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Home >> Mitsubishi >> 2015 >> Lancer Evolution Final Edition >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 39 (Engine Cooling System - Lancer Evolution) >> On-Vehicle Service >> Radiator Cap Opening Pressure Check
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Radiator Cap Opening Pressure Check

WARNING: This page is about a different variant/trim than selected.
NOTE: Be sure that the cap is clean before testing. Rust or other foreign material on the cap seal will cause an improper reading.
  1. Use a cap adapter to attach the cap to the tester.
  2. Increase the pressure until the indicator of the gauge stops moving.

    Minimum limit: 83 kPa (12 psi) 

    Standard value: 93 - 123 kPa (14 - 18 psi) 

  3. Replace the radiator cap if the reading does not remain at or above the limit.
    Fig 1: Checking Radiator Cap Opening Pressure
    G09640895Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.