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Home >> Mitsubishi >> 1997 >> Montero LS >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Component Testing >> Vacuum Pump

Vacuum Pump

  1. Disconnect vacuum pump connector A-105. Resistance should be 50-60 ohms between terminals No. 1 and 2 and terminals No. 1 and 3. SeeFigure. Ensure solenoid valve makes operating noise when battery voltage is applied between terminals No. 1 and 2 and terminals No. 1 and 3.
  2. If solenoid valve does not make noise, replace vacuum pump assembly. Apply battery voltage and ground between terminals No. 1 and 4, motor should operate. Replace vacuum pump if motor does not operate.