Durango 4WD V8-5.9L VIN Z (1998)
Valve Body: Adjustments
42/44RE (A500) 4-Speed
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
Line Pressure Adjustment
Measure distance from the valve body to the inner edge of the adjusting screw with an accurate steel scale.
Distance should be 33.4 mm (1-5/16 inch).
If adjustment is required, turn the adjusting screw in, or out, to obtain required distance setting.
NOTE: The 33.4 mm (1-5/16 inch) 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
Throttle Pressure Adjustment
Insert Gauge Tool C-3763 between the throttle lever cam and the kickdown valve stem.
Push the gauge tool inward to compress the kickdown valve against the spring and bottom the throttle valve.
