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I had to go to the Ford dealer to try to get 22C or 12C plugs. Autozone and the discount auto parts store told me 32Cs are one step colder. Scared me away instantly. One of the old plugs had the loose porcelin tip sloppy loose in the steel shell. Anyway after installing the 32Es it feels like the motor is running on 6 cyls.

Poor quality control or are these the wrong plugs? They have the short shank like the 32s and the length is the same. I even traced the wires to make sure none are crossed. Maybe a bad batch of plugs?:confused:
 

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What gap are you running?
NA should be .050+
Blower should be .035

If it is misfiring, I would look at the boots on the plug end of the wires. See if there is rust or other oxides on the rubber. Clean them.

Also, cracks or poor seal around the insulator will let the spark arc to the head not across the plug. You could pull one at a time to see if you can isolate it.
Put the other plugs back in and see if it continues.
They aren't too hard to do compared to others

rm
 

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Discussion Starter #3
Thanks for the advice. I'll try pulling one wire at a time.
 

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If you need new plugs I got mine from fordparts.com. Great prices and have just about everything. The dealers didnt have the ones I wanted (the 22Cs) and they were half the price online anyway.

-Shawn
 

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if you cant find 22Cs Autolite 103s the are same as 22Cs, might be easier to find. Did you make sure you put the plugs on the correct posts on the coil packs? i know it sounds stupid but i did it once in a rush and got terrible missfire.

joseph
 

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Scoupe said:
I had to go to the Ford dealer to try to get 22C or 12C plugs. Autozone and the discount auto parts store told me 32Cs are one step colder. Scared me away instantly. One of the old plugs had the loose porcelin tip sloppy loose in the steel shell. Anyway after installing the 32Es it feels like the motor is running on 6 cyls.

Poor quality control or are these the wrong plugs? They have the short shank like the 32s and the length is the same. I even traced the wires to make sure none are crossed. Maybe a bad batch of plugs?:confused:
ok just makin sure im reading this right, title says your using AWSF22E plugs "E"???? then in the message you said you put in 32E again "E"??? didnt even know they made E plugs, if thats the case thoes are the wrong plugs you have.

you need AWSF22C "C" not "E" or you can go the 12C in which case would be AWSFA12C if your in need of them and cant find them, Randy Sithcomb something or other, has them for like a buck.75 check it out on corral. or if your a member, go through max at :rolleyes:fivestar:rolleyes:
 

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Vic,

the E plug is the plug that the 03 Cobra uses...its a platinum tip, but dont quote me. I wento to a dealership to get cooler plugs and the guy just had, if i remember correctly 12EE, which is a plat and showed on his computer a 22E for the Lightning. But then again, its the same parts guy who quotes me more money for parts than any other dealers and told me A12C doesnt exist, but he showed me what his computer had listed.

joseph
 

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I bought Motorcraft plugs last year, and they end with an E, not C. They seem to be fine. Oh, and they are plats.
However, I am putting in 12C's right now, and my dealer here told me they don't exist as well. I paid $4.15 each for friggin Motorcraft plugs.
 

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Aaron_T said:
I bought Motorcraft plugs last year, and they end with an E, not C. They seem to be fine. Oh, and they are plats.
However, I am putting in 12C's right now, and my dealer here told me they don't exist as well. I paid $4.15 each for friggin Motorcraft plugs.
4.15 ouch i paid 1.56 for 12c's through fivestar.

as far as the E's being plats, isnt it bad to put platnium plugs in a SC'd vehicle??
 

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<img src="http://members.tccoa.com/seabass55/plugs.jpg">

I wouldn't run plat plugs in an SC'd vehicle even though Lightnings come with them....some folks replace those plugs asap and put some good copper plugs in.
 

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Interesting. My 32's have a "PP" on the end of them. According to the manual they are platinums. Maybe they went from "PP" to "E". Who knows.
I'm planning on using these same plugs on my PI heads, unless anyone can give me a good enough reason to go colder.
 

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the plugs required for OE on our 4.6L cars are AWSF-32PP, still are and more than likely will be. When you change the heads here is a good reason to go with a cooler plugs, do you want a dyno tune? cooler plug equals more timing equals more power. also, platinum isnt the greatest electrical conductor, it lasts longer. Also, if you want to go to the local ford dealership and pay some 45$ for 32PPs, that fine cuz i paid 10$ for a set of Autolite 103s, which are the same heat range as 22Cs.

joseph
 

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I got the 12C's in last night. They seem to be working real well. The only thing is after I got it put back together, it was hesitating when I gave it gas (long hesistation). Went back to my work thinking I some how messed up, well, I didn't plug the MAF back in:eek:
Anyways, I will find out on Sunday if they are good or not.:D
 

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Aaron_T said:
I got the 12C's in last night. They seem to be working real well. The only thing is after I got it put back together, it was hesitating when I gave it gas (long hesistation). Went back to my work thinking I some how messed up, well, I didn't plug the MAF back in:eek:
Anyways, I will find out on Sunday if they are good or not.:D


you arent the only one...i did it too once, i felt like i was drivin a Honda.

joseph
 

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I put in 32c's two days ago and noticed better response and smoother idling. I don't know if the 32p's were original or not, but they didn't look that old. Ohh, and I gapped to .060" and no problems under load or anything.
 

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Copper is a much better firing plug than platinum - may have too
change them sooner but if your into performance your plugs are routinely
checked anyways.

I have been using the NGK copper V-Groove TR-5's with no problems
 
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