2000 Ford Expedition

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

PO401 - egr flow insufficient
Mar 28, 2010 at 2:01 PM
Advertisement
Avatar
JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
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 10:20 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.