Ignition coils...

[Jcovill125]

I have no questions about these. Just a little hate for them. I understand why they're there. But I'm getting REALLY tired of replacing these. I think I'm on the 5th one? On the plus side, I've only got 3 more to go! But at $59+ at AutoZone for just 1 coil hurts my wallet.

Anybody else feel my pain?

 

[bedrck46]

How often have you had to change them?

 

[Jcovill125]

It had seemed like every few months a coil would pop. Then I changed my spark plugs and I would get a misfire. Replace the coil CEL went away and all was well in the world. It happens randomly so I don't really know if it happens every xxxx miles.

 

[bedrck46]

you should get plenty of miles out of the plugs and coils I had a problem on a previous 99 5.4 and the problem was the connecting boot I just replaced the boot and many miles I replaced all the plugs Just curious as if that could be your problem When you replace coils have you done a resistance check on the old coils??

 

[Jcovill125]

I never thought to check that. I had always assumed that if one part fails the rest is shot too -___-

 

[bedrck46]

I know that when you buy a coil it normally has the boot attached The boots are also available separately I just got a set from advanced auto (autolite's) the first time I replaced a boot I got it from Ford Take a good look at the boots when mine went there was a pin hole in the side of it had to see but you could notice what looked like a very small spot that was different than the rest of the rubber when I bent it in half the hole was very visible When you pull a coil check the resistance and compare it to a new coil

 

[bbiljah]

If you haven't bought any yet I bought ACCEL coils from Sumit for $200 and work AMAZING

 

[tojohnso]

I feel your pain. First one went out on me with my wife, then girlfriend, on the way to a Virginia Tech game. We were going through Charlottesville - UVA country - and my engine light started flashing with motor sounding awful. Saw there was a Ford dealer at the next exit. $350 - $400 later we were out the door after some kidding around about where we were going. That was my '99 with about 80K on it. Over the next 40K miles, ended up replacing them all. No warning....they just go. Better off replacing them all when one goes so you don't have to worry about where you'll be when the next one decides to pop.

I get why they did Coil overs.....but not sure if it's really worth the reliability problems.

 

[Mikes05expy]

I feel your pain. First one went out on me with my wife, then girlfriend, on the way to a Virginia Tech game. We were going through Charlottesville - UVA country - and my engine light started flashing with motor sounding awful. Saw there was a Ford dealer at the next exit. $350 - $400 later we were out the door after some kidding around about where we were going. That was my '99 with about 80K on it. Over the next 40K miles, ended up replacing them all. No warning....they just go. Better off replacing them all when one goes so you don't have to worry about where you'll be when the next one decides to pop.

I get why they did Coil overs.....but not sure if it's really worth the reliability problems.

I read that 2nd sentence way too fast. I thought it said wife and girlfriend and all I could think was man, he's got the coolest wife ever lmao, now I got it.

Sent from my $amsung $III using Tapatalk

 

[RayBeakley]

I just bought my 2000 around thanksgiving. It only has around 97,000 miles.
It runs so well. I think I will wait for a performance problem, before I start messing with plugs. Most people I know never talk about replacing the boots. They're so sure it has to be the coil. I would love to know how many people have thought to change the boots, when they change plugs. Seems like the reasonable thing to do..

 

[bedrck46]

if the coils are ok then just change plugs and boots as the boots sit in the wells and are subjected to more heat and being they are rubber will deteriorate in time. I have noticed that the coils I have seen for sale have the boots on them But there must be a reason that the boots are available by themselves. Also being you need to remove the COP it would make good sense to replace boot and plug

 

[tojohnso]

I read that 2nd sentence way too fast. I thought it said wife and girlfriend and all I could think was man, he's got the coolest wife ever lmao, now I got it.

Sent from my $amsung $III using Tapatalk

Awesome! In some ways I wish that was true.....in others, could get too complicated LOL.

 

[BAD RONALD]

I have had very good luck with COPs purchased on Ebay. They were installed when I replaced the spark plugs last summer on my '01. They cost around $8 each in a set of 10 with free shipping. This is about the cost of replacement COP boots alone purchased locally.

In my experience, if the rubber boots are properly sealed with dielectric grease,spring arcing is prevented and the cheap coils perform well. There is no need to pay top dollar for ignition coils.

 

[bedrck46]

I have had very good luck with COPs purchased on Ebay.

who did you buy the coils from on e-bay

 

[RayBeakley]

I guess that's why I am so optimistic. I have drove four cylinder cars with coils over for hundreds of thousands of miles. ( literally ) And have had no problems. Time will tell...

 

[BAD RONALD]

I have had very good luck with COPs purchased on Ebay.

who did you buy the coils from on e-bay

New Premium High Performance Ignition Coil Ford Lincoln Mercury DG508 Set of 10 | eBay

Cheaper than I remembered.

 

[bbiljah]

New Premium High Performance Ignition Coil Ford Lincoln Mercury DG508 Set of 10 | eBay

Cheaper than I remembered.

I wouldn't buy anything like that off ebay... just more of a head ache replacing them again when they go bad... break down and spend the $200 for super 8 accell coils high performance from summit racing or Jegs. don't be cheap cause that's what you get.

http://www.summitracing.com/parts/acc-140032-8/overview/year/2002/make/ford/model/expedition

 

[BAD RONALD]

I wouldn't buy anything like that off ebay... just more of a head ache replacing them again when they go bad... break down and spend the $200 for super 8 accell coils high performance from summit racing or Jegs. don't be cheap cause that's what you get.

http://www.summitracing.com/parts/acc-140032-8/overview/year/2002/make/ford/model/expedition

I don't know that expensive coils last longer than others. For me the cheap coils were worth a shot. I have the two extra ones and a few of the originals on hand in case the replacements fail.

To date I have no problems to report with the Ebay COPs.

 

[bbiljah]

I don't know that expensive coils last longer than others. For me the cheap coils were worth a shot. I have the two extra ones and a few of the originals on hand in case the replacements fail.

To date I have no problems to report with the Ebay COPs.

Well I'm glad youhave had luck just gives me an unsettling feeling ordering electronics from ebay lol. Esp since they can be a pain to put them in lol

 

[BAD RONALD]

Well I'm glad youhave had luck just gives me an unsettling feeling ordering electronics from ebay lol. Esp since they can be a pain to put them in lol

No offense taken. I share the same unsettling feeling with Ebay. The COPs were recommended to me as reliable so I gambled. The way I looked at it, I had COPs fail on me that cost as much for a single one as the set of ten does. By the time I finished the spark plug job I felt confident that I could replace in a parking lot any future coil that failed.