EGR Pressure Transducer
- For EGR pressure transducer location, see appropriate vacuum diagram in VACUUM DIAGRAMS article. Remove upper cap from pressure transducer. Remove filter and clean with compressed air. Reinstall filter and upper cap. Remove EGR pressure transducer.
- Using low air pressure, apply air to one vacuum hose port and plug opposite vacuum hose port. Air should flow freely through filter housing.
- Connect a hand-held vacuum pump to one vacuum hose port. Connect vacuum gauge to opposite vacuum hose port. Using low air pressure, apply air to bottom port while applying vacuum with vacuum pump. Vacuum should be indicated on gauge and should hold. When low air pressure is removed from bottom port, vacuum gauge indicator should return to zero. Replace EGR pressure transducer if operation is not as specified.