Shifting from 4th to 5th - Page 3 - 2014+ Jeep Cherokee Forums
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post #21 of 22 (permalink) Old 01-11-2017, 08:15 PM
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I noticed this just a little, not anywhere near the extremes mentioned in this thread. However, when I was in for an oil change a couple of months ago, and the dealer did a couple of reflashes, I have not noticed it at all. It would be the 4-5 shift, going about 40mph and then letting off the accelerator just a little.... I'd see it about 1/2 mile before I got to work, in the same spot which was a slight uphill grade. After the reflash, I have not felt it again. And its been about three months now.
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post #22 of 22 (permalink) Old 01-11-2017, 09:06 PM
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Originally Posted by Array View Post
No. If you read a conflict between what I said and the guy's video, I probably worded something confusingly. I thought the guy's video was very good.

Another thought: The way you said "the dog clutch is used when changing from 4th to 5th gear, and 7th and 8th gear", you may be thinking the dog clutches (there are two of them) are only used to accomplish the shift. Actually the dog clutches stay engaged through a number of gears as shown by the 'X' marks in the chart I posted. This 9-speed transmission has 4 planetary gear sets and often times multiple clutches must remain engaged to get the gear ratios desired. The video by John D. Kelly I posted makes this very clear.
Gotcha. I'll see if I can find the time to watch the video at some point.

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