Quote Originally Posted by RedHeartbeat View Post
take the belt off and check all the pulleys for one that is hard to turn, idlers especially. Also, what brand belts are you using? Is the tensioner belt wear indicator in the acceptable range?
check those then check the water pump pulley!!


did you replace the water pump pulley? take the belt off and see if you have any drag on the pump, specially if you replaced all other pulleys