Check Engine Light, Shifting Issues, TPS - no fix
Hi guys, new to the garage and I appreciate you being here. I apologize in advance for such a long thread. I'm beside myself on a lingering transmission issue. I live in a town where the local mechanics say $8000 and the customers here don't bat an eye when breaking out their American Express. I'm not one of those guys. A little bit of history, I do have the 4.7 with the premium towing package yet never towed anything in the Jeep's life. In 2011, I was about 4 hours into a trip to northern Michigan, check engine light comes on, slipped in and out of OD on the express-way, 3600+ rpms @ 70mph, hard shift at lower speeds. I assumed that I was screwed. After minimal driving then a 5 hour limp drive home, I had taken it to a local trans shop. He drove it for 2 minutes and determined it was the speed governor sensor in the trans, he'll do it for $500 at the minimum. Yikes I said (could be worse though). After figuring out how the hell Im going to pay for this, the very next day, the check engine light went off, shifted like a brand new Jeep. No repair occured, just luck I guess. Two years later, it's back.......... and possibly here to stay.
Last fall, I had a weird fluctuation in my temp gauge. I could hear the fan as if I was cleared for take-off. After a day of this, I pulled to the side and shut off my engine due to the gauge closely reaching the red. Let it cool, drove home a mile. Popped hood, found "orange" sour cream-like crap everywhere. MF'er, I F'd my engine...... then I saw the Oil was clean. Couldn't say the same for the trans dip stick. This was repaired and flushed many times with MOPAR trans fluid ($$$). I was told that the clutch plate could be damaged from the coolant, time will tell. I had no issues until that light came back a week ago (June 2013).
Same issue as a couple summers ago. Shifting rough, check engine light, acts as if I'm ridding in 3rd gear. At one point, after putting in reverse then drive, acted as if my clutch was indeed gone, high rpm, no go. Well, disconnected battery, check engine light gone, shifted just fine like a new jeep, then that light came back. Changed TPS as recommended. Bought part from Advance Auto. I was then told, that stuff is garbage and probably wont work. It didn't. I went to the Jeep dealer and bought the MOPAR, didn't shut the light off. I had read forums, all members with same symptoms, TPS TPS TPS was the resolution. It didn't do it for me. It cant be mechanical, when the light is off, shifts perfect.
I can fix people per my profession, but cars not so much........and being frugal..... I'm hoping that you professionals can steer me the right way without having to pay $1000's (I may have to).