Power Steering Pump pulley

Dave0304XC · Post by **Dave0304XC** » 19 Nov 2022, 08:35

Hello, 04 V70, 2.4, my power steering pump is groaning when I turn the wheel, figured I needed a new pump. Easy enough switch out. Ordered a TRW pump from a major online supplier out of Connecticut, got the pump with pulley, pulley is almost 1/2" larger in diameter. Tried mounting it up, but couldn't get the belt on (cause pulley is so big I figured). The online retailer said that's just how they come and that I (???) should switch out the pulley. Yeah that's their solution, I should switch out the pulley. I don't even have a puller. Has anyone purchased a PS pump with the correct (I measured 5 1/8") diameter? Where should I look? Thanks!! Dave

Post by **abscate** » 19 Nov 2022, 13:07

Dave..try seating the belt into the PS pulley and putting the last loop onto the idler instead

MDK · Post by **MDK** » 22 Nov 2022, 16:10

Hey Dave.. I had the same issue with my 2004 v70 R.. the power steering pump pulley was smaller on the R than another one I pulled from a 2.5 turbo. I just got the longer belt. Secondly, the whining can be coming from the reservoir.. if it's bubbling while idling.. replace reservoir MDK

Dave0304XC · Post by **Dave0304XC** » 26 Nov 2022, 14:32

MDK- well it only whines when I'm actually turning the wheel. I heard that's the sign of a bad pump. I will look inside the resivour while it's running see if im getting bubbles. D

Post by **jonesg** » 26 Nov 2022, 20:38

Dave0304XC wrote: ↑26 Nov 2022, 14:32 MDK- well it only whines when I'm actually turning the wheel. I heard that's the sign of a bad pump.

or low fluid level.

Post by **firstv70volvo** » 27 Nov 2022, 09:20

Dave0304XC wrote: ↑26 Nov 2022, 14:32 MDK- well it only whines when I'm actually turning the wheel. I heard that's the sign of a bad pump. I will look inside the resivour while it's running see if im getting bubbles. D

Here's what causes the fluid to aerate and cause pump noise, the return tube inside the PS reservoir cracks.

: PS reservoir cut in half.jpg (258.44 KiB) Viewed 1242 times

: PS reservoir crack along length of retrun line IV.jpg (255.56 KiB) Viewed 1242 times

If your PS reservoir is bad and based on my experience I'd recommend buying a Volvo genuine part or Vaico brand part (FCP EURO and RockAuto have them), the other aftermarket reservoirs I've purchased had a short lifespan.

Dave0304XC · Post by **Dave0304XC** » 27 Nov 2022, 16:40

Wow! That's amazing. Would NEVER have thought a failure like that could happen. But, my V will be 19 years old in 2023, and plastics do break down. D

Post by **br0dy519** » 27 Nov 2022, 17:21

Thats why any model below 2005 I recommend upgrading to the 2005+ reservoir style. Did it on both my p2’s. Easy swap out