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Pressure Test With Transmission In Overdrive (4th Gear)

WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 1996 Dodge Ram Wagon, 1996 Dodge Ram Van, 1996 Dodge Pickup, 1996 Dodge Dakota, and 1996 Dodge Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. This tests line pressure at overdrive clutch in 4th gear. Reconnect throttle valve and shift cables or linkages on manual selector lever and throttle valve lever on transmission (if removed). Remove pressure tap plug and install 300 psi (21 kg/cm2 ) pressure gauge in overdrive clutch pressure tap. See Figure .
  2. Lower vehicle, leaving wheels approximately 12" from floor. Ensure overdrive switch is in the ON position. Start engine. Place gearshift in "D" (Drive). Gradually increase engine speed until a 3-4 shift occurs and note pressure gauge reading in 4th gear.
  3. Pressure should be 68-72 psi (4.7-5.1 kg/cm2 ) at closed throttle and increase to 90-120 psi (6.3-8.4 kg/cm2 ) at 1/2 to 3/4 throttle. Pressure will increase to more than 130 psi (9.1 kg/cm2 ) at full throttle. Remove pressure gauge. Install and tighten pressure tap plug to specification. See TORQUE SPECIFICATIONS  .
NOTE: Transmission governor pressure is usually checked if shift speeds are incorrect or transmission will not upshift or downshift.
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