Shift Modulator: Adjustments

KICKDOWN SWITCH ADJUSTMENT




1. Loosen ``4-3'' and kickdown switch locknut.
2. Depress accelerator pedal fully.
3. Adjust switch stopper to contact the accelerator pedal, then tighten locknut.




NEUTRAL SAFETY SWITCH ADJUSTMENT




1. Shift selector lever to N range.
2. Raise and support vehicle.
3. Remove transmission manual lever retaining nut and lever.
4. Loosen three neutral switch attaching bolts and remove screw from alignment pin hole at the bottom of the switch.
5. Rotate switch and insert an alignment pin through alignment pin hole and into hole in internal rotor. The alignment pin should be 0.059 inch (1.5 mm) diameter for 1984 B2000 and B2200 models, or 0.078 inch (2.0 mm) for all other models.
6. Tighten two switch attaching bolts and remove alignment pin.
7. Reinstall alignment pin hole screw in switch body.
8. Position transmission manual lever on manual lever shaft and secure with flat washer and nut.
9. Check switch for proper operation. The engine should start only with transmission selector lever in N or P.




VACUUM DIAPHRAGM ROD




Excessive shift shocks and gears not properly shifting often indicate a vacuum diaphragm malfunction. If this occurs, check vacuum diaphragm as follows:
1. Remove vacuum pipe to check for transmission fluid.
2. Check that diaphragm rod moves when vacuum is applied to vacuum diaphragm.
3. If problem is found, replace rod. Replacement rods are available in lengths of 1.1418 inch (29 mm), 1.1614 inch (29.5 mm), 1.1811 inch (30 mm), 1.2008 inch (30.5 mm) and 1.2205 inch (31 mm).