97 blazer LT 4.3 v6 replaced belt tensioner altnator, belt and idler pulley still horrible squeeling more so with giving gas I am using a gator back belt from good year. spent all week trying to get this fixed just gets worse????? I can put just a couple of drops of water on it and it is 100 percent fixed until it drys???

could it be the allignment of the pulleys being off ????

Check the waterpump bearings, they could also cause such a noise.