× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
2003 Ford Expedition XLT 5.4L Poor Idle Quality, Misfire
Posted to Ford Driveability on 2/4/2010 7 Replies

I have done a lot of searching on this and not finding anything I can use.

Initial complaint from customer was a rough idle, and rough acceleration. New customer, so I had no maintenance history and customer didn't know either.

I pulled codes and retrieved ...

7 Replies Received (View Replies)

  Related Documents & Media  2003 Ford Expedition XLT

 
Message Closed w/FIX

car Vehicle Data

2003 Ford Expedition XLT

VIN 1FMFU188L8
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire
OccursAlways

Trouble Codes

P0401EGR System Insufficient Flow Detected
P0402Excessive EGR System Excessive Flow Detected
Message Closed w/FIX

car Vehicle Data

2003 Ford Expedition XLT

VIN 1FMFU188L8
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire
OccursAlways

Trouble Codes

P0401EGR System Insufficient Flow Detected
P0402Excessive EGR System Excessive Flow Detected