You can also have a small crack in radiator that is only gassing at high temperature. Check upper thermoplastic end for evidence of what looks like a water drip on a dusty surface.
OP had 140000 on his engine at water pump failure time. Is there any general time period that these things fail? This is probably the biggest thing I hate about my edge - a ticking time bomb that everyone knows will need to be replaced at some point yet it is a $1500 job.
Mine initially threw a code - for like a day - so I was in the ball park on where my issue was. I had intermittent erratic idle and difficult to start after fueling. I did a search on here and found others with same issues. Thankfully the part is easy to get to and cheap.
Reboot of computer corrected my audio. Thanks for the report.
Would like to see the SuperTech oils tested when possible. Have saved a lot of money using their products over the years and have used the Schaeffer Oil analysis showing good performance and have given me good results in my 1996 Toyota truck at 299,967 miles.
mo-lib-de-num
Just went through this one in my 2012 SE and it was the purge valve. Initially noticed odd idle then difficult to start after refueling. It did throw a code which pointed to the purge valve but went off after a drive cycle or two. Thankful it was easily accessible and did not require 10 hours of engine tear down to access!