2013 GC Laredo Transmission Issue - Jeep Cherokee Forum

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2013 GC Laredo Transmission Issue

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Old 01-26-2018, 07:26 AM
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Default 2013 GC Laredo Transmission Issue

Hey all... newbie here... tried searching the forums and I'm not having much luck. I've got an issue with my transmission and I'm looking for input or others with the same issue. 2013 Grand Cherokee, 106k miles. Bought it in January 2016 with 85k miles (this is my second Jeep.. I'm hooked). Didn't notice anything last winter, but back in October when morning temps were below 50, I started having problems with my 1-2 shift. Once the transmission is warmed up (5-7 miles) everything is smooth as silk. When it's cooler, that first shift is somewhat of a slam, and then some minor jumping for a second or two, then things smooth out in higher gears. Had the transmission flushed in December. There was a TSB for the transmission control module, so I had that firmware flashed but it didn't help. Any thoughts? I'm not a mechanic, but it seems to me that if it only happens when it's cooler outside, and it only happens until the transmission is warmed up it's some sort of solenoid or switch that is sticking. Thanks for any input. Hoping to get it resolved soon.
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Old 01-28-2018, 07:14 PM
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Isn't that one of those transmissions with more than one filter? (Somebody else can check me on this.) It might be worth your while to get the full filter job done on it. It's not too expensive to do, a couple hundred (tops), and can save you thousands. When the pan is dropped during the process it may reveal other issues (or hopefully, indications of normal wear). Either way, the front pump (and seals) may have suffered. A full drain-down (including torque converter, if possible) with filter(s) replaced should put you right back in the pink again. (ha-ha, that was a joke son ... pink ... as in healthy trans fluid ... get it?)

In the future, when starting in very cold weather, let the Jeep warm-up with the park brake set (gently) and the transmission in Neutral (a valid tip courtesy of Dave1123) before you drive away expecting everything to work perfectly right out of the gate. Oh yeah, almost forgot to remind you to release the park brake.

Last edited by Cherryokee; 01-28-2018 at 07:21 PM.
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Old 01-29-2018, 06:29 AM
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Thanks for the tip, @Cherryokee.... I'll look into that. I have read through several forums and have only found a few cases described exactly like mine, and those were from vehicles still in their break in period several years ago. And there has been limited feedback on the issue on those posts, so no real direction. I'll talk to the shop about your suggestion, and in the meantime I'll try warming it up with the brake set and tranny in neutral. Hadn't thought of that. I typically warm it up in colder weather anyway, but obviously in Park it's not going to affect the transmission. I still have a hard time accepting that there's actual damage, as things smooth out after 5-7 miles, but having everything else checked while it's opened up makes sense.

Thanks again for your suggestion!
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Old 02-28-2018, 09:53 AM
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Update 2.28.18 - Took it to my local garage, they found an open TSB for flashing the TCM. Symptoms didn't match exactly, but they thought it was worth a shot before digging deeper. Had that done, no difference. Took it to a local transmission shop. They tested it and found the following:

"TRANSMISSION GOES TO FULL CONVERTOR APPLY AT SAME TIME AS 1-2 SHIFT MAKING SHIFT FEEL HARSH. TRANSMISSION IS BEING COMMANDED TO DO SO BY THE TCM, BUT CAN SEE NO REASON FOR IT TO COME ON AT FULL APPLY? ALL OTHER PARAMETERS SEEM TO BE NORMAL".

So... they talked to their engineers, and after a day of working on it they had no solution. I talked to another transmission shop, gave them all the history, and of course all they say is "you'll have to bring it in, $104 diagnostic whether we can repair it or not". So it looks like I'm gonna have to bite the bullet and take it to a dealer. SMH
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Old 03-02-2018, 09:06 AM
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Originally Posted by callmemike2000 View Post
Update 2.28.18 - Took it to my local garage, they found an open TSB for flashing the TCM. Symptoms didn't match exactly, but they thought it was worth a shot before digging deeper. Had that done, no difference. Took it to a local transmission shop. They tested it and found the following:

"TRANSMISSION GOES TO FULL CONVERTOR APPLY AT SAME TIME AS 1-2 SHIFT MAKING SHIFT FEEL HARSH. TRANSMISSION IS BEING COMMANDED TO DO SO BY THE TCM, BUT CAN SEE NO REASON FOR IT TO COME ON AT FULL APPLY? ALL OTHER PARAMETERS SEEM TO BE NORMAL".

So... they talked to their engineers, and after a day of working on it they had no solution. I talked to another transmission shop, gave them all the history, and of course all they say is "you'll have to bring it in, $104 diagnostic whether we can repair it or not". So it looks like I'm gonna have to bite the bullet and take it to a dealer. SMH
Hello callmemike2000,

We're sorry to hear you've been having a hard time with your Jeep. If you decide to visit a Jeep dealer, feel free to send us a direct message. We'd be glad to get this over to a Case Specialist for further handling once the appointment has been confirmed.

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Old 03-02-2018, 09:36 AM
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Originally Posted by JeepCares View Post
Hello callmemike2000,

We're sorry to hear you've been having a hard time with your Jeep. If you decide to visit a Jeep dealer, feel free to send us a direct message. We'd be glad to get this over to a Case Specialist for further handling once the appointment has been confirmed.

Jasmine
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Thank you. I have it scheduled to go into my local dealer on 3/12 and will update here on the results. The Service Manager read the report from the transmission shop and said "that's crazy"... I told him that's what the transmission shop said too. Hopefully I don't get killed on a bunch of diagnostic time and unnecessary fees since I've done a lot of the research for them. OEM dealers scare me, LOL
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Old 03-02-2018, 12:40 PM
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Originally Posted by callmemike2000 View Post
Thank you. I have it scheduled to go into my local dealer on 3/12 and will update here on the results. The Service Manager read the report from the transmission shop and said "that's crazy"... I told him that's what the transmission shop said too. Hopefully I don't get killed on a bunch of diagnostic time and unnecessary fees since I've done a lot of the research for them. OEM dealers scare me, LOL
Hello callmemike2000,

I'm glad to hear you have a visit set. We look forward to your future updates and hope you have a great weekend.

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Old 03-13-2018, 02:34 PM
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Update 3/13/18 - Dealer had the Jeep for the day yesterday and confirmed the symptom, confirmed what the transmission shop noted, but they don't have a solution yet. Service Manager said he has never seen anything like it and it makes no sense. That inspires a lot of confidence, LOL. They kept the vehicle for a second night and as of 2:30 this afternoon I've still not heard anything.
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Old 03-15-2018, 12:32 PM
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Originally Posted by callmemike2000 View Post
Update 3/13/18 - Dealer had the Jeep for the day yesterday and confirmed the symptom, confirmed what the transmission shop noted, but they don't have a solution yet. Service Manager said he has never seen anything like it and it makes no sense. That inspires a lot of confidence, LOL. They kept the vehicle for a second night and as of 2:30 this afternoon I've still not heard anything.
We appreciate you keeping the forum in the loop, callmemike2000. As mentioned, I can get this over to a Case Specialist if an additional layer of assistance is needed while in service. We're available via direct message and will need your VIN if interested.

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Old 03-15-2018, 02:02 PM
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Update 3/15/18 - Day 4 for the Jeep at the dealer. They have continued to confirm that they see what's happening, but they don't have a fix. Service Manager said they've been following diagnostic instructions from the mother ship, uploading multiple profiles to the TCM or whatever... Jeep Cares did contact me by phone yesterday to inform me that they've contacted the dealer and confirmed pretty much everything the dealer has told me. So... no answers, 4 days without the vehicle, and nobody can tell me how much this is costing me. I've expressed my concern about paying ridiculous diagnostic fees. He said they have a standard $115 labor charge for diagnostics "unless they run into something really abnormal". This has been my fear about going to a dealer from the very beginning... I'm pretty concerned now that they're going to continue to be vague about the cost of this, and then if/when they find a solution they're going to tack on a bunch of BS diagnostic fees. I'm also pretty anxious about what's going to happen if they don't figure it out. Four days of rearranging meetings and appointments because I don't have a vehicle, and there's no resolution in sight. Still trying to be patient, though.
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Old 03-16-2018, 11:25 AM
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Update 3/16/18 - Well... got the call this morning. Apparently they went through all the prescribed troubleshooting and the solution will be replacing the torque converter and valve body. $2500.00. That's a shame. It'll be hard to have confidence in it now. I've treated it well and kept up on the maintenance. Never hard on the thing at all. First vehicle I've owned in 33 years that had a transmission issue, and this is at 106,000 miles. It almost feels like they don't know for sure what the deal is so they're just replacing the majors and assuming that will take care of it.
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Old 05-13-2018, 10:14 AM
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Mike any update?
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Old 05-14-2018, 06:53 AM
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Mike any update?
They did end up replacing the valve body and torque converter. The hard 1-2 shift issue does seem to be gone. I've taken a couple short road trips without any issue. I guess I should be thankful that the problem is fixed, but I'm still a little bummed that the first repair I had to have done on this vehicle cost me 10% of the purchase price.

I was on the road yesterday at highway speeds for several hours (60-70 mph) with the radio off and did notice what I can only describe as a mechanical "hum". I haven't determined yet if it might have been the tires humming or if it was something from the transmission, but it didn't change pitch or volume when the road surface changed so that's something I'm going to keep my eyes (and ears) on.

Are you having the same issue?

Last edited by callmemike2000; 05-14-2018 at 06:54 AM. Reason: grammar and added a question
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Old 05-14-2018, 11:31 AM
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Thanks Mike for the update. My problem is somewhat different. I have the hard 1 to 2 shift but not all the time. It occurs perhaps every 3rd or 4th shift and cold or hot doesn't seem to make a difference.
I may look into replacing the solenoid as it has been suggested that could be the issue. The cost for the Mopar version is around $250. I may order one and have it replaced or do it myself if the issue persists. I did change the tranny fluid and replace both filters the other day so perhaps with a few more miles it may cure itself.
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