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Ever bought/changed a coil pack? #5127769 06/07/19 09:40 AM
Joined: Mar 2008
Posts: 6,760
Z
ZZman Offline OP
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Of all the vehicles I have owned I have never had to buy or change one. Am I lucky or are some vehicles just prone to having them fail?


2007 Hyundai Santa Fe AWD.
2005 Toyota Avalon XLS
Re: Ever bought/changed a coil pack? [Re: ZZman] #5127777 06/07/19 09:48 AM
Joined: Jun 2002
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Kestas Offline
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K
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Posts: 13,367
You're lucky... or you haven't put enough miles on your cars. I've had to change them on nearly every car I've had. Some needed replacing yet again.

Re: Ever bought/changed a coil pack? [Re: ZZman] #5127790 06/07/19 10:03 AM
Joined: Dec 2014
Posts: 826
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Ed_Flecko Offline
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As spark plugs wear and the "gap" increases and the load on the coil pack increases accordingly, ultimately accelerating their failure. The coil pack increases power to the spark plug to always keep it firing, and that gets harder as the gap increases.

Replace your plugs at regular intervals, don't try to squeeze every mile you can out of them and you'll likely increase the lifespan of your coils. I set of spark plugs is a lot cheaper than coil packs.

Ed


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Re: Ever bought/changed a coil pack? [Re: ZZman] #5127791 06/07/19 10:04 AM
Joined: Jan 2017
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newbe46 Offline
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I had 3 of them gone bad in my M3. I could have changed it myself but it was in the middle of winter so I couldn't bother. They changed all 6 of them.

Re: Ever bought/changed a coil pack? [Re: ZZman] #5127799 06/07/19 10:18 AM
Joined: Jan 2013
Posts: 3,466
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WyrTwister Offline
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Dad and I changed the single coil on his 69 Galaxy 500 , 302 cid engine , maybe in the 1970's ?

I may have changed one on one of my cars . Can not remember clearly enough to say for sure .

Truth is , cars , now a days , are running more miles than in my youth . Maybe that has something to do with it ?


Wyr
God bless
Re: Ever bought/changed a coil pack? [Re: ZZman] #5127801 06/07/19 10:20 AM
Joined: Feb 2009
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daves87rs Offline
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Nope, never changed one.....


2019 Chevrolet Equinox LS
2006 Chevrolet Cobalt LS
Re: Ever bought/changed a coil pack? [Re: ZZman] #5127803 06/07/19 10:24 AM
Joined: Nov 2004
Posts: 7,995
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GMBoy Offline
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In the old days of carbs it was common for the coils to last maybe 50-60k miles before needing to replace it. Those were just cheap cylinder oil filled styles...we would always upgrade a chrome unit lol. Nowadays, I have only noticed that GM 4.2 inlines and 3.6L motors go thru coils often.

Re: Ever bought/changed a coil pack? [Re: ZZman] #5127808 06/07/19 10:26 AM
Joined: Oct 2004
Posts: 3,398
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beanoil Offline
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Joined: Oct 2004
Posts: 3,398
Dodge Caliber, had one fail, RockAuto'ed one. Easy to swap out.
RamPromaster company ride, CEL came on, bad miss, failed coil pack. Car was in the shop for a week, excuse was the Fiat coil pack came from Italy.
Chrysler T&C, failed coil on the rear bank gave a CEL. Had all plugs and pack replaced, repair shop said all other coils tested fine. I don't know how coils are tested, took their word on it. And I wasn't going to be the one digging into the rear bank. A man needs to know his limits.
As I'm thinking, all were FCA products that had coils go boink.

Re: Ever bought/changed a coil pack? [Re: ZZman] #5127813 06/07/19 10:29 AM
Joined: Dec 2016
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Linctex Offline
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My uncle's 2001 F150 4.6 liter would kill the furthest forward one (on the passenger side) with regularity....

We never could figure out why.


My 2008 F150 4.6 has never had one fail with 192,000 miles on it.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Ever bought/changed a coil pack? [Re: ZZman] #5127825 06/07/19 10:47 AM
Joined: Dec 2005
Posts: 1,213
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caprice_2nv Online Content
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When I worked at the Ford dealer mid 2000s we replaced them constantly on the trucks. One employee in our body shop had to replace all of his over a period of a year on a 2003 f150.

I've never seen one fail on a gm truck from the 2000s, or any of the hei coils in my old 1980s cars (knocks on wood).

Some vehicles seem prone to them failing more than others. Change spark plugs more often to prevent failure, is good advice.


84 Olds Cutlass - 350 Olds
83 Chevy Caprice - 305 Sbc
79 Honda CX500
Re: Ever bought/changed a coil pack? [Re: ZZman] #5127829 06/07/19 10:54 AM
Joined: Jun 2008
Posts: 5,957
ls1mike Offline
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I have replaced some on a Subaru H6 Tribeca and one on the S/C 3800 Regal I had (which is really two)


Mike
00 Trans Am WS6 5.7 LS1
17 Silverado 3500HD 6.0
14 Caprice PPV 6.0
15 Malibu LTZ Turbo
12 Passport TT
Re: Ever bought/changed a coil pack? [Re: ZZman] #5127841 06/07/19 11:10 AM
Joined: Feb 2013
Posts: 338
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brages Offline
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Joined: Feb 2013
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"coil pack" is a misnomer when used to refer to a coil-on-plug module.


I had bad coils on a Mazda MPV (Duratec 3.0) and had to replace several.

Re: Ever bought/changed a coil pack? [Re: ZZman] #5127845 06/07/19 11:18 AM
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Posts: 2,404
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Blkstanger Offline
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I have done them all on my Jeep. When I bought it it still had the original coils. The little springs that make contact with the plugs were rusted out. When I went to change the plugs they fell apart.


99 Jeep WJ 4.7 200,000mi. Maxlife 10w30, Fram Ultra.
15 Ford Escape S 2.5
Re: Ever bought/changed a coil pack? [Re: Linctex] #5127846 06/07/19 11:19 AM
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supton Offline
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Originally Posted by Linctex
My uncle's 2001 F150 4.6 liter would kill the furthest forward one (on the passenger side) with regularity....

We never could figure out why.

Least cooling, ran the hottest? Vibration? shrug

Myself, I don't think I've ever replaced one. Never owned a gasser long enough I guess.


2011 Toyota Camry, base, 2.5L/6MT, 194k, hers
2010 Toyota Tundra DC, 4.6L/6AT, 155k, ours
1999 Toyota Camry LE, 2.2L/4AT, 215k, his
Re: Ever bought/changed a coil pack? [Re: supton] #5127850 06/07/19 11:21 AM
Joined: Jun 2005
Posts: 13,658
bdcardinal Offline
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Originally Posted by supton
Originally Posted by Linctex
My uncle's 2001 F150 4.6 liter would kill the furthest forward one (on the passenger side) with regularity....

We never could figure out why.

Least cooling, ran the hottest? Vibration? shrug

Myself, I don't think I've ever replaced one. Never owned a gasser long enough I guess.


The cowl drains on top of them so whenever it rains they get soaked.


2014 Ford Mustang GT Track Pack
1995 Ford Mustang GT

Ford/Mazda Parts Counter
NRA Benefactor Member
Opinions expressed are my own.
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