Originally Posted by
onehundred80
I'm thinking you had oil from the power steering pump on the belt, why did you replace the hose though? Why would it jump off, slip yes but to come off.
You have to move the belt tensioner in toward the center of the car, a 17mm socket on a long extension should do it.
Might have set his Gumball down next to the pully/belt and forgot it too..