[booradley]

Took my 2010 Sahara 4 speed slush-o-matic back to the dealer this week. It has 4000 miles on the clock. Mods are CAI, TBS and Corsa Exhaust. Now the shop foreman takes a spin with me and feels the "bump down" slightly in the second to last gear and more pronounced in the third to last. He states maybe you should drive another 2010 to see if they all do this, and I tell him well haven't you driven other 2010's and do they do this? No reply. He takes it back to the shop and tells me he will re-flash the trans. I tell him drop the pan and change the fluid and filter, he states NO not necessary/ Well enter the Service Manager who first of all announces my first name wrong and murders my last name, while doing it in public, and since I was a few feet from him and the shop Foreman who saw me and knew me, I was not happy. That is Customer Service 101. Well the S.M tells me he drove it, nothing is wrong, it does bump down, but that is normal and why don't I drive another Jeep. He proceeds to tell me my alterations, CAI, TBS and Exhaust have something to do with shifting????? They are all connected he says and intimates my warranty is in jeopardy. I maintain composure and tell them they are wrong. I want the trans fluid and filter changed and I will pay and they refuse to do it!!! I tell them so let me drive another 2010 and they put me off, saying how about next time. I tell them if this Jeep breaks down and I have it towed, I am not going to be happy. They are not happy since I went to Jeep in two letters and three phone calls, Jeep Customer Service is not the greatest, they told me to take it to another dealer to have it checked, yeah right. Bottom line this trans is funky and are there other owners/operators out there with Bump Shifting (Down Shifting) issues?? Thanks

[Liquor]

Originally Posted by booradley

Took my 2010 Sahara 4 speed slush-o-matic back to the dealer this week. It has 4000 miles on the clock. Mods are CAI, TBS and Corsa Exhaust.

Now the shop foreman takes a spin with me and feels the "bump down" slightly in the second to last gear and more pronounced in the third to last. He states maybe you should drive another 2010 to see if they all do this, and I tell him well haven't you driven other 2010's and do they do this? No reply.

He takes it back to the shop and tells me he will re-flash the trans. I tell him drop the pan and change the fluid and filter, he states NO not necessary/ Well enter the Service Manager who first of all announces my first name wrong and murders my last name, while doing it in public, and since I was a few feet from him and the shop Foreman who saw me and knew me, I was not happy.

That is Customer Service 101.

Well the S.M tells me he drove it, nothing is wrong, it does bump down, but that is normal and why don't I drive another Jeep. He proceeds to tell me my alterations, CAI, TBS and Exhaust have something to do with shifting????? They are all connected he says and intimates my warranty is in jeopardy.

I maintain composure and tell them they are wrong. I want the trans fluid and filter changed and I will pay and they refuse to do it!!! I tell them so let me drive another 2010 and they put me off, saying how about next time. I tell them if this Jeep breaks down and I have it towed, I am not going to be happy. They are not happy since I went to Jeep in two letters and three phone calls, Jeep Customer Service is not the greatest, they told me to take it to another dealer to have it checked, yeah right.

Bottom line this trans is funky and are there other owners/operators out there with Bump Shifting (Down Shifting) issues?? Thanks

< < < FIXED > > >

easier to read...

i havent heard about this issue before. ill keep my eyes open for other complains. maybe they will be able to assist

[JLC08JK]

Originally Posted by Liquor

< < < FIXED > > >

easier to read...

I haven't heard about this issue before. I'll keep my eyes open for other complaints, maybe they will be able to assist you.

FIXED

[chevychad]

Don't take this as a technical answer, or the gospel or anything, because I am not a transmission specialist. I am however a line tech. I have noticed most chrysler/dodge/jeep vehicles with automatic transmissions seem to have this type of trouble at some time or another. I'm not however saying it is normal, or that all vehicles do or will do it. If it is doing what it sounds like it is doing, chrysler does have a "trouble tree" to follow to correct it. Bump shift as they call it, is when the transmission jumps down a gear hard under decelleration, or when at coast and applying the accelerator, and it bumps hard, almost as if you were rearended at low speed impact. Sound like your problem? The shift selenoid pack on chryslers will develop a leak and cause this, or I have heard of a internal leak of some kind that supposedly causes this, and yes I have heard of dirty fluid, or filter causing this. I also know on my '06 sebring, @ 21,000 miles I was getting an annoying bumpshift and corrected it with a later release reflash. Same thing happed on my '08 town and country at about 15,000 miles. And a reflash solved it aswell. I have little knowledge of the auto in the wrangler, but I doubt much has changed with chrysler auto's so maybe you could see if there is a reflash available for yours.

[booradley]

They allegedly reflashed the transmission and it still does it. I like your comment about the shift solenoid leak. Yes it feels like a love tap from the stern, and I have driven for many years and this is just not right. I hate to let it progress, but having friction with your dealer is not always healthy. They can become such antagonists and refuse to cooperate and solve the problem. This trans is due to be eliminated more than likely in 2012. They must have a ton manufactured and they need to get rid of them? I am sorry I did not chose the standard transmission, too lazy and getting older. Thanks again for your insight.

[chevychad]

They have had problems with the standard transmissions aswell. And like I say, I haven't much insight on the wrangler auto. Yes friction with the dealer is bad mojo. If you don't have an alternate dealer in your area, I would give chrysler (jeep) corporate a call, and ask for a number where you can reach the rep in your region. I would make him, and corporate aware of how unhappy you are, and of the issues at hand. I would also ask that the rep, personally come down and see your jeep (he will likely do so and bring a field engineer with him) This is probably the best case scenario with your case. Or have a transmission specialty shop inspect it and have them print you out a detailed diagnostic, then fax a copy to corporate, and take one to your dealer. I have actually had to pay aftermarket shops before, to do what should be warranty then get reinburrsement from the manufacterer. Due to dealer troubles such as your own. Sorry to hear the reflash didn't help yours any. It did wonders for my sebring, and van, although I had a hell of time getting them to reflash the sebring, even though it was a wide spread problem on those cars. Although the selenoid pack leakage has been an issue on multiple chrysler/jeep/dodge vehicles for years, I honestly don't know if that setup is used on the JK. Hoping we have a transmission tech on the forum that can spread light on this.

[JIMBOX]

I've got an '08 JKU Rubi/auto that I've modified (lift/tires/aux coolant) and mine stiill shifts like it did when new, fairly smooth and extremely crisp in 4lo !!

Sorry to hear about your troubles !!

Good luck

JIMBO

[montero1]

Mine only does this in 4 low, thank god.

[KPJ]

Just note that by federal law any qualified shop can do warranty repairs, not just dealers.

Of course the shop may not want to argue with Jeep/Chrysler and you may have to to get reimbursement.

Also, FYI, my Suburban does it every so often, seemingly at random. Only when rolling slow, and it shifts into first gear. Its probably done it a dozen times in 85k miles.

[ronjenx]

Originally Posted by KPJ

Just note that by federal law any qualified shop can do warranty repairs, not just dealers.

Of course the shop may not want to argue with Jeep/Chrysler and you may have to to get reimbursement.

Also, FYI, my Suburban does it every so often, seemingly at random. Only when rolling slow, and it shifts into first gear. Its probably done it a dozen times in 85k miles.

I've never heard that.
Are there any stipulations to that, such as no dealer within so many miles?

I know having only the dealer do regular service/maintenance can't be a prerequisite to maintaining the warranty.

[TheShift]

Originally Posted by JLC08JK

FIXED

[basto]

Originally Posted by ronjenx

I've never heard that.
Are there any stipulations to that, such as no dealer within so many miles?

*******I know having only the dealer do regular service/maintenance can't be a prerequisite to maintaining the warranty.

[/PHP]
I think this is what he means, I know with Ford that some waranty repairs at some Ford dealers needs to be aproved by a field service engineer for them to be covered. They do this if they suspect a dealer of waranty fraud.

[SoCalJK]

My 2007 does it now and again. Normally as I'm about to stop. As mentioned, feels like someone rear-ending you. I'm due for a gearbox oil change so that may resolve the issue.