Mazda MX-3 silhouetteMX-3

PRC SOLENOID VALVE

F2-120prose procedure
Continued from F2-119

Inspection

On-vehicle

  1. 1
    Start the engine and run it at idle.
  2. 2
    Disconnect the vacuum hose from the pressure regulator. Verify that vacuum is felt.
    Engine bay drawing of a hand disconnecting the vacuum hose from the pressure regulator to verify that vacuum is felt.
  3. 3
    Ground the PRC solenoid valve terminal A with a jumper wire. Verify that no vacuum is felt.
    Engine bay drawing showing the PRC solenoid valve terminal A being grounded with a jumper wire. Callout (A) marks the terminal.
  4. 4
    If vacuum exists, check the PRC solenoid valve.

Solenoid valve

  1. 1
    Disconnect the vacuum hose from the PRC solenoid valve and vacuum pipe.
    Drawing of the PRC solenoid valve with vacuum hose, air filter and ports. Callouts: AIR FILTER, (A) at port A, PORT (B).
  2. 2
    Blow through the PRC solenoid valve from port A.
  3. 3
    Verify that air flows from port B.
  4. 4
    Disconnect the PRC solenoid valve connector.
  5. 5
    Connect battery positive voltage and a ground to the terminals of the PRC solenoid valve.
    Drawing of the PRC solenoid valve with battery positive voltage applied to the terminals. Callouts: AIR FILTER, (A), APPLY BATTERY POSITIVE VOLTAGE, PORT (B).
  6. 6
    Blow through the PRC solenoid valve from port A.
  7. 7
    Verify that air flows from the valve air filter.
  8. 8
    If not as specified, replace the PRC solenoid valve.
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