After lots of research, I thought I'd start a thread to document some issues I've been having with my 2011. I bought the vehicle used, with 85k miles on it about 2 years ago. It has 98,000 miles now. Here's the list of issues:
1. Intermittent stall at a stop or during a turn. If I put the trans in neutral and hit the start button, it fires up and there are no issues for about 50-60 miles and then it happens again.
2. Shudder/Surging at highway speed. Seems a whole lot like the torque converter issue discussed elsewhere on this forum.
3. Massive flat spot under hard acceleration from approx 30-40mph.
4. Noticed there is no change in rpm between 3rd/4th gear in manual mode. It's like 4th just isn't there.... this is new, but I never tried manual shift until a few weeks ago. Pattern is 1st (fine), 2nd (good), 3rd (normal), 4th (nothing/no shift), 5th (fine).
Here's what's been done so far in attempt to fix the issues:
1. Intermittent stall: Took vehicle to the dealer and asked them to check for a TIPM tsb (fuel pump) update/recall record. The next phone call from them was that when they tried to update the TIPM, the whole system "bricked". They needed to replace the TIPM, PCM and Ignition Control (with new key fobs and start button). Long story... but I basically got bent over for $1700 when it was their work that fried everything. Never, EVER, take your vehicle to Brookfield Chrysler in Benton Harbor, MI. EVER. The really sad thing is, even after all of this was replaced, it didn't fix the issue. Plus, when I got it back, the fog lights would blink instead of the turn signals (a police officer was kind enough to notify me of this, with a ticket). Brookfield was kind enough to fix this problem (gratis) though. They said the tech wired the TIPM incorrectly.
2. Same old story on the shudder/surge: All current TSBs/Flashes/Updates are done and it's still there. I had an independent shop do a transmission flush and filter service, still there. Any tips/tricks on this old issue? I've heard some have had the TC replaced, or some bushings and brackets for the front diff are the culprit. Thoughts?
3. Flat Spot in acceleration: Changed spark plugs when I first bought the Jeep because I figured that's what was causing it. Didn't help. Performed a fuel injector service/cleaning, didn't help. I use mid-grade gas (here in MI, that is 89 octane), no change. Again, all updates are (dealer says) done....
4. 3rd/4th shift in manual mode is a mystery. I'm wondering if this is the case in auto mode as well, just harder to pinpoint?
Ok, GURU's! Anyone have any ideas? Is all of this stuff related somehow? Maybe the torque converter? Has anyone else with a 11-12 WK2 had this set of issues?
I was thinking a can of gas and a match would fix it.... but figured I'd ask here first.
Cheers and thanks in advance,