Engine Squeaking

[Kellson]

Hey everyone, I have a very squeaky XJ. All the squeaks are coming from the belt and pulleys. What exactly should I be replacing? I only wanna do this once. On my list is:
-Idler pulley
-harmonic balancer
-steering pump pulley
-water pump
-and a new belt
Anything I'm missing? I really want no squeaks!
Thanks

[slvmart]

Have you tried just tensioning the belt ?

[Brasscatz]

Yep, first step is to make sure the belt is tight. Might be time for just a new belt

Sent from my Samsung Galaxy S4 because my microwave couldn't do it

[4.3LXJ]

Yes, tighten the belt. The tensioner is under the power steering pump. You will have to loosen the pump first

[Kellson]

Great, I'll start there. I already ordered an idler pulley, and I'm getting a high-flow water pump too so those will be taken care of. I was really dreading doing the harmonic balancer though, should I replace it now? What are the signs of a bad one? Engine is 4.0 with 170k

[4.3LXJ]

The rubber deteriorates and the pulley starts walking out off the center.