The Idler pully is shot on my 2003 5.4L 4x4 Off road model. The question I have is, can I replace this pully without removing the serpentine belt? The belt does not go around this pully, it only rubs against it.
I am thinking I can have a helper relieve the belt tension, while I remove the old one and replace the new one. Does this sound like a plan? Will the belt fall off any of the pully's when I relieve the tension?
On another note, is there a special tool I need to replace the belt just in case I do need to remove it?
Take the tension off of the belt.
I use a breaker bar for that.
Slip the belt off of the pulley.
(This is when I would go ahead and change the belt too.)
Replace the idler pulley.
Reroute the belt into place.
It's simple. You just have to remove a little tension off the S- belt and the idler pulley can be swapped out. There is no need to remove the S-belt unless your removing the tensioner and replacing that, then you will have to remove the S-belt. Getting that serpentine belt on an off with just two hands is a little tough though.
Take a 1/2 drive bar loosen and remove the belt and replace the stock bearing with a $ 2.00 6203-2RS bearing (think that's the number) and reuse your Idler wheel. Pop out one of the rubber seals and pack it with a good synthetic grease replace and way to go, 20 min done.