Line Pressure Tests
- Make sure engine fluids and ATF are at correct levels. Connect oil pressure gauges to line pressure and 2nd servo release test ports. See Fig 1
. Connect vacuum gauge to monitor intake manifold vacuum. Warm vehicle to operating temperature.
- Block front and rear wheels. Set parking brake firmly. Place selector lever in range to be checked. Note pressure reading on gauge at idle. Apply brake pedal fully and check pressure reading at full throttle (stall speed).
- Ensure pressures are within specifications. See HYDRAULIC PRESSURE SPECIFICATIONS
. Pressure readings should increase steadily as car speed increases under light load. Maximum pressure drop between shift points is 14 psi (.98 kg/cm2
). Excessive pressure drop could be caused by internal leak at servo or clutch seal.
Courtesy of NISSAN MOTOR CO., U.S.A.