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Engine Coolant Temperature Gauge Unit Check

  1. Drain the engine coolant. (Refer to ENGINE COOLANT .)
  2. Remove the engine coolant temperature gauge unit.
  3. Put the water temperature gauge unit into the hot water in specified temperature, and ensure the resistance is within standard value.
    1. Standard value: 70°C (150°F) 104 +/- 13.5 ohm 

    Reference value: 

    ENGINE COOLANT TEMPERATURE GAUGE UNIT CHECK

    Temperature ResistanceΩ
    50°C 230 +/- 23
    60°C 155 +/- 15.5
    80°C 73+/- 7.3
    Fig 1: Checking Engine Coolant Temperature Gauge Unit
    G02399187Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  4. After inspection, apply specified sealant at threads of water temperature gauge unit, and tighten to the specified torque.
    1. Semi-drying sealant: 3M™ ADD part No.2310 or equivalent 
  5. Refill coolant. (Refer to ENGINE COOLANT .)
    Fig 2: Applying Sealant On Threads
    G02399188Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
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