My van is still running hot and I'm running out of ideas.  Here's what happened.  The temp gauge needle was always positioned just below the LED since I bought the van.  Sometime in August ist started climbing up to just above the LED.  I think something must have changed/broken in the system an I start trouble shooting.  What I did so far:
 
Changed coolant and bled system.
Changed radiator, bled system.
Changed thermostat, bled system.
Changed water pump, bled system.
 
Nothing I did had an effect on the position of the needle.  I don't think it's the temp sender because the radiator fan is also coming on more frequently.  It looks like the coolant actually gets warmer than usual.  I'll replace the sender anyway, just to be sure. 
 
At this point I have no idea what else to try.  Please let me know if there is anything I have missed.
 
Thanks,
Peter