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Juan Crespo
Juan Crespo, Tech Trainer
Category: Ford
Satisfied Customers: 1526
Experience:  A.S.E. Master Technician, Advanced Level, Emissions - Asian, Domestic, & European
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07 mkz burning up #2 ignition coils, new battery, i am

Customer Question

07 mkz burning up #2 ignition coils
JA: Have you checked the battery lately?
Customer: new battery
JA: Are you fixing your MKZ yourself? What have you tried so far?
Customer: i am tuning it for missfire issue and replaced all coils and plugs and 10 min it burnt up # 2 again
JA: Anything else you want the mechanic to know before I connect you?
Customer: no
Submitted: 8 months ago.
Category: Ford
Expert:  Juan Crespo replied 8 months ago.

Hi there.

Most likely, the coil driver inside the Powertrain Control Module (PCM) is stuck on - you can confirm this with a scope or by rigging a LED light.

Ford knows this is an issue and has issued a Technical Service Bulletin (TSB 13-417) to that effect. The repair includes replacing the PCM and all 6 ignition coils.

Please let me know if you have any questions.

Best Regards.