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Old 02-02-2011, 10:24 PM
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hydraulic power steering/fan

I just did a full flush of my transmission and would like to do the same with the power steering pump/fan assembly. Can anyone tell me which line to take off as the supply to the pump so I can flush it all out

It appears to have to return lines: One from the fan and one from the steering???

Link to Transmission flush thread.
http://www.jeepgarage.org/showthread...127#post347127
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Old 02-03-2011, 12:27 PM
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Re: hydraulic power steering/fan

I just use a turkey baster and suck the fluid out of the reservoir refill and start the engine turn the wheels back and forth a couple times and then suck it out and refill again a few times. I do it every 50k miles.

I know that probably leaves some dirty fluid in there, I just hate to remove a line and risk screwing something up. But if I had to guess, (and I may be wrong) just by looking at it I would remove the low pressure line at the back bottom of the pump that comes in from the cooler.

Be sure to use the correct MS5931 power steering fluid. Do not use ATF in these systems.
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Old 02-03-2011, 02:38 PM
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Re: hydraulic power steering/fan

I did change my power steering fluid a while ago and took out one of the lower lines, but don't remember exactly which one it was. After filling the reservoir again, just start the engine and let it run for a few seconds, stop and recheck the level. Do this as many times as necessary to keep the level fixed. Then start again and move the steering wheel to both sides to remove all air. Also remove the coolant temp sensor connector (in between the airco compressor and generator) to speed the hydraulic fan to max rpm.
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Old 02-03-2011, 04:40 PM
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Re: hydraulic power steering/fan

I'll give that a try removing the sensor wire and the return line.

It will probably be 10-14 days as my wife is taking it on a trip tomorrow.

Thanks
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