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The issue came back after a few months. We’re lucky another dealership opened up we could bring it to when it went into limp mode last week. They just got through replacing the whole transmission. Extended warranty covered it thank goodness but this will be the last Chrysler my wife will ever own. She liked the Cherokee rental but once she realizes it’s an FCA vehicle I couldn’t force her in that either when it comes time for the next vehicle. It’s a shame because she would have kept driving these vans the rest of her life.
What is the build date of your van? How is it doing now?
 

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We get this same transmission issue on our 2017. It is difficult to replicate. Sometimes warm, sometimes cool. A couple of times it has only happened when pulling out of the neighborhood. A couple times it has happened while slowing down and the van drops into a lower gear.
 

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We get this same transmission issue on our 2017. It is difficult to replicate. Sometimes warm, sometimes cool. A couple of times it has only happened when pulling out of the neighborhood. A couple times it has happened while slowing down and the van drops into a lower gear.
My van is currently at the dealer for the transmission "jolt" at 15 mph while accelerating. This is the third time I have taken the van in for this problem. Transmission adaptations were reset about 14,000 miles and 28,000 miles. The problem started again a last month, but I waited until the problem was happening at least once per day before making an appointment.

So now at just under 45,000 miles, I got a case# from Chrysler ((866)275-1420) and the service department consulted with Chrysler techs and the plan is to reset the transmission adaptations again, but this time another person will ride with the mechanic with a bluetooth device and check the timing of something filling up. The service adviser didn't know what would be filling up, but I assume it is something related to transmission fluid and shifting. The Chrysler techs want the amount of time to fill be a certain amount. I don't know how that is adjusted. I assume the device and van computer will communicate during the drive. So we will see.

@ChryslerCares can also give you a case# and assistance. I called the Chrysler phone number since I had an old case number from before that wasn't used since I got it after having the van in, but they started a new case number since the previous case# was too old.

I realize that some people haven't had good results with this process. I am just posting this in case it will help others. It is unlikely that the mechanics were able to repeat the problem, but since I had a case number and it has been documented twice, they are trying something in addition to clearing the transmission adaptations. There was also a transmission TSB (21-027-17) for some of the older 2017 Pacificas that helped the other shifting issues prior to the first 15 mph jolt issue.

Even if it is a temporary fix, it has been nice not having the problem for almost a year (~15,000 miles).

Here are some related threads.
https://www.pacificaforums.com/forum/377-engine-technical-discussion/3546-transmission-update-flash-4.html?nojs=1#goto_threadtools
https://www.pacificaforums.com/forum/377-engine-technical-discussion/3546-transmission-update-flash-3.html?nojs=1#goto_threadtools
 

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Update:
I got the van back today (see post 83). It seems like they performed the trans quick learn and drive learn procedure and worked on getting the filling counts on each clutch at or close to 10. I don't know how they did this, but they road tested it several times over several days and and eventually got the clutches from 5, 4, 4, 3 to B14, C9, D24, E11. I don't really know what it means, but I've included the info in case someone else understands and it is helpful.

The van shifted fine this afternoon, but it may be too soon to tell if it has solved the problem. I just hope the fix lasts at least 10,000 miles before I need to have transmission adaptations reset again.
 

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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
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
Sorry new to this. But I am experiencing the same problem. But noone feels it. Also had 3 motor mounds replaced bcz they were broken and the engine was jumping up.
 

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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
Andrea, my 2017 Chrysler Pacifica is doing the same thing as the one mentioned here. I have taken it to the dealership and they tell me that they can find nothing wrong with it. It continues to shift harder. I am planning on taking it back soon to have them look at it again. Is there any way that you can follow up with them when I do? My warranty runs out sometime next year and I don't want to be stuck with a bad transmission. Thanks!
 

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Mine does this too, especially when it's hot out. I took my Pacifica in for a recall on the computer and had a check engine light checked out. They replaced a solenoid while there. My van has been running better since, but I don't know if it was the recall item or the solenoid that made the difference. I'm patiently waiting for the kick to happen, but it hasn't happened since the repairs.
 

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I've got this same issue although its tough to replicate consistently. It happens during VERY light acceleration / semi coasting at around 20-30 mph; it almost feels like the transmission gets confused on which gear to shift into under certain load conditions and accelerator pedal pressure.

Battery died and auto start/stop light came on so had the dealer put in a new battery, a new "sensor" (not exactly sure which one), and performed the EGR recall. Haven't had the hard shift yet post repairs, so we'll see if it happens again.
 

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The issue came back after a few months. We’re lucky another dealership opened up we could bring it to when it went into limp mode last week. They just got through replacing the whole transmission. Extended warranty covered it thank goodness but this will be the last Chrysler my wife will ever own. She liked the Cherokee rental but once she realizes it’s an FCA vehicle I couldn’t force her in that either when it comes time for the next vehicle. It’s a shame because she would have kept driving these vans the rest of her life.
Guess what? It’s happening again! After countless service visits, new valve body, a NEW TRANSMISSION, but within a few months it’s starts bucking and jolting again! The trade in value on the thing has dropped through the floor. I just pray they’ll fix it again so it can run long enough to get within 10k on the trade in value! According to KBB and Edmunds I’m still 20k upside down in a 2 year old car!
 

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I have a 2017 Chrysler Pacifica 3.6L. I have had it at the dealership multiple times for losing complete power while driving,ground problem and shifting really hard between first and second gears. Today my wife and I were four hours from home and it started again but really bad this time. Rpms went up really high and it wouldn’t go hardly at all. We pulled over into gas station and turned it off. We cranked it back up and the check engine light came on. The shifting problem has been going on for months, we took it to Salisbury Gerry wood Chrysler multiple times and they told us it’s just trying to find the gears and it’s perfectly normal. It started today after we were on interstate and got into a traffic jam at really low speeds. It started jerking really hard multiple times. A 4 hour trip took us 6.5 hours. Does anyone know what the **** I can do??
 
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