First thing I did was pull off the filters and check them out. They were brown, but did not seem to be clogged. I could blow through them will no resistance (for whatever that is worth). I have also had the problem happen on a 50 degree day within 15 miles of filling up.
Rather than spend $115 on a filter set and $60 on the orings (which is crazy!) I am going to buy a complete pump assembly and have a back up pump to carry.