Brought my 2012 4 Door Automatic Rubicon to the dealership as it would not drive in 4 Lo. Basically would roll down hill then skid the tires and do this over and over. After a few visits to the service dept and a overnight in the bay they found that I have the wrong Transfercase. It has the 2.72 gearing versus 4.1 and the computer didn't know how to handle it in 4 lo since it was suppose to have a 4.1.
Just passing for SA something you all should consider checking
Here is a pic of the Tcase on my 2012 Rubicon... Attachment 297090
I'm not sure the computer cares if it's 2.72:1 or 4:1 People have switched and it was seamless.
Almost sounds like it may have mismtched gears in the axles too. Wonder if someone took it for a test drive and did a quck parts swap
Originally Posted by OutlawJK
Probably a Sport with rubicon stickers
Who knows what else they forgot to install
Do you have the sway bar disconnects and lockers
Worst part is that EITHER of these can be true Effin' sad but there have been instances in the past. Hope to god not the truth (Dealer trying to recover from your last Rubi) or it is time to release the krakken (And no not Cop's either LOL)
"I don't plan on rolling it lol but then again who does" - JRFire1317
It must when using the hill decent feature in 4-LO. I don't think it would matter in 4-HI as both cases are geared I believe he same in that regard.
It does not matter in 4 Hi only 4 Lo and I didn't have to engage hill decent.
Ref the poss of a swap, the jeep did not sit on the dealers lot it came from the factory this way. I plan to check the rotation of the tires to the drive shaft to see if I have the right gearing. Should be one turn of the tire to a little over 4 turns of the shaft if I understand correctly. It has the swaybar disco and the buttons for lockers. I will have to check the lockers when I can drive it in 4 lo.
I asked the dealer to pull the diff covers to make sure my gears were not what was locking up and causing damage. I will be able to see the locker but other then turning the tire I am not sure how to tell if they are 4.10's Anyone?