2002 Mercury Sable 24V DOHC Error Code

45

Asked by Mar 18, 2016 at 10:45 PM about the 2002 Mercury Sable LS

Question type: Maintenance & Repair

I have a 2002 Mercury Sable 24V DOHC  with 62K miles on it.  The engine light came on this morning - first blinking and now is on as soon as I start the car.  Took the car to Autozone and had them run an error code check.  Returned a P0305 - Cylinder #5 Misfire detected.  Is this a spark plug issue or an engine coil issue.  Looked up the engine coil and it looks like there are 3 bolts holding in place so it looks pretty easy to replace.  Is that true or should I take to the shop to have them do it.

2 Answers

242,265

You can do it yourself. It could be the plug, the coil or the wiring. At 62K, I would have the plugs changed out, and replace that one coil, not all that expensive. But you can swap that coil with another and see if you get other codes, like misfire on #4 that you swapped the bad coil to. That way you know it's the coil and not the plug. HTH's

1 of 1 people found this helpful.
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I looked at the engine coil at autozone and O'reilly auto parts and they want about $82 for the part that has all 6 coils. My questions are 1) is there a place I can get them a little cheaper even if I order it online and 2) where are the coils located on the engine? Are they under the black panel right at the front of the motor?

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