Steering issue

[GMC1977]

So sometimes when im going to take a turn in my Jimmy, the power steering belt seems like its slipping. I got a new belt and it did the same thing. I tried belt dressing and it didnt help. Any suggestions before i yank out the old stuff and put in all new?? i dont want it to start slipping and hit a car lol.
It is full of fluid and there are any leaks in the lines (that i can tell)

 

[broncoman6524]

slipping?

Pump squeal or make a whining/grinding noise?

 

[GMC1977]

more like a squeal thats very loud.

 

[Stomis]

Did you make sure your not low on fluid? How about any drips or seeps.

 

[GMC1977]

full of fluid. my buddy said its prolly losing pressure somehow. But if that was the case it would do it all the time. Right?

 

[Jason4x4]

watch it and have someone else turn the wheel. If it's slipping, you'll see the pulley stop. and tighten the crap out of it, especially if you're only running 1 belt, i.e., no a/c.

I once had to loosen the fan clutch bolts, then tighten the p/s belt, then retighten the fan clutch belt to get it tight enough.