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  #21  
Old 10-08-2019, 12:21 PM
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I think the key here is the miss went away when you swapped the plug, injector and coil and the problem with the transmission went away.

Sometimes there are failures of the same part and since you have already addressed that possibility with replacement it is logical to believe the problem must be something else and not consider the same part(s). It happens even with new parts right out of the box.

I suggest swapping just the coil to another cylinder. If the problem doesn't move to that cylinder then swap the plug. If the problem doesn't move then swap the injector. If the problem never moves to another cylinder you know it is not those components then it is on to other troubleshooting to find the core issue.

Or, contact our resident transmission expert PPhil for input before you try anything else if you feel the transmission is causing the miss.
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  #22  
Old 10-09-2019, 01:23 AM
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When I had a miss on cylinder 1 it turned out to be the spark plug gap. Plugs were only 1k miles old ngk iridium 9’s. It is something so simple that often gets overlooked, I couldn’t believe how much better it ran with properly gapped plugs!
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  #23  
Old 10-09-2019, 01:44 AM
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I'll give it a check but I'd think that a plug gap would have been changed if the electrode got dinged upon installation after being gapped and my misfire started months afterwards with no other removals.

So far I've swapped out the coil and the injector with an old spare set and the problem was gone for several days then back. Plug looked fine (didn't check the gap that time) this weekend I'll be installing the new coil and injector I ordered from the stealership after that.... no clue

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  #24  
Old 10-09-2019, 02:18 AM
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Quote:
Originally Posted by Liamk View Post
When I had a miss on cylinder 1 it turned out to be the spark plug gap. Plugs were only 1k miles old ngk iridium 9ís. It is something so simple that often gets overlooked, I couldnít believe how much better it ran with properly gapped plugs!


This has been an issue for me as well.
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  #25  
Old 10-14-2019, 08:55 AM
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Solved...

Coil wire wasn't locking in because a chip in the teardrop piece of the wire and it caused the bail to open and as time passed then the bail would end up loose and twisted.

The old coil and the reused coil both had it happen. New wire, new coil and new plug (just in case) and so far so good. The transmission is back to normal but this weekend will be an all fluids/filter change.

Although I broke my hood release today, so... Yippee!!

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  #26  
Old 10-14-2019, 08:58 AM
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I really didn't want to do an update just because of how badly I missed this fault, but if you can't laugh at yourself at least allow everyone else to do it for you....

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  #27  
Old 10-14-2019, 10:45 AM
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Originally Posted by EODguy View Post
I really didn't want to do an update just because of how badly I missed this fault, but if you can't laugh at yourself at least allow everyone else to do it for you....

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No laughing here. If it is able to be repaired, all is well.
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  #28  
Old 10-14-2019, 04:21 PM
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If one DIYS more than once or twice something we never want to tell anybody about happens. I have hundreds accumulated over the years.
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  #29  
Old 10-14-2019, 10:29 PM
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I tell you the only thing left to know now is what the misfire (electrical issue) was doing to cause the transmission to act so strange. I just can't believe that one cylinder would only cause a downshift change in 2-1 (like a Jake brake) but not have any other effect on downshift from any other gears 3-2, etc.

Maybe I should just quit looking before I find a new reason to cry online...

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  #30  
Old 10-14-2019, 10:42 PM
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[QUOTE=EODguy;1170039]Maybe I should just quit looking before I find a new reason to cry online...

Ditto...
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