unable to fix misfire. #6 cylinder
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  • 2 Post By Kingoftypos
Cadillac CTS First Generation Forum - 2003 - 2007 Discussion, unable to fix misfire. #6 cylinder in Cadillac CTS Coupe, Sport Sedan and Sport Wagon Forums; I can't figure figure out what's wrong with my car. It's a 2006 3.6. I'm getting a misfire code. I ...
  1. #1
    pinspade's Avatar
    pinspade is offline Cadillac Owners Fanatic
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    unable to fix misfire. #6 cylinder

    I can't figure figure out what's wrong with my car. It's a 2006 3.6. I'm getting a misfire code. I checked the plugs and they are good. I replaced the coil Pack and still misfire. Is there anything else I'm not thinking of that could be the solution? I also out fuel injector cleaner in the car as well and almost finished the with the tank.
    Any help would be appreciated. Thanks.

    ----------

    Just in case I got the cylinder order incorrect. Can anyone tell me the order of the cylinder as in which is which? Thanks.

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  3. #2
    Kingoftypos is offline Cadillac Owners Master
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    Re: unable to fix misfire. #6 cylinder

    There still maybe a problem with the fuel injector. Fuel injector cleaner will on clean out the surface stuff, if there is a large enough junk, the cleaner won't get rid of it.

    You said that you checked the plugs, well how about swapping the plug with cylinder number 5. Since both are in the rear most, they can be swapped in 5 minutes. Because you don't need to remove the upper intake, believe me I've already been there.

    KOT
    odthetruth and Argent1 like this.

  4. #3
    jran0823's Avatar
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    I would get a compression tester out. I have seen a fair share of 3.6's with burnt valves causing a misfire.

  5. #4
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    Re: unable to fix misfire. #6 cylinder

    Quote Originally Posted by pinspade View Post
    I can't figure figure out what's wrong with my car. It's a 2006 3.6. I'm getting a misfire code. I checked the plugs and they are good. I replaced the coil Pack and still misfire. Is there anything else I'm not thinking of that could be the solution? I also out fuel injector cleaner in the car as well and almost finished the with the tank.
    Any help would be appreciated. Thanks.

    ----------

    Just in case I got the cylinder order incorrect. Can anyone tell me the order of the cylinder as in which is which? Thanks.
    Hello pinspade,

    I see other members were able to help answer your concerns. I apologize for any trouble you are going through in trying to fix this. Please keep us updated on the outcome and if you are able to resolve your vehicle issue.

    Laura M.
    Cadillac Customer Care

  6. #5
    CTSUK's Avatar
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    Re: unable to fix misfire. #6 cylinder

    #6 is the one nearest the steering wheel, looking from the front of the car its on your right hand side at the back of the engine bay

    #5 #6
    #3 #4
    #1 #2

    All the best

    Stu

  7. #6
    VaderWS6's Avatar
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    That's what I did, I replaced the wrong coil. Found out it was actually the opposite side. Replaced it and changed all 6 plugs while I was at it. Runs like a top again.

  8. #7
    pinspade's Avatar
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    Thread Starter
    Quote Originally Posted by Kingoftypos View Post
    There still maybe a problem with the fuel injector. Fuel injector cleaner will on clean out the surface stuff, if there is a large enough junk, the cleaner won't get rid of it.

    You said that you checked the plugs, well how about swapping the plug with cylinder number 5. Since both are in the rear most, they can be swapped in 5 minutes. Because you don't need to remove the upper intake, believe me I've already been there.

    KOT
    That's what I did. I switched all the plugs around and still the issue remains I'm cylinder 6.

    ----------

    Quote Originally Posted by CTSUK View Post
    #6 is the one nearest the steering wheel, looking from the front of the car its on your right hand side at the back of the engine bay

    #5 #6
    #3 #4
    #1 #2

    All the best

    Stu
    Really? If this is true then I replaced number 2 cylinder. I had read somewhere else that it was
    3 4
    2 5
    1 6. That's probably my mistake.
    Can anyone else confirm this?

    ----------

    Quote Originally Posted by VaderWS6 View Post
    That's what I did, I replaced the wrong coil. Found out it was actually the opposite side. Replaced it and changed all 6 plugs while I was at it. Runs like a top again.
    Dude I thinks that's exactly what I did. I can't wait to get off work now and swap things around and see if it resolves the issiem

  9. #8
    Kingoftypos is offline Cadillac Owners Master
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    Quote Originally Posted by CTSUK
    #6 is the one nearest the steering wheel, looking from the front of the car its on your right hand side at the back of the engine bay

    #5 #6
    #3 #4
    #1 #2

    All the best

    Stu
    This is correct. 2-4-6 is on the driver side with 2 being the most forward and 6 being closest to the cabin. 1-3-5 is on the passenger side and 1 being the most forward and 5 being the closest to the cabin.

    So again, if the problem is in 6 and you still have the old coil (the "bad one") then put it in cylinder 6. As you probably now know that the coil that you changed was the wrong one.



    KOT

  10. #9
    pinspade's Avatar
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    Thread Starter
    Quote Originally Posted by Kingoftypos View Post

    This is correct. 2-4-6 is on the driver side with 2 being the most forward and 6 being closest to the cabin. 1-3-5 is on the passenger side and 1 being the most forward and 5 being the closest to the cabin.

    So again, if the problem is in 6 and you still have the old coil (the "bad one") then put it in cylinder 6. As you probably now know that the coil that you changed was the wrong one.

    KOT
    Thank I appreciate it greatly. I will swap them and let you guys know.
    Thanks for the help.

  11. #10
    pinspade's Avatar
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    So that was the issue. I had replaced the wrong coil. I simply I put the coil where it should have been now it purrs.

    A pretty easy fix as well.

  12. #11
    Kingoftypos is offline Cadillac Owners Master
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    That's great to hear. Good job.

    KOT

  13. #12
    CTSUK's Avatar
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    Re: unable to fix misfire. #6 cylinder

    Good thing about the 3.2 is the coil is all one piece for one side so you cant get it wrong, quite easy to do with the 3.6 though!
    Glad you got it sorted in the end!

  14. #13
    Kingoftypos is offline Cadillac Owners Master
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    Quote Originally Posted by CTSUK
    Good thing about the 3.2 is the coil is all one piece for one side so you cant get it wrong, quite easy to do with the 3.6 though!
    Glad you got it sorted in the end!
    Yeah but if one goes bad on the 3.2/2.6, the entire bank has to be replaced.

    Just saying

    KOT

  15. #14
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    Quote Originally Posted by Kingoftypos View Post
    Yeah but if one goes bad on the 3.2/2.6, the entire bank has to be replaced.

    Just saying

    KOT
    67.00 for one coil on the 3.6, and 95.00 for one side on the 3.2 plus less confusion makes it a little better for our setups compared to the 3.6. I haven't experienced a misfire problem due to coil packs being bad on my car though. It seems more common on the 3.6 rather than the 3.2.

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