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rpmdiag, Tech and Instructor
Category: Ford
Satisfied Customers: 7740
Experience:  Since 1975
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Number 3 is misfiring and code shows E & F COP, we had all

Customer Question

number 3 is misfiring and code shows E & F COP
JA: Have you seen the misfire code before? Has the car been stalling?
Customer: we had all six COPs replaced at Firestone
JA: What is the model/year of your Ford?
Customer: 2010 escape
JA: Are you fixing your Escape yourself? What have you tried so far?
Customer: bought a code reader...wanted to check the wiring going to cylinder 3
JA: Anything else you want the mechanic to know before I connect you?
Customer: I guess least I know what the problem is. Wondering if I should replace the plugs first.
Submitted: 9 months ago.
Category: Ford
Expert:  rpmdiag replied 9 months ago.

Hi, I'm Ron and I will be helping you today.
Stand by for a moment while I prepare your answer.

Expert:  rpmdiag replied 9 months ago.

If the plugs and coils are all good,then that leaves a fuel injector problem.Either the injector is bad of not firing.

You may also want to check cylinder compression for a possible valve issue.

Thanks, Ron