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#2441100 - 01/18/12 06:22 PM Coil Packs - when to change
daiadvisor Offline
n00b

Registered: 01/01/12
Posts: 16
Loc: Dayton, Ohio
My car is 2001 CVPI and has 101k on it. Had some engine hesitation / misfire issues. I just changed the spark plugs and found one boot to be bad. Replaced the boot, that mostly fixed the problem. So, should I just get all new packs? Thanks for any information.

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#2441105 - 01/18/12 06:29 PM Re: Coil Packs - when to change [Re: daiadvisor]
BillyBishop Offline
Expert mechanic
Poobah

Registered: 02/06/11
Posts: 5253
Loc: KY
Yeah. If one goes bad that usually means that the rest aren't far behind. I'd replace them all.
_________________________
Originally Posted By: etcv97
forget this BS panther site your all just a bunch of [censored] holes..


1985 2 door vic-------2003 P71: Lots of mods-----1994 Buick Toastmaster
Past: 2002 P71, 1996 LTC, 2003 P71

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#2441166 - 01/18/12 07:58 PM Re: Coil Packs - when to change [Re: daiadvisor]
daiadvisor Offline
n00b

Registered: 01/01/12
Posts: 16
Loc: Dayton, Ohio
I found a set on ebay new for around 90 dollars. Is that a good deal or can I get them cheaper somewhere else? Autozone wanted 50 per coil pack (1), so I figured I better look elsewhere.

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#2441171 - 01/18/12 08:01 PM Re: Coil Packs - when to change [Re: daiadvisor]
BillyBishop Offline
Expert mechanic
Poobah

Registered: 02/06/11
Posts: 5253
Loc: KY
No. the ebay ones will probably just last you a few thousand miles. Don't go cheap when you buy coils. You WILL regret it.
I would only put motorcraft, granatelli, or MSD in my car.
_________________________
Originally Posted By: etcv97
forget this BS panther site your all just a bunch of [censored] holes..


1985 2 door vic-------2003 P71: Lots of mods-----1994 Buick Toastmaster
Past: 2002 P71, 1996 LTC, 2003 P71

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#2441176 - 01/18/12 08:10 PM Re: Coil Packs - when to change [Re: BillyBishop]
jeff20636 Offline
n00b

Registered: 05/04/11
Posts: 24
Loc: Md
Originally Posted By: BillyBishop
No. the ebay ones will probably just last you a few thousand miles. Don't go cheap when you buy coils. You WILL regret it.
I would only put motorcraft, granatelli, or MSD in my car.

Does the brand matter? I bought mine off Ebay a few weeks ago and they are Motorcraft, at least they have a Motorcraft part#, they appear to be an exact match to the originals that I replaced
_________________________
2003 Crown Vic LX
04' CVPI 80MM MAF/Airbox/Zip tube
SCT SF3 w/BOC 91 Oct Custom tune
.....still workin'

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#2441183 - 01/18/12 08:20 PM Re: Coil Packs - when to change [Re: daiadvisor]
spnkr05 Offline
Member

Registered: 10/11/10
Posts: 272
Loc: kingston, RI
Has anyone tried the accel coils? They are $220 from summit racing but i haven't heard anything about them. Seem like a reputable company.... thinking about buying.
_________________________
05' p71.. 3.27's that need to go. borla cat back, hacked airbox, ported intake elbow, mustang belt configuration without a/c, mustang gt premium wheels, rear cats ran off, blacked out head light housing, marauder corners.
Rattle can paint job FTW... sticks better than ford white!
Coil springs specialties 1 1/2" lowering springs out back, chopped pi springs up front, monroe severe service shocks.

3.73's just waiting to go in

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#2441222 - 01/18/12 09:07 PM Re: Coil Packs - when to change [Re: daiadvisor]
P71Ham Offline
Climber

Registered: 11/18/08
Posts: 650
Loc: Parkersburg, WV
I've read mixed reviews about them. Some people on here love them. Some hate them, and said they went bad within a few thousand miles. You can get a set of 8 from rock auto for 342 for Motorcraft. $120 more for OEM.
_________________________
'01 Crown Vic. P73. 145k. Ex college president's car.
Mods so far:Bumper tuck, Sony Xplod head unit, sidemarker blink mod, New OEM headlight housings from ADTR, BH1976 Headlight Relay Harness, $40 junkyard 70mm TB (More to come as $$$ permits)

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#2441229 - 01/18/12 09:13 PM Re: Coil Packs - when to change [Re: daiadvisor]
BillyBishop Offline
Expert mechanic
Poobah

Registered: 02/06/11
Posts: 5253
Loc: KY
Accels are poor quality. They don't last long and they can die with just a little bit of moisture. I have used them in the past and wasn't impressed
_________________________
Originally Posted By: etcv97
forget this BS panther site your all just a bunch of [censored] holes..


1985 2 door vic-------2003 P71: Lots of mods-----1994 Buick Toastmaster
Past: 2002 P71, 1996 LTC, 2003 P71

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#2441245 - 01/18/12 09:31 PM Re: Coil Packs - when to change [Re: daiadvisor]
Raven238 Offline
Climber

Registered: 09/19/10
Posts: 775
Loc: Boston, MA
I've had these since Feb 2010 with no problems.

http://www.ebay.com/itm/8-Ignition-Coils-Set-98-09-Ford-Crown-Victoria-4-6-4-6L-/230732354973?pt=Motors_Car_Truck_Parts_Accessories&fits=Model%3ACrown+Victoria|Make%3AFord&vxp=mtr&hash=item35b8b8559d

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#2441319 - 01/18/12 11:22 PM Re: Coil Packs - when to change [Re: daiadvisor]
KayTar Offline
Poobah

Registered: 05/13/09
Posts: 7860
Loc: Alberta, Canada
Pifft I've got lots of Kms on these and my car runs like a champ.
My OEM ones were crapping out so I replaced them. Roughly $120.00 for 10 Coils.





eBay for the win!! I took a chance yes, these could of been garbage, but they were not. That's not to say they are all great but don't dismiss an unknown brand to be trash just because it doesn't cost silly amounts of money. Don't fall into Price tag/name tag placebo effect people. Read reviews, research etc etc.
_________________________
2003 P71 - MZT, 3.73s, Victor Jr intake, OBX kit, 78MM TB SOLD
2005 P71 - K&N Intake, various tint rest stock SOLD
2010 Challenger RT Classic - JBA longtubes, Pypes exhaust SOLD
2008 P71 - Vortech V2-SQ, 3.4" pulley, 2nd cats removed, yeah it goes.

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#2441362 - 01/19/12 01:46 AM Re: Coil Packs - when to change [Re: spnkr05]
stalag Offline
Over the Hill

Registered: 03/29/09
Posts: 2823
Loc: Columbus, OH
Originally Posted By: spnkr05
Has anyone tried the accel coils? They are $220 from summit racing but i haven't heard anything about them. Seem like a reputable company.... thinking about buying.


Yes, and I replaced them with MSD. Had too many failures in 40K miles.
_________________________
Stalag;___________Just for Rizzo I am posting this in my sig. Coolants
2001 Lincoln Town Car Cartier L, 1997 Mercury Grand Marquis (extinct)
On my LTC the following mods/upgrades were added. Heinous motorsport control arms, Command Automotive SD-1 rotors, Calipers by Goldlinebrakes.com in silver with Hawk HPS pads, MSD COP's. MZT is also applied with programming from BOC. j-mod is now done. Final rebuild of transmission done by Gearstar.

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#2441404 - 01/19/12 07:33 AM Re: Coil Packs - when to change [Re: daiadvisor]
gord_bolton Offline
Over the Hill

Registered: 05/06/02
Posts: 4691
Loc: Saskatoon, Saskatchewan
Coil packs are not a wear item. They are well designed, robust and durable. There is no reason to expect that they will not last the life of the vehicle.

The boots can become brittle with heat and age. I usually change them when I do a spark plug change. The boots and springs are often damaged during a spark plug change anyway.

It is not a bad idea to have a spare coil tucked away in the trunk, but I would suggest that arbitrarily changing a whole set is a waste of time and money.

The most common cause of "coil failure" is water or antifreeze in the spark plug well. And most of the time the original coil will work just fine when the moisture is removed. It is actually wiser to replace the spark plug after a flooded well event than the coil.

Ford claims that most of the coils that are returned from their dealers "under warranty" are working just fine.

It usually works out like this: Owner pops the hood in the car wash and blasts the engine with high pressure wash. Water gets in the spark plug well(s). Owner experiences misfires and the check engine light is set. Owner takes the vehicle to dealer complaining about the misfires and check engine light. Mechanic checks codes and finds misfire on #5 and #1. Mechanic pops in two new dry coils and resets the check engine light. Customer drops off $400.00 or argues warranty. Either way the owner drives away complaining about chitty coils.

Someone else hears about the $400.00 charge and sees the coils on ebay. Thinks that they can save money or gain peace of mind by buying and installing a whole new set.

I am currently running a 99 MGM. Over 300K and original coils. Running just fine, thank-you.

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#2441416 - 01/19/12 07:58 AM Re: Coil Packs - when to change [Re: gord_bolton]
GrandMarq9807 Offline
Over the Hill

Registered: 05/10/10
Posts: 2943
Loc: Virginia
Originally Posted By: gord_bolton
Coil packs are not a wear item. They are well designed, robust and durable. There is no reason to expect that they will not last the life of the vehicle.

I am currently running a 99 MGM. Over 300K and original coils. Running just fine, thank-you.



Bingo!!!

Even worse than drowning them is running spark plugs the recommended 100Kmi plus interval... As the plugs wear the voltage required to fire them increases which can cause a break down in the coil windings and burns the boots... Change your plugs at 50K mi, you'll likely never need a coil, and can change boots at every other plug change...

Both my MGMs will get fresh plugs this spring, the Marauder got new plugs with the SC install at 37Kmi...
_________________________
1998 Grand Marquis LS. 61K mi.
2007 Grand Marquis GS. 61K mi.
1996 F-150 XLT 5.0 E4OD 179K mi
1988 Turbocoupe 331 AOD
1972 Comet GT 306 C4
1969 Fairlane Cobra 428CJ 4-Speed


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#2441506 - 01/19/12 10:47 AM Re: Coil Packs - when to change [Re: daiadvisor]
BigMerc96 Offline
Grand Poobah

Registered: 06/05/10
Posts: 11406
Loc: I can see Detroit from here!
Those of us with coil packs and wires, change the wires with the plugs. When I changed my original plugs and wires at 80k miles, the wires were actually starting to corrode internally (cut 1 open as I usually do when I change wires). Granted those wires were also 14 years old at the time..

Same goes for my buddy's '90 Oldsmobile with 130k on original plugs and wires (plug gap was enormous). Those were the worst wires I've ever seen, the insulation was cracking, and the copper core in them was just green dust in the insulation when I cut them open, its amazing it didn't have ant misfires, but it ran significantly better with new plugs and wires.

Same buddy has a '91 GMQ wagon and his brother has a '88 gmq. The Wagon had its original plugs, wires and distributor cap&rotor at 1xx,xxx miles (busted odometer reads 9k miles). Those wires were the same story, corroded internally. '88 GMQ had older wires, dunno how old but not original (that car has 183k miles), and those weren't too bad.
_________________________
-Steve

1997 Town Car Cartier ~114k miles, 70mm TB, Ported Plenum, Gutted Airbox, Mechanical Fan Delete, Contour E-fan Retrofit, Dual exhaust with Magnaflows, rear cat delete, MSD Ignition, KYB Gas-A-Justs, Marauder/HPP rear sway bar, P71 front bar, air ride reinstated, Blinker Mod, Caddy 4-note horn retrofit, Wood rim steering wheel retrofit.. Smashed 1/13/13....I fixt it..
1996 Mercury Grand Marquis GS 117,485mi. R.I.P. 7/14/12 frown
Originally Posted By: BillyBishop
I've read a lot of threads on CVN, and this one is probably the worst.

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#2441635 - 01/19/12 02:24 PM Re: Coil Packs - when to change [Re: daiadvisor]
daiadvisor Offline
n00b

Registered: 01/01/12
Posts: 16
Loc: Dayton, Ohio
I looked at my coils today and some of them are Motorcraft, and some are unknown black tops.. I'll wait a while and see if the situation improves (got SeaFoam in the tank) but if the misfires continue, I'll just get a new set of coils and keep old ones for spares.

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