I had a 2004 Liberty Renegade, it had a 42RLE. Had the TC shudder on reverse but only on inclines. Sold the Jeep with 100K miles on it, it did not effet the transmission performace but it was annoying.

 

Subscribed. The shake or shudder started at about 45 k miles on my 07 JKU. It's really annoying. At first I thought it was something with suspension but it only happens under load and at about 35-40 mph and 1500 rpms. I recently purchased a Flashpaq and hoping I can find a tuning that will help but I'm really interested in finding out a real solution.

 

as i have stated earlier in this thread, i have a nasty shudder from the tranny when i am in reverse and hit the gas, it is really evident on inclines. took it to the dealer today only to find out that my reverse gear is basically gone now i have to wait for chrysler to figure out if they are going to cover this under my lifetime warranty, i hope they do since my jeep is bone stock and the dealership performed the 30,000 tranny fluid and filter change just 13,000 miles ago, oh yeah this is an automatic. they gave me a 2012 ram 1500 loaner, great truck, chrysler really needs to make the hemi engine an available option for jeeps. i will keep you posted

 

I have the same problem in reverse. 2011 Rubicon w 14000 miles. It's always done it. Doubt I could back up a steep hill.

I'm taking it in for the 02 sensor flash recall and will report the problem then. From the info on this thread, so far it doesn't sound like a fix exists.

 

Even the manuals do it it reverse on hills! I initially passed it off as clutch judder however discounted that idea when I heard about the autos doing it too. I've learnt to keep the RPMs down or shift into low range to avoid it.

I'm guessing the combination of tall diff gearing and relatively tall reverse ratio (in the 6-speeds anyway, probably the same for the autos) has something to do with it.

 

I have the same issue in reverse, on an incline, more bothersome than incapacitating. Been that way since day one, now have 28K on it. I will have to mention it next time I head into the dealer before the warranty runs out.

 

DING, DING, DING! You've hit the symptoms square on the head. Trust me, there's nothing to be done but live with it. I've tried everything. Except the Hemi swap and that's next.

 

I have the same problem with my 07 and the Superchips tow tune seems to help a bit. Still has a slight shudder sometimes, but alot less than without SC.

 

I have a couple posts somewhere on this. Basicly it all comes down to a very loose and sloppy converter with a low shear, high slip fluid coupling within the converter. (Not so tight tolerance vanes that allow ALOT of fluid past each other when aligned) It is the #1 reason these trans run so flippin' hot! Lots of shear = lots of heat. However the converter was designed this way to take up "punishing loads the driveline would take when in an off-road situation" .... Punishing load from one out of 6 hampsters under the hood doing some PcP that day. Didn't think of sand and mud now did ya think tank?


The shudder itself when backing up a slight incline is not the bad part it just sure shows off how much power is being lost through this dried up grapefruit of a converter.

 

Add me to the list. Mine has done it since brand new. Sometimes I wonder if it'll even back itself up into my driveway.

A replacement TC from the dealer under warranty won't solve the problem. The TC needs to be upgraded with higher capacity springs. I ran into this with my Liberty CRD. After 4 or 5 years of complaints, Jeep finally upgraded the converter with heavier springs and the problem was solved.

This trans. is clearly barely strong enough with this converter for a stock 3.8. It's easy to see now why the guys with RIPP kits are eating trannys like candy.