Intermittent rough idle may be caused by the EGR sensor sticking, causing the EGR valve to stay slightly open. The valve and sensor must be replaced together to correct this concern.
Car Problem Reports
Ford F-150 Engine Runs Rough at Idle
Ford F-150 Problem
18 Reports
Model Years Affected: 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2007
Exhaust & Emissions Affected: 5.4L V8
Average Mileage: 132,988 mi (50,000 mi - 263,456 mi)
Verified
-
Visitor, 2003 Ford F-150
clean out the EGR with cimtool.
Flag ThisLike | 2 people like this2 -
dneth5, 1999 Ford F-150, 206,000 miRookie
EGR code verified for free at Advanced Auto Parts, they can check the codes for free but will not clear them. Autozone also provides this service.
Flag ThisLike0 -
Visitor, 2003 Ford F-150, 50,000 mi
At Idle my F-150 5.4L runs with an intermittent roughness. Not noticeable on the tachometer but you can feel it. No codes on the OBD. Going to try engine/plug tune-up.
Flag ThisLike0 -
Rookie
Rough idle with AC on
Flag ThisLike0