Question about Misfiring/Ignition Coil/Spark Plugs

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Hello,

I own a 2000 Lincoln LS V6. I have been having problems with a cylinder misfiring, so I figured that I needed to replace my spark plugs or one of my ignition coil.

I replaced all my spark plugs, but it continued to misfire. I went to a midas, and they told me that the problem did not seem to be with the ignition coils that are visible but it could be one of them under the big silver part (sorry, I am not familiar with car parts).

On the other hand, I went and connected a computer to my car and it came up stating that the misfire was located in Cylinder 6. To my understanding, wouldn't cylinder 6 be one of the three that are visible and not the one that would be more difficult to get at.

I hope this was clear, but my main question is trying to determine which cylinder is cylinder 6. I have looked at patterns from other posts, but they just don't make sense to me.

Any help with this would be greatly appreciated!

Thanks,

Brian Meyer
Btmeyer@eagle.fgcu.edu
 
cylinder 6 is on the drivers side rear( by the firewall). and this i believe would be the harder side.
 
Hey,

Well, if it is on the drivers side I think that would be easier because that big silver part is on the passenger side.

But if that is the case I do not understand what is wrong. What else could be wrong if a cylinder is misfiring, yet the spark plugs are replaced and they say it is not the ignition coil?

Brian
 
lots of things can cause a misfire. usually it's a coil, but another likely culprit is a leaky injector or bad wiring to the coil. After that could be all sorts of things...
 
1 - DON'T trust the Midas touch :P.

2 - could be anything, even the computer. My V8 also developed a misfire on #6 cylinder, turned out to be the computer.

Try swapping stuff around, like the plug, injector, and coil to another cylinder.

Disconnect the battery for a while to clear all codes.

Take it for a spin, wait for the check engine light to come on.

Diagnose it again, if it's still on #6 it's the computer. If it's to the cylinder you moved the stuff around too, it's one of those components.

Good luck, and have fun :lol:.
 
I have a question. What computer did you hook up to find out which cylinder was misfiring? I have a scanner that shows engine error codes but it doesnt show anything about a misfire. I know for a fact that my car currently has ANOTHER bad coil.
 
replace all coils and spark plugs then if the problems still there, you know its something else... just what i would do
 
There are error codes for misfires, and one of the digits in the code indicates the cylinder with the misfire, so if it throws a code, it'll tell you which cylinder is misfiring. In this case ('00 V6), any OBDII scanner should tell you about the misfire, since it threw a code; unfortunately, not all misfires throw a code.
 
I don't personally have a computer that I hooked it up to. But, I had advance auto hook it up to their computer and it they printed out what the code translated into to, which was cylinder 6 misfiring. I just just replaced all the spark plugs, and about a year ago I had 3 of my ignition coils replaced, unfortunately I did it at Lincoln (which I will never do again, they charge a bit too much), and I do not know which three they replaced.

brian
 
Okay,

As I said before, I had Lincoln Replace 3 of my 6 ignition coils over a year ago. My question is, what is the part number of the ignition coils that would typically come stock on the Lincoln LS V6. The reason I am asking is because I am trying to figure out which 3 they replaced. I thought I knew, but now I am a bit confused.

The ones that I can see appear to be XW4U-12A366 AC. The ones that show on the paper work are 2W4Z-12029 AC (2 of them) and 2W4Z-12029 AB (1 of them).

But, when I look at it, it appears that one of the ones that are difficult to see says 2W4E-12A366 AB. and I can't see the other two.

Which of these would be on the car when you first purchase it ? I have tried to figure this out by searching but I had no success.

Thank You,

Brian Meyer
Btmeyer@eagle.fgcu.edu
 
The ACs are the newer coils; they superseded the ABs. You'll probably have two ACs and four ABs.

If you can scan in (or type in) the paperwork, someone here might be able to decipher it and tell you if it indicates which coils were replaced.
 
Hello,

Thanks for your help. Okay, that sounds good. I will scan it hand post it up tomorrow or the next day (don't have a scanner available).

Thanks,

Brian
 
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