Hello I'm chuck. I have a 2005 745 li that that seems to be blowing out white smoke and a little water from the tail pipe. The tail pipe also has a rattle noise after you start it up. All of this started after I had my care towed home. First it was the rattle after the towining company took it off the truck imeadiately. Next when I took it to the towining shop to let them check the rattle the said they put a wrap to hold the pipe it helped with the noise a little until I took it home. Then I noticed the smoke. Prior to these two thing the pipe did not rattle neither did the car smoke. Are there any easy fixes.