2000 Ford Expedition

2000 FORD EXPEDITION
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RACHIDE ANDERSON
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  • 1 POST
Electrical problem
2000 Ford Expedition V8 Four Wheel Drive Automatic

PO401 - egr flow insufficient
Mar 28, 2010 at 7:01 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
Remove the egr from the intake and check for carbon build up. If it is there make sure to properly clean it and make sure the valve is working. Also, make sure the intake is clean where the EGR is mounted. And make sure there is vacuum to the EGR.

Let me know what you find.
Mar 29, 2010 at 3:20 AM
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