XJ ( X351 ) 2009 - 2019

Cylinder Numbering???

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Old 06-06-2021, 09:19 AM
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Default Cylinder Numbering???

I am trying to replace the coil pack for Cylinder #2, to hopefully correct a misfire problem.. but which one is #2?
Can someone supply a number chart or diagram? Would be very much appreciated!!
 
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Old 06-06-2021, 10:15 AM
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Here you go.........
 
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Old 06-06-2021, 10:27 AM
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eewhiz, if you open the hood of your car and stand in front of the car, cylinder 2 is the front cylinder on the right side (driver's side for you) of the engine as you are looking into the engine bay.
 
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Old 06-06-2021, 03:18 PM
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Thanks to all, so it seems like that CYL 1 and 2 should be the easiest to reach??? At least I hope, and that there is no special technique required for replacing the coil packs or Spark plugs. I have replaced DI Coil packs in Saabs and Volvos, so hopefully this will be just as intuitive??
BG44K is going in this afternoon.
 
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Old 06-13-2021, 06:44 PM
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@eewhiz, how many kilometres/miles are on the vehicle?

Quite often a misfire on the AJ133 or AJ126 is caused by a faulty injector. Try swapping the coil units and see if the misfire follows. If not, the misfire is most likely an injector.
 
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Old 06-15-2021, 05:55 AM
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NBCat, thanks for the reply, the engine has 122k miles. After replacing the coil pack, I did not have the correct spark plug wrench. Worried it may be the Direct injector. This does not look like an easy fix. The car ran for about one week without a misfire, but now is back... cylinder 2 again. Will replace the plug, but am afraid it won't help. Any advice...? Would you trust a good shop to use a Bosch equivalent GDI?
 
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