ok this stupid squeel is driving me nuts.ive checked all pulleys for a;ignment ,cus i had to pull the ps pump wen i demodded.ive changed all pulleys that were changeable ,ive changed alternator ,and i checked the waterpump and its fine.im out of ideas.i cleaned all pulleys with a wire brush.if i put a lubricant on it like tire shine wd40 ,or belt dressing it stops for like five miles then starts right back up again.i even tried the old bar of soap on it.and ive changed belts 3 times.nothing helps.what other tricks u guys have?
mods:2004 sierra ext sb,20s ,big brake kit w,hawk pads,air bagged,2006 6.0 lq4 swap,vortec supercharged10psi, air to water intercooled w/ dual electric fans on it ,snow meth injection kit,60lbers, e-fans ,big radiator swap ,cam 218 /222 548/550 comp .hardened prs .1.85 comp roller rockers ,guideplates ,crane double springs,trans 4l65e built .pacesetter l/ts true duals w/x pipe and magnaflows,14 bolt rearend swap ,3.73s,aroemotive fuel pump system w/elec.fuel controller and bypass regulator a/n fittings, taylor 10.5s interceptor gauge,aem w/b a/f ,autometer boost/vac NELSON 93 OCTANE TUNED .