The van needs to be running. I have a dumb-phone instead of a smart-phone so cannot record the sound. The location of the sound has been impossible to locate, even with a stethoscope, but it is coming from the area of the belt, pulleys, etc. It is not the belt or pulley's, however, as the chirping never changes speed. So, the noise is not affected by engine RPM. (And, the belt, pulleys, belt tensioner have all been changed)
Thursday, March 19th, 2020 AT 11:25 AM