Oil Pressure High or Low

High Pressure

1. Vacuum line or fittings leaking.

2. Vacuum modulator.

3. Modulator valve.

4. Pressure regulator.

5. Oil pump.

Low Pressure

1. Vacuum line or fittings obstructed.

2. Vacuum modulator.

3. Modulator valve.

4. Pressure regulator.

5. Governor.

6. Oil pump.