Can't reveal sources or maybe everybody knows this all ready, but 90% of all F1 pump failures is a little $100 relay switch. When the switch fails the pump stays on. Most of you will notice the F1 pump priming itself when you unlock your doors. When the relay switch goes it will stay on and if you leave your car and don't pay attention to see if it turns off, it will run all night. It only takes a couple of hours for it to selfcombust for lack of better words. I get the switch changed after every oil change. It is coslty but for those of you not under waranty anymore $100 goes a long way. After replacing the switch my source says he/she has never seen a failed F1 pump on any car with a new realy switch. Just a little info.