Rough Idle Caused By EGR Sensor Sticking on Ford F-150

Problem Description and Possible Solution

The Ford F-150 is known for intermittent rough idling, which may be accompanied by illumination of the check engine light, and poor fuel mileage.

This may be caused by the EGR sensor sticking, causing the EGR valve to stay slightly open, and diagnostic testing must be conducted.

The EGR valve and sensor must be replaced together to correct this concern.


Problem Data
RepairPal Verified
Average mileage: 143,474 (11,900–231,057)
Exhaust & Emissions affected: 5.4L V8
3 model years affected: 1997, 2001, 2004
21 people reported this problem
Viewing 1 - 6 of 6 comments
rough running n park run good going down the road coming to a stop start running rough again
missing went warming up to
After I have driven a while and stop at a stop light the truck would idle rough. We could put it in neutral and it would subside. I have had the egr tube replaced and will see if that takes care of it.
im not sure if my problem is this or not but lately my truck will stall if it is ideling or i am slowing down. It usually only happens also if i have the air conditioning on.
Motor starts good but idles rough and has no power until warm but still missing. Codes say plugs#2,4,6,8, too lean and 02bank1 bad. I changed plugs and sensor. Last week I changed EGR valve too but not EGR sensor, where is it?