so i havent texhnically found the issue yet

im thinking my alternator decoupler is goin bad or a bearing inside is goin out, luckily my dad has like 3 cummins engines at home and i can take parts as i please lol

i even put in a water pump and it still squeals


ill try another alternator

 

any updates

 

so i put in a another alternator, and no luck

this thing is driving me insane


i tried belt dressing yesterday and noticed that when i dressed the belt both outside and in(grooves) it quit squealing but then it dried up and squealed again, then i also noticed that when i spray it the belt slides back on the fan pulley and quits squealing, but then when it dries up the belt slides forward some and again comes the squeal


i heard it could be misalignment, so i figured maybe my power steering pump can be the one misaligned cause it was the last thing i changed before it squealed again, and i noticed that my steering pump had a small oil leak real slow drip so im thinking maybe my belt is gettin oiled somehow or misalignment


man i have never had this many problems with a truck, never have i been stumped this way, being a mechanic for many years.

 

"dressed belt & quit squeeling" ...IMMHO something is misaligned

 

thats what im more leaning towards is misalignment

gonna look closer



but i DO NOT understand how it could have gotten misaligned???

 

Do you notice a more prominent squeal on humid days or during a rain, or is it always constant?

 

more during rainy days but i fixed it

was the belt tensioner