Changing power steering fluid

[Breeeen]

Originally Posted by zabatron

Jack up front of vehicle and support on stands on each side so that both front wheels are off the ground.Turn ignition on to unlock steering,but do not start engine.Remove return line(low pressure hose) from reservoir and place end of hose into a suitable container/empty plastic water bottle.Turn steering wheel lock to lock slowy and fill reservoir with new power steering fluid at same time as level drops.Do not allow fluid level to drop below min mark,and you wont get air in system and therefore there is no need to bleed system.Once clean new fluid starts coming out of return hose,reconnect return hose and top up reservoir to full mark.Replace fluid reservoir cap.Lower vehicle and start engine for a few minutes,and check for leaks.Job done.

Thats how I do it anyway.

Hi Guys. It is time to do a power steering fluid change. Reading the 2.7 Everything thread I'm going from the yellow/orange fluid MS-10838 fluid over to the Penrite Pas fluid as according to Jeep the MS-10838 fluid has been discontinued.

Question is, is this process enough to do a flush given the change in fluids? I'm assuming they can't be mixed.

Approximately how many litres to do the job?








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[Jonny Jeep]

Hi Breeeen, Can you get Slick 50 PSF over there? Somebody on a UK forum has just been asking about PSF, and Slick 50 is compatible with MS-10838.

https://slick50.info/power_steering_fluid/

[Breeeen]

Thanks Jonny. Fluid wise I think I'm covered. We have Penrite PAS fluid available which meets the MS 10838 spec.

I'm just wondering what the best flush method is if doing a swap from one fluid to another?

[Adrian D]

Small tidbit regarding fluid part numbers, copied from wjjeeps.com

Important note:
The factory fill power steering fluid for all 1999-2004 Grand Cherokees is a unique fluid, MS5931. ATF+4 (MS9602) should not be mixed or used as a “topping off” fluid on the Grand Cherokee WJ. All WJ models should be serviced using ONLY the special MS5931 fluid. ATF+4 is NOT an approved Power Steering Fluid and should never be used under any circumstances. Note that all fluids will darken in color with usage and fluid color is no longer an indication of fluid condition.

[Classic Boy]

I have used ATF in a 6 cyl WG for around 4 years and 100,000kms after a steering box change no issues. Also run a V8 WG with ATF in the power steering/fan circuit without problems for a couple of years, I’m convinced mopar wants their Fluid used to make more money.