Hi I have a 2005 5.7 GC and when you reverse or drive forward at low speeds and turn slightly (really bad when cold) you get a bad shudder through the whole vehicle.
Been at dealer and they put some more Mopar additive in the rear diff but no change. When I picked it up the abs and service 4wd/service brake system displays came on when driving it home.....grrr
They are not sure now whether to look in the diff or do these have a viscous hub...any suggestions would be appreciated
Its really hard to tell you can feel it through the steering wheel and shudders the whole vehicle, to me feels like diff baulking. I drove aroun for a day so the additive should have worked in to the clutch packs etc
Thanks guys. I have had this Jeep for a week and it is testing my patience.
Now I have the ABS light coming on and the "service 4wd system and electric brakes"
Went back to the dealer and they did a scan. They said the r/f wheel speed sensor was reading 11kms less then the other 3. Drove around all day no problem now tonight the light is back on. Being Xmas and all I can't get it sorted and am planning on towing my jetskis away next week.
I don't think it is tire scrub as its pretty servere and does it when you just slightly turn doesn't have to be on hard lock.
Hey man I had the same problem with my 05 limited. My 4wd light would pop on when i hit a bump in the rain and stuff like that and then one day it popped on and i had that real bad jerky motion in the rear and it turned out to be a bad tire sensor in my left rear that was making the 4x4 system do some weird technical things. So you might check into that and maybe see if that has anything to do with it.
I put some additive in the front diff but still the same. The oil looks real clean and this Jeep only has 63,000kms (39,000miles) The ABS light goes off and stays off for quite some time at times. I did manage to get a P0585 code out but that seems to be a cruise control code.
Thanks for your help I will keep looking and if I can't find anything will have to drop it at the stealer.
I had some really nasty crow hop in my 06 Ltd 5.7 when I bought it. Upon further inspection, it was evident the diffs and t-case had never been touched (39k miles). The stealership pulled the 'adding more additive' number on me and it didn't fix a thing. I drained both diffs and refilled with the Redline 75W140 with the friction modifier already in it, then did a drain-and-fill with the Mopar fluid in the t-case. Thing rode like it was on glass rails even with the steering all the way to the stop.
In stark contrast, a buddy of mine had nearly identical symptoms, so he did the same thing I did. Didn't help at all. He took it to a local shop where they hooked it up to some fancy computer doo-hicky and told him the left front speed sensor wasn't functioning properly. He replaced the speed sensor and all was well.
I'm a fairly new Jeep owner. These animals seem to be quite fussy sometimes when diagnosing a problem.
The shuddering ended up being the LSD in the rear diff. The dealer put a used diff in it and now it is noisey so back to square one really !!!. They also changed my ABS wheel sensor only to find out it was a pin not making good contact in the plug !!
I am a new jeep owner and when the truck is in reverse when cold the truck feels like its jumping... like the diff has not locked in yet. This only happens when the truck is cold its around 0-10mph its like a shuddering then goes away..Could someone please help me!!!!!!!
I just started noticing the same thing...first thing in the am, when cranking the wheels in reverse...shuddddder!
The fluids should be fine...replaced then not long ago. What's the consensus, speed sensor? Where are they located? Could it be possible that road salt has contaminated them...it just started happening after we had some snow.
I had a similar problem, ABS & Traction control warning lights coming on, hard to turn, low MPG. Changing the speed sensor sorted it.
Seems the traction control "senses" a skid & brakes the faster wheel.
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