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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
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I have a 2002 ford f 250 5.4Having problem with the number 3

Customer Question

Hi I have a 2002 ford f 250 5.4*****Having problem with the number 3 cylinder
I put in a new coil pack etc every two months it starts missing. I did a leak down test every thing is fine. So I am guessing some thing might be happening be fore the coil pack. Two mechanics have looked at it, but no answer for why.Mike
Submitted: 11 months ago.
Category: Ford
Expert:  Ron replied 11 months ago.

Hello. My name is ***** ***** I am happy to assist you today. Give me just a moment to review your post, and I'll be right back with the help you need.

Expert:  Ron replied 11 months ago.

Mike, has the coil driver wire from the PCM (computer) to the #3 coil been checked to be sure its not shorting to ground ?