Line Pressure Check Procedure
LINE PRESSURE CHECK PROCEDUREThe AW 50-40LE Automatic transaxle uses a vant type oil pump to produce hydraulic pressure, and a transaxle pressure control solenoid to control that pressure at the pressure regulator valve, after it leaves the pump. Line pressure are calibrated for 2 sets of gear range Drive and Reverse. This allows the transaxle line pressure to be appropriate for different pressure needs in different gear range.
1. Remove the oil pressure test plug on transaxle case and mount oil pressure gauge (KM-498-B).
2. Check the four wheels.
3. Fully apply the parking brake.
4. Start the engine and allow it to warm up at idle.
5. Step down strongly on the brake pedal with your left foot.
6. Shift into "D" or "R" range to measure line pressure.
7. Apply the accelerator pedal with your right foot, and measure the line pressure at the engine speed (stall speed 2250 ± 200 rpm).