Two problems related to power steering fluid have been reported for the 2007 Jeep Wrangler. The most recently reported issues are listed below.
The past couple years I've noticed my Jeep having a wobble while crossing 60mph, below 57 it stopped above 63 it stopped. I had new tires and balance completed. The wobble was still present. While driving down a 4-5% grade on state route 285 (4 lane divided highway most of the way) I touched the brakes and the front end started to violently wobble. . Enough to rip the steering wheel from my hands. This almost put me into oncoming traffic. The wobble finally stopped at 25mph. The tires chirped in tune to the vibration. I have to assume from loss of contact with the road. The vehicle jerked side to side during this wobbling. Once stopped I checked under the front end and only noted that my stabilizer was now leaking fluid and was bent. This happened around July 18th with my 8 year old in the vehicle. Once I was able to get the vehicle back to town I took off the old track bar, did this due to the overwhelming number of posts on the internet. I took off the original bar and noted the back side of the upper and lower brackets "hollowed out" or oblonged. I removed the track bar and placed the bolts back into the mounts and wiggled them to assess if the mounts were out of round. I noted the bottom back mounting hole had approx. 1/4 inch of movement and the top back mounting hole had 1/8 inch of movement. I am currently seeing a Jeep certified mechanic to have stainless steel washers added to the brackets to eliminate the source of the shaking. The mechanic stated this is a known issue that the brackets were made thinner then previous years. He also stated the "washer" fix is also a known solution to this issue. However I noted there isn't a smooth pivot surface on the bolts they are threaded and ate into the steel insert in the track bar bushing. I expected to find a bolt with a smooth surface for the bushing to ride on and threaded end for the nut.
About a month ago, as we were traveling on the highway, my Jeep started to violently shake as we hit a bump going about 60 miles per hour. It felt like we had a flat tire so we quickly pulled over. We checked the vehicle and couldn't find anything wrong. Since it continued to drive fine, we didn't think too much about it. Three weeks later, driving again on the highway, the same thing happened, this time much worse. The vehicles shook so violently I had a hard time controlling it. This was especially scary because the roads were wet. Luckily, we were seat belted in, but my poor dog got tossed around like a salad. Shaking, and very upset, we pulled over to the side of the road. It continued to happen two more times. The next day we immediately took the car to our mechanic. Although he couldn't find anything at first, we did some research. We went to the internet and typed in the search Jeep violently shakes. ¿ we were quite surprised and shocked with what we found. Apparently, this is a problem that has been occurring for years with Jeep. It has even been termed the death wobble because of all the problems. We found thousands upon thousands of people with this similar problem dating all the way back to the early 90s. With all these problems, Jeep has not issued a recall on 2007 models but apparently will gladly charge their customers hundreds of dollars to fix parts that may not fix the problem. The main problem appears to be with the steering damper. The damper is too small. Although Jeep wont officially recognize this as a problem, it has been fixed with the 2010 models by putting in a larger damper. When I called a few dealerships to find the part, I was told the damper doesn't exist in my model. I was able to find a 2010 damper and had my mechanic put it in my vehicle. The one that he replaced was not only twice the size of the existing one, but the existing one was leaking fluid.