Oil Pump Pressure Test

2007 Mitsubishi Endeavor LS, AWDSECTION Oil Pump Pressure Test

Required Special Tools: 

  • MB990662: Power Steering Oil Pressure Gauge
  • MB991548: Power Steering Oil Pressure Gauge Adapter (Pump Side)
  • MB991549: Power Steering Oil Pressure Gauge Adapter (Hose Side)
  1. Disconnect the pressure hose from the oil pump, and then connect special tools MB991548, MB990662 and MB991549.
  2. Bleed air, then turn the steering wheel several times while the vehicle is not moving so that the temperature of the fluid rises to approximately 50 - 60°C (122 - 140°F).
  3. Start the engine and idle it at 700 +/- 100 r/min.
    Fig 1: Performing Oil Pump Pressure Test
    G04312592Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.