage adjustment.
- Loosen the shift rod adjusting bolt.
- Shift the transmission into OVERDRIVE by pushing the column shift rod downward to the lowest position and pulling up 3 detents.
- Make sure the selector lever has not moved from the overdrive stop. Tighten the bolt to 14-23 ft. lbs. (19-31 Nm).
- Check the transmission operation for all selector lever detent positions.
See Figure 1
- Loosen the adjusting stud nut at the transmission shift lever.
- From the passenger compartment, place the steering column selector lever in OVERDRIVE and hold the selector lever in position by placing a 3 lb. weight (8 lb. weight on 1990 vehicles) on the lever.
- Rotate the transmission manual lever clockwise to low and return it 2 detent positions counterclockwise to the OVERDRIVE position.
- Align the flats of the adjusting stud with the flats of the cable slot and install the cable on the stud.
Do not push or pull on the rod while assembling the rod to the stud.
- Tighten the adjusting stud nut and washer assembly to 10-18 ft. lbs. (13-25 Nm).
- Check the shift lever for proper operation.
See Figure 2
- Place the shift lever in the OVERDRIVE position. Hang a 3 lb. weight on the shift lever to make sure it is firmly located on the OVERDRIVE detent.
- Use a small prybar in the slot of the slide adjuster to open the adjuster.
- Move the transmission manual shift lever to the OVERDRIVE position, second detent from the most rearward position.
- Push the slide adjuster closed.
- Check the operation of the transmission in each selector lever position. Make sure the neutral safety switch is functioning properly.
See Figures 3 and 4
- Remove the instrument panel lower trim panel.
- Place the steering column selector lever in the OVERDRIVE position and hold the lever in position by placing a 3 lb. weight (8 lb. weight on 1989-1990 vehicles) on the lever.
- Rotate the adjustment screw located on the right side of the column to align the indicator within the letter "O" on the standard cluster adjustment.
- If equipped with the electronic cluster, align the indicator so that both calibration dots are white when parallel to the steering column centerline.
- Cycle the shift lever through all of the positions and check that the transmission range indicator covers the proper letter or number in each position.
- Install the instrument panel lower trim panel.
See Figure 5
- Set the parking brake and place the shift selector in N .
- Remove the air cleaner cover and inlet tube from the throttle body inlet to access the throttle lever and cable.
- Using a small prybar, pry the grooved pin on the cable assembly out of the grommet on the throttle body lever. Push out the white locking tab.
- Check the plastic block with pin and tab; it should slide freely on the notched rod. If not, the white tab may not be pushed out far enough.
- While holding the throttle lever firmly against the idle stop, push the grooved pin into the grommet on the throttle lever as far as it will go.
- Make sure the throttle lever does not move while pushing the pin into the grommet.
- Install the air cleaner cover and inlet tube.
See Figures 6, 7, 8 and 9
Before any engine throttle valve linkage adjustments can be made, the throttle lever at the carburetor must be positioned at its minimum idle stop. Make sure the engine idle speed is set to specification, then shut the engine off and remove the air cleaner. De-cam the fast idle cam on the carburetor so the throttle lever is against the idle stop or throttle solenoid positioner stop. Adjust the linkage as follows:
Adjust the linkage at the carburetor as follows:
- Make sure the carburetor is set at the minimum idle stop. Set the parking brake and place the transmission in N .
The transmission selector lever must be in N.
- Back out the linkage lever adjusting screw all the way, until the screw end is flush with the lever face.
- Turn in the adjusting screw until a thin shim (0.005 in. maximum), or piece of writing paper fits snugly between the end of the screw and throttle lever.
To eliminate the effect of friction, push the linkage lever forward (tending to close the gap) and release before checking the clearance between the end of the screw and throttle lever. Do not apply any load on the levers with tools or hands while checking the gap.
- Turn in the adjusting screw an additional 3 turns. Three turns are preferred, however one turn is permissible if screw travel is limited.
- If it is not possible to turn in the adjusting screw at least one additional turn or if there was insufficient screw adjusting capacity to obtain an initial gap in Step b, go to Step 2 and adjust the rod linkage at the transmission.
- Adjust the linkage at the transmission as follows:
The rod linkage must be adjusted whenever a new throttle valve control rod is installed.
- Set the linkage lever adjustment screw at approximately mid-range.
- If a new throttle valve control rod is being installed, connect the rod to the linkage lever at the carburetor.
The following Steps involve working in close proximity to the exhaust system. Make sure the exhaust system is allowed to cool before proceeding further.
- Raise and safely support the vehicle.
- Loosen the bolt on the sliding trunnion block on the throttle valve control rod. Remove any corrosion from the control rod and free up the trunnion block so it slides freely on the control rod.
- Push up on the lower end of the control rod to make sure the linkage lever at the carburetor is firmly against the throttle lever. Release the force on the rod; the rod must stay up.
- Firmly push the throttle valve control lever on the transmission up against its internal stop. Tighten the bolt on the trunnion block. Do not relax force on the lever until the bolt is tightened.
- Lower the vehicle and verify that the throttle lever is still against the minimum idle stop or throttle solenoid positioner stop. If not, repeat the linkage adjustment at the transmission.