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EGR Solenoid Valve

  1. Make sure vacuum is present at port "C" of solenoid. See Figure . Remove vacuum connector from ports "A" and "B" of solenoid. Connect vacuum gauge to port "B". Start engine and run at idle. Vacuum should not be present at port "B".
  2. Disconnect electrical connector from solenoid. Vacuum should now be present at port "B". Stop engine. Reconnect electrical connector at solenoid. Remove vacuum gauge and reconnect vacuum hoses.
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