noisy auto steering pump when cold

[NDIHC]

I can't be certain without doing some checking but I believe that Volvo likely uses a Pentosin fluid that specifically says not to mix with ATF for the PS. Might want to check that out. It works in my F350 isn't a good reason to use it in your Volvo.

 

[NDIHC]

There is a company called IPD that sells a repair kit for your car. Comes with a reservoir, hose, clamps and the correct Pentosin CHF 202 fluid for your system. Must be a problem if there is a kit available for it. Just check to make certain that it's the correct part for your car.

 

[NDIHC]

The last thing you want to do is put in something that doesn't belong in the system and screw up a $2-3,000 rack and pinion steering gear or other components. You have a pump with a remote reservoir, so you don't have to take the reservoir off the pump and replace a filter. You don't have a hydro boost system so your steering has nothing to do with your brakes, other than through the electronic stability control system. And that is an electronic connection, not a fluid connection. I would not put any kind of conditioner or anything in that system. It does not use regular ps fluid or trans fluid. I can say that I haven't had a lot of success with aftermarket reman ps pumps on most import vehicles. You seem to have gotten a good one as it has lasted 2 years so far. The filter on your system is part of the reservoir. I'd try the repair kit with the correct Pentosin fluid from IPD for eighty some bucks or from whatever supplier you prefer and hopefully save your $$$$$rack and pinion. Just my $.02.

 

[NDIHC]

I looked again and the kit from IPD may not fit your car. Found similar items on Ebay that say they will fit. Anyway the point is make sure it's right for your vehicle before ordering.