spark plug fouling - Ford Mustang Forum
 
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post #1 of 8 (permalink) Old 03-09-2016 Thread Starter
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spark plug fouling

So I have had my mustang for about a year now and I gave been having problems with the msd coils the Last guy put on, they go bad one by one and I've been replacing them one by one... anyway last one that went bad I had aboUT 60k miles on the car so I got 8 spark plugs. Put them in everything was fine then another misfire code, so I swapped the could from cyl 2 to cyl 6 and the misfire stayed on cyl 2. Pulled the plug and found it was carbon fouled after 2 weeks. Checked cyl 1 spark plug and that was fine. So I replaced the one plug in cyl 2 and low and behold another misfire code a week later same cylinder 2 new plug now has carbon fouled again. I had one more plug laying around so I threw it in and on the way home from work I get another misfire code on cyl 2. Why is my plug on cylinder 2 keep carbon fouling? Anybody else have constant misfire problems?

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post #2 of 8 (permalink) Old 03-09-2016
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MSD is known for that....go back to OEM coil packs and it should be good...they are as good as it gets regardless of the PR docs that some companies produce


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post #3 of 8 (permalink) Old 03-09-2016
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Oem is the best. I know when I bought my 05 mustang in 2006, bought granetelli COP boots about a week after after owning it. 3 took a crap in one week. So since 2006 and several stangs and lightnings later, oem cop's only.
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post #4 of 8 (permalink) Old 03-10-2016 Thread Starter
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I havent been able to swap them all yet but I still have 4 on. But why does the plug keep carbon fouling in cylinder 2? I have an oem cop in that cylinder but it still fouls after a few miles.
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post #5 of 8 (permalink) Old 03-10-2016
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Quote:
Originally Posted by MachV6 View Post
I havent been able to swap them all yet but I still have 4 on. But why does the plug keep carbon fouling in cylinder 2? I have an oem cop in that cylinder but it still fouls after a few miles.

What does the plug look like? Not what you wanna hear but if it's oily you could have some ring issues.

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post #6 of 8 (permalink) Old 03-11-2016
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Quote:
Originally Posted by MachV6 View Post
I havent been able to swap them all yet but I still have 4 on. But why does the plug keep carbon fouling in cylinder 2? I have an oem cop in that cylinder but it still fouls after a few miles.
Do a compression test on that # 2 cylinder and compare it to the other cylinders in your engine,that should give you a starting point.
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post #7 of 8 (permalink) Old 03-12-2016
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BUMP-Any news on your #2 cylinder yet ?
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post #8 of 8 (permalink) Old 03-12-2016
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Post a pic of it if you can.
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