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Old 01-04-2020, 11:22 AM
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Coil packs too?

When changing the plugs on my '15 JKU is it common practice to change the coil packs also? I'll change the boots and gaskets for sure as well as the PCV valve, but not sure coil packs need to be swapped out.

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Old 01-04-2020, 11:27 AM   #2
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Old 01-05-2020, 04:11 PM   #3
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Old 01-05-2020, 04:16 PM
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So at 100,000 miles and still good to go?
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Old 01-05-2020, 04:18 PM   #5
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At 100,000 miles I might just go ahead and change them.
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Old 01-05-2020, 04:49 PM
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At 100,000 miles I might just go ahead and change them.
Stick w/ Mopar brand?
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Old 01-05-2020, 05:53 PM   #7
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Stick w/ Mopar brand?
I would.
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Old 01-06-2020, 03:12 PM   #8
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I am about to change the plugs on my wife's Ford five hundred. Since you got two yesses and two nos I'll tell you what I am going to do. replace the coil packs under the intake manifold. That'll give me three spares for the front if and when I ever need them, and piece of mind knowing the upper intake won't have to be pulled in the near future.
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Old 01-06-2020, 03:43 PM
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I am about to change the plugs on my wife's Ford five hundred. Since you got two yesses and two nos I'll tell you what I am going to do. replace the coil packs under the intake manifold. That'll give me three spares for the front if and when I ever need them, and piece of mind knowing the upper intake won't have to be pulled in the near future.
My thought was really why not? If the top has to come off let's spend the money and replace the easy to access parts. I'm probably going to do the serpentine belt, not sure if it's called for or not, but why not be safe. It'll have 100,000 miles on it. I'd probably look at the oil filter housing too, but that's not leaky and entails a lot more work from what I've read.
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Old 01-06-2020, 03:59 PM   #10
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At $163 for the set of 6, given the time it takes to take the intake off, I'll do it when the time comes for mine.

https://www.moparamerica.com/oem-par...coil-5149168aj
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Old 01-06-2020, 07:06 PM   #11
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If you do change them out, could I snag one of your old ones for a trail spare, just in case.
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Old 01-07-2020, 05:44 PM   #12
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But if you change them, why not upgrade while you do?

https://rippmods.com/products/ripp-h...nce-coil-packs

I would not buy these just to change to them, but if I was changing them, I'd buy these. If that makes sense...
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Old 01-07-2020, 11:16 PM   #13
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But if you change them, why not upgrade while you do?

https://rippmods.com/products/ripp-h...nce-coil-packs

I would not buy these just to change to them, but if I was changing them, I'd buy these. If that makes sense...
Not sure they’re worth the cost. Chrysler probably spent a billion dollars developing that engine. I doubt they miscalculated the energy levels needed to have proper ignition.
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Old 01-09-2020, 10:25 AM   #14
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Not sure they’re worth the cost. Chrysler probably spent a billion dollars developing that engine. I doubt they miscalculated the energy levels needed to have proper ignition.
But the 10-20HP!

Quoted from link below
^^^^^^^^^^^^^^

What is a coil pack? a coil pack is like a large capacitor that generates spark energy for each individual spark plug during each engine revolution. Stock or OEM Coils are weak and don't deliver an efficient amount of energy, they work at a minimum requirement from the factory and perform poorly. The RIPP High Performance Coils are totally redesigned and re-engineered to add an additional 10-20HP! . This translates to better MPG, a more responsive throttle input and over all better driving experience when installed.

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Old 01-09-2020, 10:28 AM   #15
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But the 10-20HP!
You can get that much HP from a No Fear sticker!
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Old 01-10-2020, 02:21 PM   #16
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10-20 hp from just 10% more power than OEM?
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Old 01-10-2020, 10:13 PM   #17
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10-20 hp from just 10% more power than OEM?
I'm sure that's under certain conditions. Like the condition that you have one of their superchargers installed or something like that.

They do happen to be orange however, which is my accent color so for me it's an automatic 5HP increase for everything I add that's orange. YMMV
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Old 01-10-2020, 11:24 PM   #18
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I'm sure that's under certain conditions. Like the condition that you have one of their superchargers installed or something like that.

They do happen to be orange however, which is my accent color so for me it's an automatic 5HP increase for everything I add that's orange. YMMV
My color accent is black, so the OEM is worth 10hp to me!!!
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Old 01-10-2020, 11:30 PM   #19
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Imagine if it were that simple to gain any mpg increase oem’s would be all over it.
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Old 01-11-2020, 12:34 AM   #20
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Quote:
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Imagine if it were that simple to gain any mpg increase oem’s would be all over it.
Yep
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Old 01-13-2020, 12:18 PM   #21
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Imagine if it were that simple to gain any mpg increase oem’s would be all over it.

Sure, for an extra $100 Jeep could advertise 300hp
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Old 01-13-2020, 12:48 PM   #22
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10-20 hp from coil pacs, really.
No one can really believe that,,,,,,,,. can they.
That even made my wife giggle
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Old 01-15-2020, 12:48 PM   #23
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Rock Auto has them for about $1 less each plus you can get a 5% forum discount.
https://www.rockauto.com/en/parts/mo...tion+coil,7060
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Old 01-15-2020, 05:31 PM   #24
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I am going to be changing mine, mainly because I am already changing the plugs as I am going to take things off to get to the oil cooler, so i am already going down to the plugs, and I am sure these are the 115k originals so I would rather do this project once and not have to go back in again
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Old 01-16-2020, 03:54 PM   #25
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I have changed my plugs twice now on my 2013 JKU, once at 100k miles and another time at 140k miles because I had a fuel leak and I had to take things very far apart to replace the fuel line. I did NOT change the coil packs and the Jeep still runs great. My previous vehicle was a 2003 Toyota Tacoma. It was 10 years old with 200k miles when I traded it in and the coil packs were original. My wife's 2006 Toyota Highlander still has the factory coil packs. My point is they last a very long time. Why replace a part that works fine? Plus, they are $35 each x 6 ($210 for all 6).
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Old 01-17-2020, 02:25 PM   #26
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I am in the camp of not replacing coils unless they are broken. Worst thing you can do is take OEM out and put in aftermarkets in. They never seem to last long.
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Old 01-17-2020, 06:50 PM
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IF I did replace them I would go OEM. Haven't decided.
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Old 01-18-2020, 12:01 PM   #28
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Quote:
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You can get that much HP from a No Fear sticker!
A Fakewrenching sticker should add 30HP.

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