New power steering pump and pressure hose, now excessive pump noise
So I replaced the power steering pump and the high pressure hose on my fiance's Jeep. The old pump had a small crack in the resevoir and the pressure hose leaked on the pump side fitting as well.
Aside from not having the fan clutch side of the pressure hose completely tightened, everything went pretty smooth. Immediately upon start up there was a lot of pump noise, which quieted down a bit after the fluid circulated throughout the system. However there is definitely a good amount of noise coming from the pump, higher RPM's and turning to full lock only makes the sound worse.
I'm no stranger to working on cars, and to me it sounds a lot like a bad bearing in the pump, and it certainly is possible to have purchased a bad unit straight out of the box. I wanted to make sure I used the right fluid, so I originally purchased some from the local dealer.
My only concern is that in the past, other dealer's have given us the MOPAR Power Steering Fluid +4 to use, and it had worked just fine. This time however the dealer gave me MOPAR branded power steering fluid. Even on the back of the bottle is says for use in 2004 and older Jeep Grand Cherokee's, and 1998 and older Chrysler vehicles.
I would much rather flush the system then go through and order a new pump and swap it out. Which is the correct fluid to use? Any other thoughts on what this could be?
'00 WJ 4.7 Limited- Some stuff
'03 WJ 4.7 Laredo- Some more stuff
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It is what Jeeples has *PARTIALLY* stated.