Line Pressure Test

Road test vehicle to bring transmission to operating temperature. Connect pressure gauge to front plug on transmission. See Fig 1. Place gauge so that it is visible from driver's seat. Connect tachometer to engine.

Fig 1: Transmission Case Pressure Test Port Locations
Courtesy of VOLVO CARS OF NORTH AMERICA.
Start engine. Adjust idle speed to 900 RPM (if necessary). Apply brake pedal. Place selector in "D". Note pressure reading. Pressure should be about as shown in the LINE PRESSURE SPECIFICATIONS table.
Repeat line pressure test with selector lever in "R". Pressure should be about as shown in LINE PRESSURE SPECIFICATIONS table.

LINE PRESSURE SPECIFICATIONS (AW-55)

Application	psi (kg/cm² )
In "D"	57-64 (4.0-4.5)
In "R"	82-97 (5.8-6.8)