Coil On Plugs
Super Moderator
Joined: May 2004
Posts: 29,380
Likes: 118
From: Central Coast of CA
Scan for codes and you'll know exactly which COP is bad. Then you can buy one and pop it on yourself and really save money.
Stewart
Super Moderator
Joined: May 2004
Posts: 29,380
Likes: 118
From: Central Coast of CA
Now, I haven't been active on the Lightning boards in a few years, but the last I saw, the only aftermarket COP's worth a damn were Weapon X coils.
Granatelli COP's were garbage and not worth posting a four-letter word in relation to the name.
A couple high HP Lightnings almost had their engines ruined due solely to Granatelli COP's being used.
Stewart
Posting Guru
Joined: Dec 2011
Posts: 1,016
Likes: 0
Now for the question, are you saying that any old cheapo code scanner will tell me exactly which plug is bad? If that is the case then I will buy a scanner and some more coils and keep them stored in the truck somewhere. I want to take a road trip in March and I don't want to get stuck somewhere with this thing running like crap and have to pay some dealership price to get it fixed.
Super Moderator
Joined: May 2004
Posts: 29,380
Likes: 118
From: Central Coast of CA
I am saying a good scanner will tell you which COP is setting a code.
Stewart
Cargo Master
Joined: Jun 2008
Posts: 2,923
Likes: 33
From: Sacramento Area
My Harbor Freight special works just fine to pull the specific bad code.
Cargo Master
Joined: Jul 2009
Posts: 2,885
Likes: 26
From: Chino, California
Before you drop any cash on cheapo scanner, go to a chain auto parts store and they can try to scan the codes...unless you're in Calif. where they are not allowed to scan for you. Stupid CA law.
Posting Guru
Joined: Dec 2011
Posts: 1,016
Likes: 0
Good call, and I was thinking about doing that, the local shops do scan for free. It just seems like less of a hassle to swap them all.
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Cargo Master
Joined: Jun 2008
Posts: 2,923
Likes: 33
From: Sacramento Area
I just called my local parts/repair store and they said that's crazy, they are totally allowed to read the code and tell you the DTC that caused the light to trip. If your CA shop is telling you they can't - it's not true, they just don't want to do it for you.
Cargo Master
Joined: Jul 2009
Posts: 2,885
Likes: 26
From: Chino, California
I had gone to an Autozone here and that's what the guy said. They would loan me the scanner after I leave a deposit. I get it back when I returned it.
His explaination was that the clerk is not an emissions tech and CA law does not allow him to read codes unless he is certified. Sounds like the typical silly CA laws like eggs sold here must be from chickens that has room to spread it's wings in the coup.
This Autozone does not have a repair shop.
His explaination was that the clerk is not an emissions tech and CA law does not allow him to read codes unless he is certified. Sounds like the typical silly CA laws like eggs sold here must be from chickens that has room to spread it's wings in the coup.
This Autozone does not have a repair shop.
Cargo Master
Joined: Jun 2008
Posts: 2,923
Likes: 33
From: Sacramento Area
That's why. It's not a legal issue as far as CA is concerned, that's AZ covering their butts against legal action if someone misinterprets the codes.
Go to a shop with a repair bay (check locally for a different AZ or PepBoys) and go there. They will have a repair tech (they have to be ASE certified) check the codes for you for free.
...or you can google the 'paper clip' trick. I used to do that on my Oldsmobile...you take a paper clip and jump two of the ODB pins and the service engine light blinks - longs = 10's, shorts = 1's. Not sure if it works on ODB2 or just ODB...might only work on ODB since the codes are shorter (2 digits).
Go to a shop with a repair bay (check locally for a different AZ or PepBoys) and go there. They will have a repair tech (they have to be ASE certified) check the codes for you for free.
...or you can google the 'paper clip' trick. I used to do that on my Oldsmobile...you take a paper clip and jump two of the ODB pins and the service engine light blinks - longs = 10's, shorts = 1's. Not sure if it works on ODB2 or just ODB...might only work on ODB since the codes are shorter (2 digits).
New User
Joined: Dec 2011
Posts: 9
Likes: 0
From: Caseyville, Il
After owning a Lincoln LS and then a 2000 Expedition, I became good at replacing coils. I have had the best luck with OEM coils, but they are 115$ from the dealer. The next best was accel. They seem to last about 1 yr, then they are done. I bought the ebay coils for the lincoln, and they lasted 3 weeks....sent them back, got a new set, 2 months later I did it again. If you can't afford motorcraft, then go accel.
BTW. The computer doesn't really know what cyl is misfiring. More times than not, mine would mistake cylinders. I would take a new coil and move it around till the missing stops.
BTW. The computer doesn't really know what cyl is misfiring. More times than not, mine would mistake cylinders. I would take a new coil and move it around till the missing stops.
Thread Starter
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Senior User
Joined: Feb 2011
Posts: 383
Likes: 1
man i looked at those weapon x coils. if they do what they say they do. that would be some bad butt poop.
got another question: i have had my excursion for almost 9 years now with a 143000 plus miles.
when will it be a good time to change them. lol
got another question: i have had my excursion for almost 9 years now with a 143000 plus miles.
when will it be a good time to change them. lol