2012 F-350 Lariat 6.7 SRW 2wd
I'm at about 11,8XX and now have developed a problem with the reverse sensing system. Intermittently when I put it in reverse it will start beeping like something is near but nothing is in back of the truck. It's never a steady beep but repeated beeps as if I'm approaching something. This may happen several times in succession when ever you put it in reverse or only one time in a whole day. I took it to the dealer and had my favorite Ford tech look it over and after running tests and finding that every thing was working as it should (clean and working sensors and alarm set at 6') he could not duplicate the random beeping issue. Even a call to the Ford tech hotline could not come up with an answer. It continued to be an on going issue that would never occur in the dealer's service center line ever though it was beeping at the empty big box store lot across the street from the dealer or any other place like my driveway. Finally, after several attempts while stopping at the dealer and being unable to make it show the problem, it started it's beep issue as I was backing to leave. I left it in reverse and put the parking brake on as hard as possible (engine still running) and the tech came out and verified the issue. They ordered a new module (PAM) and replaced the old one and every thing was fine for two days. But yesterday it was back to the same issue as before. I stopped at the dealer minutes later and it would not duplicate the beeping. Somehow there's more to this problem than just the sensors and module. I'm trying to figure out another angle to this but need your help! Is it a ground problem, electrical short, transmission selector switch, etc.? Has anybody had this issue? Any and all ideas will be greatly appreciated.