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Home >> Ford >> 1979 >> Courier 2.3L Eng, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Exhaust Gas RECIRCULATION (EGR) System >> Testing >> Three Way Solenoid >> 1976-78 Models

1976-78 Models

  1. Disconnect electrical leads from thermo valve and connect jumper wire to thermo valve harness connectors to complete circuit. Turn ignition on.
  2. Disconnect vacuum hose from EGR valve and blow into hose. Check for air discharge from three-way solenoid relief port. If there is no air discharge, replace solenoid valve.
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