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Home >> Mitsubishi >> 1997 >> Eclipse Base, Automatic >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Component Testing >> Vacuum Pump

Vacuum Pump

  1. Disconnect vacuum hose from vacuum pump. Connect a vacuum gauge to vacuum pump. Disconnect vacuum pump harness connector.
  2. Using jumper wires, connect battery voltage to pump harness connector terminal No. 1 and connect terminals No. 2 and 3 to ground. Connect another jumper wire between ground and terminal No. 4. Vacuum pump should start and vacuum gauge should read about 15.7 in. Hg.
  3. Disconnect jumper wire from vacuum pump terminals No. 2 and 3. Vacuum gauge should read 6 in. Hg or less. If vacuum pump does not operate or vacuum readings are not as specified, replace vacuum pump.
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