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Old 05-01-2010, 04:23 AM   #1 (permalink)
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Default Coil pack replacement.

I'm going to be replacing the plugs on my 04 6s 3.0 with 85000 miles. My question is should I replace the coil packs while doing this. I haven't had any problems with the original ones but if I'm going to be taking them off to replace the plugs this would be the time to do it.

Where would be the best place to order oem coils if I do replace them.
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Old 05-01-2010, 06:17 PM   #2 (permalink)
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You dont need to replace them that often. Only when they go bad.
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Old 05-05-2010, 12:55 PM   #3 (permalink)
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I have seen reference to "coils" and "coil packs" is there a difference?
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Old 05-05-2010, 04:24 PM   #4 (permalink)
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Yes, and no. Coil refers to a singular unit, usually combined with a distributor cap and rotor button to distrbute the spark to the plugs. Coil pack usually has more than one per unit, usually on a 4 cyl that utilizes batch firing (fires more than one cyl at a time). For a coil-on-plug ignition like on the 6, we have 6 single coils that are fired by the ECU to ignite the plug it sits on top of.
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Old 05-06-2010, 09:03 AM   #5 (permalink)
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My tight budget is pushing me toward Oreilly Auto Parts for their coils which are $45 Each. But i'm wondering if i could buy three for now for the back three spark slugs since they would be the hardest to get to and keep the stock front three until they go bad, but replacing all six spark plugs with no prob
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Old 05-06-2010, 11:24 AM   #6 (permalink)
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If they arent bad, dont replace them. Its not necessary....
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Old 05-06-2010, 06:29 PM   #7 (permalink)
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i just heard they go bad and mine been on since the car was new..present mileage 96,000+i'll be needing headers too since the cats go bad as well
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Old 05-06-2010, 07:08 PM   #8 (permalink)
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My wifes Lincoln is a 98, and only had one go bad due to some leakage that we never found the source of, and never occurred since. It has 8 at $70 a pop...

Since i havent looked at ours yet, do these cars come with manifolds or headers from the factory? I would think replacing the cat with a new one, or a test pipe would be much cheaper.
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