Question about 2002 Ford Taurus

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2002 Ford Taurus V6 DOHC engine is running rough. Worse when in gear or if heat or a/c is on. Runs better if in neutral. Says misfire cylinder 3. Replaced spark plugs, wires, and fuel filter, no better. Also happens when going up an incline but if you let of the gas and repress the pedal it gets better.

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I would suggest replacing the coil pack. Thanks and good luck with your repair.

Posted on Nov 12, 2009

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1999 Ford Taurus 3.0L V6 24V DOHC Duratec Engine Engine was misfiring, plugs replaced, KAM erased, Idles Slow and Rough. OBDII says misfire ocurring on cyl 4 & 5. Codes P0300, P0304 and P0305


i would check the plug wires and the coils you check the plug wires for bad spots at night start the motor up and look at the plugs if you see a spark arch out the wire and to a peace of metal then the plug wires need to be replace.

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Try swapping the injector on that cylinder with the one next to it and see if the misfire changes to the other cylinder.If it does then you have a plugged or bad injector.It it still stays on that same cylinder then check compression on the number 6 cylinder.Let me know what you find out.Good luck.

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1 Answer

05 taurus rough idle when cold then runs fine. code P0308 was pulled. No other issues, car runs great beside that. I know 308 means multi cylinder cross fire. So it has to be something common to all...


it cant be cross fire it is misfire, cross fire ocurs in engines that use a distributor, the code is from one or more cylinders misfiring check for a bad set of cables or a faulty spark plug or coil

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1 Answer

Correct firing order/plug wires/distributor cap


If it's the 3.0L V6 Vulcan or Duratec engine the firing order is 1-4-2-5-3-6. The rear bank cylinder head is 1-3 with 1 on the passenger side and 3 on the driver's side. The front bank cylinder head is 4-6 with 4 on the passenger side and 6 on the driver's side.

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1 Answer

My 2002 taurus dohc runs rough at idle, worse if i turn ac on!


The a/c makes it worse because you are asking the engine to pull a load missing one cylinder. If you have alternate transport or like working on a hot engine you can take number 3 wire to the autoparts and get one wire to match length. You may want 1 plug in case wire doesn't help.

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1 Answer

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Cylinders 2, 3 have coil packs change out located on back of motor. you will have to take the upper intake off to get to them. Very easy to do. #2 center plug on back of motor #3 is on drivers side of motor. Crank sensor you will have to remove tire on car passenager side next look at crank pulley on left side of block you will se two wires the heat cover running to it.
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2 Answers

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the back side is from front(passenger side) of engine 1,2,3
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2 Answers

2002 Ford Taurus SEL, DOHC Misfiring


Disconnect the battery completely, try turning the key with the battery disconnected. Put the battery back together. The check engine light should be off now..

Jan 31, 2009 | 2002 Ford Taurus

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