Coil packs 1 or 8?

[Unleash-The-Beast]

So I threw an engine code that said cylinder 8 had a misfire. I'm thinking it's the coil pack and I've moved it from cylinder 8 to cylinder 5. My question is this:

If my misfire moves to cylinder 5 and it's only one coil pack should I replace just the one? Or all 8? I'm getting advice from someone else who says I don't need all of them.

FYI - 2015 GT 108,000 miles and it's still going strong, can't feel any performance loss or hear any knocking or anything of the such. I don't track it but I push it pretty hard when I'm driving. Also have a lund tune with an N gauge, I run flex tune most of the time and occasionally E85r.

My thoughts are to replace all of them. My buddy says I only need one. But I defer to all the gear heads here that know way more than me..........

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[Interceptor]

Well that would depend n what type of person you are. Frugal or nervous.

 

[JCFoster]

You could replace that one and keep rolling. The other seven my run forever or start going out one by one.

 

[Elp_jc]

Depends on your mileage. If high, then I'd replace them all... unless you enjoy running on 7 cylinders 7 more times. Ha ha. If you only have 5K miles, then it's probably just a defective one, and I'd only replace the offending one. Up to you.

 

[ORRadtech]

Only one must be replaced but you may benefit from replacing all of them.
On my '12 Edge with 154k I had one go out and replaced just the one. Three months later another went bad. At that point I replaced the remaining 5. There was a noticeable improvement in overall performance. More power and ran a lot more smoothly.

 

[Unleash-The-Beast]

Thanks all for the advice. .

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