LEMON Manuals: Even more car manuals for everyone
Home >> Jeep >> 1983 >> Scrambler Base, 4.2 C, Standard, T4 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Diagnosis & Overhaul - 727, 904, 998 & 999 >> Testing >> Hydraulic Pressure Tests >> Pressure Test (Selector in "1")

Pressure Test (Selector in "1")

  1. Attach 0-100 psi gauges to line and rear servo ports. Operate engine at 1000 RPM. Move selector lever on transmission all way forward ("1" position).
  2. Read pressures on both gauges as throttle lever on transmission is moved from full forward position to full rearward position. Line pressure should read 54-60 psi (3.8-4.2 kg/cm2 ) with throttle lever forward. As lever is moved rearward, pressure should gradually increase to 90-96 psi (6.3-6.7 kg/cm2 ).
  3. Rear servo pressure should read same as line pressure within 3 psi (.2 kg/cm2 ). This test measures pump output, pressure regulation and condition of rear clutch and rear servo hydraulic circuits.
Fig 1: Transmission Case Right Side Pressure Test Ports
G96B15645Courtesy of CHRYSLER MOTORS
scientia non olet · About LEMON Manuals