2007 Liberty front vibration: cv axle or bad engine ? I have been looking for the cause of a front vibe using a ton of great info on this forum. Started out by noticing the boot on the aft CV joint on the front propeller shaft was pretty much gone and the joint was sloppy. Removed the shaft and replaced the CV joint. The front joint was tight and moved freely so I left it alone. Put the shaft back in and it was better but still noticeable above 45 mph. Wheel bearings and ball joints seem to be in good shape but if I put my hand on the passenger side cv axle to intermediate shaft joint I can push the CV axle up about 10 degrees very easily. From everything I have read here this is not good. So this past week I took the Jeep to a local shop who said he works on a lot of Jeeps to get the cv axle and intermediate shaft replaced. He called me the next morning to tell me the drive line was fine and he is certain the vibration is actually a pulse in the exhaust system and I am going to need a new engine soon. It only has 129,000 miles on it and I would be surprised if the engine was no good any more. Needless to say I paid him a small diagnostic fee and ran away as fast as I could. I love this Jeep but can't afford a new or reman engine right now. Any words of wisdom from this group would be greatly appreciated. Thanks everyone.