I noticed that my high speed fan started to make an awefull racket, chirping, rattling sound sometimes, and sounded god awefull when i turned the truck off and it does its power off wind down. being poor lol, i decided to spray a ton of pb blaster on the base where the fans shaft goes into the motor when it was off, let it sit... started her up and did it again with the fan spinning. all noises went away, and i swear my temps dropped a few degrees too

 

Which is the high speed fan?

 

Buy a new AUX fan motor.
Not the time to be a PB hero.
Summer is here.