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#21
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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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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior Dallas |
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#22
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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
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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 Sent from my SM-A730F using Tapatalk
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"When the Team Chief said.... You're trapped in a hole with nothing but a goat and a slinky, what do you do? Stubby said, I'm not sure but it won't end well for the goat...." ~(Overheard) Last day, Phase 3, Q Course |
#24
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Quote:
This has been an issue for me as well.
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02 BMW 5 Speed Supercharged Ethanol Burnin Meth Injected E53 |
#25
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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!! Sent from my SM-A730F using Tapatalk
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"When the Team Chief said.... You're trapped in a hole with nothing but a goat and a slinky, what do you do? Stubby said, I'm not sure but it won't end well for the goat...." ~(Overheard) Last day, Phase 3, Q Course |
#26
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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....
Sent from my SM-A730F using Tapatalk
__________________
"When the Team Chief said.... You're trapped in a hole with nothing but a goat and a slinky, what do you do? Stubby said, I'm not sure but it won't end well for the goat...." ~(Overheard) Last day, Phase 3, Q Course |
#27
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Quote:
No laughing here. If it is able to be repaired, all is well.
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02 BMW 5 Speed Supercharged Ethanol Burnin Meth Injected E53 |
#28
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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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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior Dallas |
#29
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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... Sent from my SM-A730F using Tapatalk
__________________
"When the Team Chief said.... You're trapped in a hole with nothing but a goat and a slinky, what do you do? Stubby said, I'm not sure but it won't end well for the goat...." ~(Overheard) Last day, Phase 3, Q Course |
#30
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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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02 BMW 5 Speed Supercharged Ethanol Burnin Meth Injected E53 |
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