Park - Engine Running

In this range, the torque converter is filled and all clutches and the band are released. The transaxle is in Park, and line pressure is regulated to approximately 70 psi.

With selector lever in Park position, oil from the pump is directed to the following:

1. Pressure regulator valve.

2. Converter and lubrication system.

3. Pump slide.

4. Manual valve.

5. Pressure relief valve.

6. Line pressure tap.

Oil flows from the pump to the pressure regulator valve which regulates pump pressure. When pump output exceeds the demand of line pressure, oil from the pressure regulator valve is directed to the converter feed passage to fill the converter. Converter return oil flows to transaxle cooler, and oil from the cooler goes to the transaxle lubrication system.

Oil is also directed from the pressure regulator valve to the pump slide to decrease pump output to the pressure of the regulator valve spring force, or 70 psi. Line pressure acts on the pressure relief valve which will relieve any pressure above 300-450 psi.

Line pressure at the manual valve is available for use in other drive ranges.