[brrempel]

My power steering pump pulley makes a squealing noise when I start my Jeep and it stops once the engine is up to operating temp. I looked in my factory service manual to see if there is some way to lube it, but found nothing. Is there something I'm missing? If I can't lube it, will I need to rebuild or repair the pump in order to stop this noise?

[TheBoogieman]

Are you sure it's the pulley?Mine did that and it was the belt.

[brrempel]

Well, it's possible it's the belt, but the belt is only a few years old and shows no signs of needing replacement, except maybe this squealing sound.......

The belt is by far the easiest and cheapest component to replace so I guess I'll start with that. Something to do this weekend I guess.

[OldFatGuy]

Are you even sure it's coming from the power steering? The alternator would be a more likely source. Is your belt tension adjustable or does it use a spring tensioner?

[brrempel]

It's for sure not coming from the alternator. It's adjustable, but I've played with it and can't get it to stop, or even change in volume or intensity for that matter. However, once the engine is at normal operating temp it stops making the noise.

[halfmoonclip]

Originally Posted by brrempel

My power steering pump pulley makes a squealing noise when I start my Jeep and it stops once the engine is up to operating temp. I looked in my factory service manual to see if there is some way to lube it, but found nothing. Is there something I'm missing? If I can't lube it, will I need to rebuild or repair the pump in order to stop this noise?

Our 99XJ had this issue; da' kid comes in complaining that her pulleys were squealing when the air was first on.
Actually changed out the power steering pump for the same problem, and it didn't solve it.
I tightened the idler pulley with the bolt on the power steering bracket; seems to help, but get it too tight and it will take out the water pump bearing.
Moon