» » »

Ford Q&A

Ask Your Question

2005 Ford F-150 Question: Check engine light came on yesterday. Engine runs alittle rough.

 

Question

dloewel, 5.4L V8, Hammond, WI, March 29, 2014, 09:38
 Rookie

At highway speeds the check engine light flashes. It is going into the shop on Tuesday just wondering what I'm in for. Thinking maybe O2 sensor but I've read about catalytic converter ?

1 Answer
Flag This
  • Answer #1

    pushrod March 29, 2014, 09:49
    Profile_thumbnail
     Master

    Flashing C.E.L. indicates an engine misfire, most likely a coil on plug (cop) injector or spark plug problem.

    Reply
    Flag This
Answer Ranks