P/S Pump noise HELP!!

[Bushhog]

I have a 2000 F350 CC/Dullie 4X4 and 2 days ago the P/S punp started making a "squeaking noise " like a dry bearing. First I thought it could be a idler pulley bearing but when I put the pump under load ie: turn the steering wheel or step on the brake the noise reduces or completely stops.
Any ideas what this problem may be? I have considered doing a system flush and or replacing the pump. If pump replacement is a must does anyone know of a stronger replacement ? Did I mention this pump has 120,000 mi on it?

 

[PowerStroker444]

Some poeple have went with aftermarket pumps that I think are made by AGR which I don't have a link for

 

[Bushhog]

Thanks for the info I'll see what I can find on the net.

 

[Mastertech]

THIS may be what you are looking for.

 

[NemoRat]

I would still check those idler pully bearings with the belt off. It could still be one of them.

 

[Geno]

Bush Hog
I had one acting like this once and I was told that 2 tablespoons of STP would free up the relief valve, dummy me I tried it an it worked. Later Did a flush on the system. this was a GM pump but is worth a try in case it is the relief valve.

 

[Bushhog]

Well I found my noise problem. I was doing some more trouble-shooting and realized the noise wasn't coming from the pump. I applied a belt dressing & the noise reduced alot. Looking at my pulleys closer I found the vacuum pump for my trailer brakes was not turning & the fan belt was just sliding over it. I quess the belt has stretched over time, replaced the belt & no more problems.

I did find out that AGR does make what they call a Super Pump for the Powerstroke.

Thanks for your ideas.