Installation
INSTALLATION
1. Check condition of O-ring seals on valve body harness connector (Fig. 334). Replace seals on connector body if cut or worn.
2. Check condition of manual lever shaft seal in transmission case. Replace seal if lip is cut or worn. Install new seal with 15/16 deep well socket (Fig. 335).
3. Check condition of seals on accumulator piston (Fig. 336). Install new piston seals, if necessary.
4. Verify that transmission range sensor is NOT installed. Valve body cannot be installed with sensor in place.
5. Place valve body manual lever in low (1 position) so ball on park lock rod will be easier to install in spray.
6. Lubricate shaft of manual lever with petroleum jelly. This will ease inserting shaft through seal in case.
7. Lubricate seal rings on valve body harness connector with petroleum jelly.
8. Position valve body in case and work end of park lock rod into and through pawl spray. Turn propeller shaft to align spray and park lock teeth if necessary. The rod will click as it enters pawl. Move rod to check engagement.
CAUTION: It is possible for the park rod to displace into a cavity just above the pawl sprag during installation. Make sure the rod is actually engaged in the pawl and has not displaced into this cavity.
9. Install accumulator springs and piston into case. Then swing valve body over piston and outer spring to hold it in place.
10. Align accumulator piston and outer spring, manual lever shaft and electrical connector in case.
11. Then seat valve body in case and install one or two bolts to hold valve body in place.
12. Tighten valve body bolts alternately and evenly to 11 Nm (100 in. lbs.) torque.
13. Install new fluid filter on valve body. Tighten filter screws to 4 Nm (35 in. lbs.) torque.
14. Install throttle and gearshift levers on valve body manual lever shaft.
15. Check and adjust front and rear bands if necessary.
16. Connect solenoid case connector wires.
17. Install the transmission range sensor.
18. Install oil pan and new gasket. Tighten pan bolts to 17 Nm (13 ft. lbs.) torque.
19. Lower vehicle and fill transmission with Mopar ATF +4, type 9602, fluid.
20. Check and adjust gearshift and throttle valve cables, if necessary. ADJUSTMENTS - VALVE BODY.
CONTROL PRESSURE ADJUSTMENTS
There are two control pressure adjustments on the valve body;
- Line Pressure
- Throttle Pressure
Line and throttle pressures are interdependent because each affects shift quality and timing. As a result, both adjustments must be performed properly and in the correct sequence. Adjust line pressure first and throttle pressure last.
LINE PRESSURE ADJUSTMENT
Measure distance from the valve body to the inner edge of the adjusting screw with an accurate steel scale (Fig. 337).
Distance should be 33.4 mm (1-5/16 in.).
If adjustment is required, turn the adjusting screw in, or out, to obtain required distance setting.
NOTE: The 33.4 mm (1-5/16 in.) setting is an approximate setting. Manufacturing tolerances may make it necessary to vary from this dimension to obtain desired pressure.
One complete turn of the adjusting screw changes line pressure approximately 1-2/3 psi (9 kPa).
Turning the adjusting screw counterclockwise increases pressure while turning the screw clockwise decreases pressure.
THROTTLE PRESSURE ADJUSTMENT
Insert Gauge Tool C-3763 between the throttle lever cam and the kickdown valve stem (Fig. 338).
Push the gauge tool inward to compress the kickdown valve against the spring and bottom the throttle valve.
Maintain pressure against kickdown valve spring. Turn throttle lever stop screw until the screw head touches throttle lever tang and the throttle lever cam touches gauge tool.
NOTE: The kickdown valve spring must be fully compressed and the kickdown valve completely bottomed to obtain correct adjustment.