5.4L Coil Pack
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New User
Joined: Sep 2002
Posts: 2
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From: Windsor Canada
5.4L Coil Pack
Just before my warrentee ran out I had a bad miss in one of the cylinders, followeed shortly thereafter by the "Check Engine" light. Dealership replaces coil pack and plug under warrentee.
Funny thing happened around 2x the warentee milage. I just started getting this miss in one of the cylinders.
Is there any way to easily test for the failed coil pack. Does anyone know the Ford Service # for it. Better still, is this even worth replaceing myself.
Funny thing happened around 2x the warentee milage. I just started getting this miss in one of the cylinders.
Is there any way to easily test for the failed coil pack. Does anyone know the Ford Service # for it. Better still, is this even worth replaceing myself.
Post Fiend
Joined: Feb 2000
Posts: 11,496
Likes: 6
From: Kansas
5.4L Coil Pack
The coil packs are easy to replace - except for the back cylinders where it is a bear to get to them. A code reader would help you out a bunch since you could find the pack that was bad.
Post Fiend
Joined: Feb 2000
Posts: 11,496
Likes: 6
From: Kansas
5.4L Coil Pack
One little bolt holds that coil pack in place. Once you know which plug/pack it is, they are very easy to replace. If you have a doubt try the front one on the right side (5.4L). You will need a air compressor. You must blow out the hole where the plug sits to make sure no dirt or rocks fall into the engine.
Junior User
Joined: Jul 2002
Posts: 97
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From: Florida
5.4L Coil Pack
Had this happen on my van. Code indicated #7 wasn't firing. Thought it might be a bad connection so I cleaned and re-connected the coil. Ran fine for a week, then came back. This time I swapped #7 and #5 to see if the problem moved to #5. That was almost a year ago and the miss never returned.
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Post Fiend
Joined: Jan 2007
Posts: 18,157
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From: Stanton DE
The link above is a great deal and I run them on my truck.
It was recommended to me to get the set for the V10 so you have 2 extras when you buy them.
I'm glad I did because 1 was bad out of the 8 I put on. Instead of messing with sending one back I just put one of the extras on and now I still have one extra good one for another time.
It was recommended to me to get the set for the V10 so you have 2 extras when you buy them.
I'm glad I did because 1 was bad out of the 8 I put on. Instead of messing with sending one back I just put one of the extras on and now I still have one extra good one for another time.
Post Fiend
Joined: Jan 2007
Posts: 18,157
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From: Stanton DE
There no better then the stock Motorcraft!
Same as the cheep ebay ones basically. Just with more hype/BS...lol
Postmaster
Joined: Oct 2009
Posts: 3,432
Likes: 7
I agree, the Accels are painfully bad, the MSDs are ok, but remember, they can't be better if they are cheaper. In coils, you get what you pay for. I would pass on the eBay ones, and replace the one(s) that have failed with OE Motorcraft coils.
Junior User
Joined: Apr 2005
Posts: 80
Likes: 0
When you check your codes at the local big box parts store (or on your own scanner) the last number of the misfire code will be the cylinder. The back two are a PITA as mentioned, but the others are remove the one 8-10mm bolt (can't recall) unplug the electrical hook up, pull it off and put a new one on.