2000 Ford Expedition EGR system code PO104

2000 FORD EXPEDITION
120,000 MILES • V8 • 2WD • AUTOMATIC
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DUKER
  • MEMBER
  • 1 POST
There is plenty of vacuum to the EVR but it is never applies vacuum to the EGR. Where does this signal come from for the EVR to apply vacuum to the EGR valve? I have replaced EGR valve, pressure sensor, and EVR. Thanks
Feb 20, 2010 at 4:43 AM
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DOCFIXIT
  • ✓Experienced Mechanic
  • 18,828 POSTS
Signal comes from PCM wiring O.K. connection good?
Feb 20, 2010 at 5:04 AM
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