How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Ron Your Own Question
Ron, ASE Certified Technician
Category: Ford
Satisfied Customers: 23821
Experience:  23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
Type Your Ford Question Here...
Ron is online now
A new question is answered every 9 seconds

FX4 4x4: I have a 2006 fx4 5.4 Had a miss Change plugs ran

Customer Question

I have a 2006 fx4 5.4 Had a miss Change plugs ran good for 6000 to 8000 miles miss came back Change the boots ran good for 2000 miles miss came back Change coils miss still there slite miss at idle lower rpm miss higher rpm (2200 and up miss is alot less noticeably ?
Submitted: 2 years ago.
Category: Ford
Expert:  A. Penland replied 2 years ago.
Hello and thanks for using JustAnswer.I will try my best to help you with your question.
Did you check the spark plugs when you replaced the boots?
Have you checked for any trouble codes in the PCM (Engine Computer)?