: water pump tension pulley

02-19-08, 11:02 PM
I have a 97 sts,i notice the water pump tension pulley jumping so i changed the whole tension pulley assembly.It still jumping,new belt, cleaned all pulley grooves,no noise, everthing looks good.Changed water pump about 20,000 ago,no heating probelms. ANY INFORMATION WOULD HELP! DAVE!

02-19-08, 11:49 PM
With the belt shroud off, take a good look at the track of the 3-rib belt. Is it straight ? If so, is the belt tight ? If not, with a new tensioner, the routing is wrong. Over the cam pulley, over the tensioner pulley, down around the w/p pulley.

02-20-08, 11:32 PM
I found out why the wp pulley was jumping.They sold me s 3 rip belt with notches every inch or so.The old belt is smooth 3 rib belt ,problem solved! Thanks for the info DAVE!