okay ive replaced my serpentine belt, alternator, belt tensioner and pulley and my idler pulley on my 98 GMC Z71 K1500 5.7L and the squealing is still happening i can figure out where its comeing from italmost sounds like its my water pump pulley.
Can You Say “Bingo!”?
It’s probably the pump!
Does This Truck Have A Clutched Cooling Fan?
I don’t know trucks.
However, it seem like a bad fan clutch could possibly scream at you.
I am just a "shade tree’ mechanic but I don’t think the fan clutch will scream at you’