Eek! I drive a beater truck and now there is fog forming in the cab. This is not good., and when it did happen to me in my 1987 Ford Ranger, I thought that it was an exhaust leak coming into the cab so I was concerned about the toxic nature of this miasma. I turned the truck around aborting my trip across town. As most people do when they drive older vehicles I started to weigh the cost of repairs against the cars potential life span. Unfortunately I'm also very sentimental about my vehicles so would do almost anything to avoid having to junk them. I started on the onerous task of diagnosin...