Car Problem Reports

Ford F-150 Engine Runs Rough at Idle

Ford F-150 Problem
26 Reports
Me Too

Model Years Affected: 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2006, 2007

Exhaust & Emissions Affected: 5.4L V8

Average Mileage: 146,117 mi (50,000 mi - 263,456 mi)


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.

  • Visitor, , 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 This
  • Visitor,

    clean out the EGR with cimtool.

    Flag This
  •  Rookie

    Having a problem with fuel smell rough idle when stopped but idles, fuel over load is what it smells like when stopped. The truck starts acting up after a good 20 to 25 minutes of driving. act's like

    Flag This
  • Visitor, , 227,000 mi

    Engine starts vary poorly will not idle and then shuts off, and it smells of heavy gas fumes in the exhaust. Truck was fine yesterday and then this happened.

    Flag This
  •  Rookie

    Rough idle with AC on

    Flag This
  • Visitor, , 180,000 mi

    Runs ruins rug at idle. And when ac on

    Flag This
  • dneth5, , 206,000 mi

    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 This
  • Visitor, , 124,847 mi

    Truck runs ide and rough driving at the first 2 miles then after 45 miles you can feel the rough running condition.

    Flag This
  • Visitor, , 164,000 mi

    runs rough at idle rpm is around 800 seems low never had egr checked

    Flag This
Ask a Question