Unhook your belts one at a time and run the engine. When the squeal stops you found the bad belt or idler pulley. Check the pulley and either repack the bearing or replace it and TIGHTEN the belt tightly. I had the exact problem and turned out I wasnt getting the belt tight enough.


'04 Taco x-cab 3RZ FE stock (daily driver)
'90 x-cab 22RE stock
'82 Hilux 6" lift (ACES HI)
'82 2-Hiluxs' Rally Edition (parts)
'81 Hilux 3" lift (parts/restore)