Squealing drive belt. Tried Everything!
#11
first things first, take some brake CLEANER and clean up the whole belt, all the pulleys etc, anything the belt comes in contact with. I had a bad belt squeel for months and tried everything just like you did and it was only getting worse. then when i had a recall done on my truck the mech said all that grease and stuff was just making it worse and he cleaned it with brake cleaner and like 95% of the sound went away. it still squeeks a little but i think thats more because theres probably a pulley slightly out of alignment because ive taken apart the front of the motor and didnt really have the time to check for alignment.
#13