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Somewhere between 30 and 35 mph and around 2000 rpm, we get a hard shift as the rpm's drop to 1500. It doesn't always happen, but when it does, we can feel it shift and normally get a clunk sound with a slight hesitation. Sometimes we just get the hesitation (slows down for a second, then speeds back up). It didn't happen on our way to breakfast this morning, but did several times on the way back. Transmission temp was @ 136. About a month after we bought the vehicle, we were leaking transmission fluid, they replaced a cover and the work order showed that they added fluid at that time. I haven't seen any leaks since, but I'm wondering if the fluid level is a bit low.

Should I be concerned? I don't know what gear that is, but I remember that someone had posted a list of gears vs rpm vs mph a while back. I guess it really doesn't matter what gear it is though...
 

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Somewhere between 30 and 35 mph and around 2000 rpm, we get a hard shift as the rpm's drop to 1500. It doesn't always happen, but when it does, we can feel it shift and normally get a clunk sound with a slight hesitation. Sometimes we just get the hesitation (slows down for a second, then speeds back up). It didn't happen on our way to breakfast this morning, but did several times on the way back. Transmission temp was @ 136. About a month after we bought the vehicle, we were leaking transmission fluid, they replaced a cover and the work order showed that they added fluid at that time. I haven't seen any leaks since, but I'm wondering if the fluid level is a bit low.

Should I be concerned? I don't know what gear that is, but I remember that someone had posted a list of gears vs rpm vs mph a while back. I guess it really doesn't matter what gear it is though...
Hi ezdays,

Sorry to hear about this! If you decide to visit your local dealership for further diagnosis I'd be happy to follow up with them for you if needed. Just PM our page with your VIN and let me know.

Andrea
Chrysler Social Care Specialist
 

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Discussion Starter #3
Hi ezdays,

Sorry to hear about this! If you decide to visit your local dealership for further diagnosis I'd be happy to follow up with them for you if needed. Just PM our page with your VIN and let me know.

Andrea
Chrysler Social Care Specialist
Thank you Andrea, I'll let you know. This just doesn't appear to be normal, nor does it seem to be going away. I will contact you when I think I'm ready to take it to the dealer.
 

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Curious what came of this for you?

I'm also hearing a not so good noise intermittently. Usually when going from under acceleration to not -- or the other way around. Not hard acceleration, even the lightest touch will do it (sometimes). I haven't noticed the RPMs, but it must be low, like 2000. It's like something is loose. A clunking sound. Almost like an engine or transmission mount.

Another possibility came up when searching on here -- I found this which may explain why it's so hard to reproduce -- I'd have to know which gear I'm in and which gear it shifts to when accel/decal --- ZF's 9-Speed 9HP Transmission Puts Dog Clutches On The Leash (sorry can't provide link). Since Chrysler didn't give me any indication of the current gear, I have no way of knowing I guess except counting the shift points and trying to force it to jump back and forth between 4 & 5.

Dealership said they checked everything and couldn't reproduce. Of course, it's most noticeable with the windows down and the radio off and no noise whatsoever (which is hard, since this is the loudest vehicle I've owned in the last 20 years). I have no doubt the test drive was windows up, radio blaring, and going 65 mph on a rough patch of road. Especially because it happened to be raining that day.

Truth be told, it hasn't done it lately for me. But I'm worried like crazy because it doesn't seem normal and we're already at 10k miles. I know I'm not crazy though -- the first time it was really bad, I looked at my wife (who drives a lot more than me) and she says "oh yeah, it does that all the time."
 

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Discussion Starter #6
It stopped for a while, just about the time I had the oil changed, I thought that was just coincidental since one had nothing to do with the other. Just as I thought it was gone, it started up again. Not very often, not enough that I think a dealer could duplicate it, but once in a while, around 30-35 mph and around 2,000 rpm, I get a hesitation and a noise as it shifts and the rmp's go down to around 1500. Most times I don't feel the transition, but just when I forget about it, it hits again.

I have not taken it to a dealer yet, right now, we're in the process of moving and my wife's in the hospital so I can't spend even an hour in the dealer's waiting room to have them tell me that they can't duplicate it.
 

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Interesting. This sounds similar to a problem I had with the Odyssey. I think it was solved by solved by a simple software update for the torque converter. I wonder if it could be the same.
 

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My experience as well -- dealership can't repro something that is intermittent. Understandable, but where does it leave all of us?
 

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We had ours in for a similar sounding problem. It jerked at around at 30 and 60 mph, +/- a few mph. The dealer "retrained" the transmission, but only did that after we contacted corporate about our mounting problems (previously denied problems). The retraining has altered the location of the jerking acceleration, but has not eliminated it. We will again be visiting the dealer soon to have this dealt with, as this not acceptable on a new car. This is exactly how the transmission on my Sienna behaved, but it has over 250k miles on it and was near death. I am not confident this Pentastar is going to last to 250k, let alone to the 60k warranty expiration.
 

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Discussion Starter #10
Still having the problem, but it can go for days without a had shift even under similar conditions and speed, then it happens, "thunk" and it feels like the transmission threw a gear, then back to normal for days or even a few weeks before it happens again. Unless there's a fix for a known problem, I still can't see leaving it at the dealer for God knows how long and have them not be able to recreate it. And even if they did something, how will they know they fixed things when it happens so infrequently? Unless, as I said, it's a common problem with a known solution.
 

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I am having the exact same issues so very interested in hearing if you had it resolved. We have been unable to get it resolved at the dealer as they cant replicate it. Extremely frustrating. All the same symptoms.
 

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Ours does the same thing. Has a very sluggish shift around 20 mph and it's like it hesitates and you have let off the throttle but you have not. It then shifts extremely hard and slams into gear aggressively. Very frustrating as it is intermittent and not every time. Please keep us updated. Chrysler please update us owners with what happens.
 

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Ours does the same thing. Has a very sluggish shift around 20 mph and it's like it hesitates and you have let off the throttle but you have not. It then shifts extremely hard and slams into gear aggressively. Very frustrating as it is intermittent and not every time. Please keep us updated. Chrysler please update us owners with what happens.
Hi MXZ1983,

Sorry to hear about this! If you decide to visit your local dealership for further diagnosis I'd be happy to offer assistance if needed. Just send us a PM with your VIN and let me know.

Andrea
Chrysler Social Care Specialist
 

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did anyone every resolve this issue? I own a 2017 Chrysler Pacific myself and have been having the same issues since the beginning. I have gone to two different dealerships since leasing this vehicle in October 2016 only to be told they can't duplicate it. It is very frustrating to be driving along in traffic, which I do a lot of, or starting off after stopping at a stop light and hear a loud cluck, almost like a hard shift that slams into the next shift, and your car jerk forward to the point you almost feel like someone has hit you from behind. It happens around the 15 to 20 miles per hour & the rpm's drop and go back to normal. Some days it happens multiple times and others it doesn't happen but once. This morning it happened three times. I literally tense up every time I am driving the vehicle now in preparation for the loud noise and jerk. I really need this resolved.
 

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did anyone every resolve this issue? I own a 2017 Chrysler Pacific myself and have been having the same issues since the beginning. I have gone to two different dealerships since leasing this vehicle in October 2016 only to be told they can't duplicate it. It is very frustrating to be driving along in traffic, which I do a lot of, or starting off after stopping at a stop light and hear a loud cluck, almost like a hard shift that slams into the next shift, and your car jerk forward to the point you almost feel like someone has hit you from behind. It happens around the 15 to 20 miles per hour & the rpm's drop and go back to normal. Some days it happens multiple times and others it doesn't happen but once. This morning it happened three times. I literally tense up every time I am driving the vehicle now in preparation for the loud noise and jerk. I really need this resolved.
"Clearing transmission adaptations" (related to software) solved the 15 mph jolt/jerk problem in my van. It was done two months ago (Nov. 28) and I've had no problems with it since then. There weren't any codes or check engine lights in my case. The mechanic had worked with other Chrysler 9 speed transmissions where this helped. There was also a transmission TSB software update and a EGR recall software update done a couple of months prior to "clearing the adaptations" (which should be done last if they need to do all three things on your van). I think the info about the transmission TSB is in one of the links below. Take some information with you to the dealer in case it doesn't make sense for them to try this. If you want to read some posts related to this, here are some links. (There is also a recall for engine software update through the NHSTA that should be available soon (March 2018?) if you haven't heard of it.)

http://www.pacificaforums.com/forum/474-chrysler-pacifica-minivan-issues-problems/27178-herky-jerky-transmission.html?nojs=1#goto_threadsearch

http://www.pacificaforums.com/forum/377-engine-technical-discussion/24761-jolt-15mph-check-engine-light-rpm-increase-no-reason.html?nojs=1#goto_threadsearch

http://www.pacificaforums.com/forum/474-chrysler-pacifica-minivan-issues-problems/25690-transmission-jolts-when-accelerating-zero-mph-post337026.html#post337026
 

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Just wanted to chime in. Yup, same experience I had about twice now since I got mine last May 2017. I thought something hit the underside of the car like a big rock or something.

Now at 11+K on the odo. Here's hoping it doesn't happen again.
 

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Every time we have taken it in to multiple dealerships they "reset" the transmission. It may resolve it for a month or two but it always returns.
 

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Every time we have taken it in to multiple dealerships they "reset" the transmission. It may resolve it for a month or two but it always returns.
Sorry to hear that whatever the dealer did didn't help. My van is still doing fine, so we will see if it goes back to having problems. The transmission software update was applied to my van, the EGR recall, and then the transmission adaptations were cleared. I don't know if "resetting" is the same as clearing the adaptations.

Chrysler Cares can check to see if this transmission update applies to your van. (It applied to mine - Sept 2016 build date.) Click on the red Chrysler Cares letters in the left margin to personal message them.

"NUMBER: 21-027-17 REV. A
GROUP: 21 - Transmission and Transfer Case
DATE: July 15, 2017
SUBJECT:
Flash: Transmission Shift and Drivability Enhancements

Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find the following Diagnostic Trouble Codes (DTCs) stored in the TCM memory:

• **P0887-00 - TCM Power Control Circuit High.**
• P1B13-00 - Park by Wire Unintended Out Of Park Position.
• P1DCD-00 - TCM Monitoring Processor Performance Multiple Clutches Locked Up.
• U0103-00 - Lost Communication With Electric Gear Shift Module.
• P1CC9 - Unable To Engage Gear.
• P1DDE-00 - Ignition Run/Start Input 1-2 Correlation.

The following improvement is also included in this update:
• Shifter interlocking improvement in an event of brake signal loss to the TCM."

Unfortunately our system doesn't allow us to see if this update has already been applied to your vehicle but your local dealership would be able to check for you. Let me know if you have any additional questions!

Andrea
Chrysler Social Care Specialist"

I asked if some of the others found another solution (even though my van is still doing ok) in case there are other options.
 
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