OK..I left home on another 94 degree day. Air conditioner pumping out cold air like it should and engine temp staying right in the middle as always. Up hills...down hills...flat road...stop lights.... high speed...low speed....all the regular driving. No problems. Probably a total of 30 -40 miles of driving, only 160 pounds of scrap metal and an old air conditioner in the trunk that I dumped off at recycling. No problems.
My last 2 miles home, I all of a sudden smelled the smell I get through my vents when the AC
is turned off from running. Felt the air and it was warm. Checked the temp and it had gone to "H". Shut off the AC
and temp went back to normal after 15 seconds.
I'm starting to think maybe the surpentine belt is worn. It shows no evidence of cracking or wear but it is the original and has 213,000 miles on it. It could be slipping even though I'm getting no squeeling. maybe it's slipping when the AC
compressor puts a heavier load on it. As far as the coolant pump is concerned, it's nothing but an impellar that turns and pumps coolant. It either works or doesn't. It either leaks or doesn't. It is noise free telling me the bearing is OK and no leaks. These pumps don't stop pumping, they leak usually through the bearing. Not a drop or rattle to be seen or heard.
Going to change the surpentine belt. If it was the coolant pump, I wouldn't be able to ride all over the place with the AC
on in 94 degree weather for 50 miles with no problem.