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What is your question?
It just started to misfire. Not sure where coils A and C are located.

2 Replies
Hello, The 3.0L V6 used in the Taurus, and several other vehicles, is known to have radio frequency interference issues with the spark plugs, coils, and PCM. When these codes pop up, the coils need to be tested, and the spark plugs replaced. The worst piece of the pie is that the PCM is often destroyed when this occurs, so you way want to plan for/expect that as the ultimate result. You will need a full service shop with Ford factory software if the PCM is faulty. Here is a list of facilities in your area, and let me know of any questions or issues you have. Thanks. http://repairpal.com/ford-within-10-miles-of-friendship-new-york-14739
Coil A or C are circuit references (PO351) not an actual part .. Test ignition coil driver circuit using a noid light .. IF light flashes > replace ignition coil.. In this case you should concentrate on coil for cylinder # 3 (PO353) .. Now, IF you're not familiar with any of the information or suggestions posted here, take it in for repairs as previously suggested.