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Old 10-08-2014, 09:40 AM
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DIY- Power Steering Flush

I asked the question a while back with no response. So I decided to dig in myself
Once I stared at it for a few minutes I figured out a very simple method!
You will need:
Turkey baster (or similar)\
Funnel
Manual fluid transfer pump
Pliers
Tapered Cork (rubber or natural) about 3/8" on the small end
Rags
Appropriate fluid (ATF+4 in my case) The Hemi used 2 quarts
Something to catch waste fluid

First thing first- draw the level in the reservoir down as much as possible. There is a screen about half way down so the best you can get is slightly below the return hose (top hose). You can use a turkey baster or even the transfer pump if you like. I used the MixMizer, as it is what I have.


Once you have as much out of the reservoir as you can get, use the pliers to squeeze the hose clamp on the top hose and move it back a few inches. Stuff some rags or shop towels under and around the reservoir and hoses to catch any drips. Twist and pull the top hose off of the reservoir. Be careful and don't go all willy nilly because there is fluid in there. Prop the hose up slightly to keep fluid from leaking out and quickly plug the hole in the reservoir with the cork. Only a few dribbles should come out.


Next, take the fluid transfer pump (the one I used pictured below) and insert the larger tube into the return hose.


Hard to see in this pic but the return hose is facing up and the transfer pump suction hose in inserted into it.


Put the discharge hose of the pump into the waste can and top up the reservoir. The set up should look something like this:


As you pump the old fluid out keep an eye on the reservoir level. Make sure it is always above the supply hose so no air is sucked in. Placing a funnel in the reservoir makes it easy to do.


Pump slowly and keep topping up the reservoir as needed until the fluid coming out of the pump discharge tube is clean. At this point draw down the level in the reservoir past the return hose port (where the cork is). You will need to do this to get the hose back on.
****NOTE: do not forget to keep enough new fluid available to top up the reservoir to the "Full" mark after you are done! In my case, I didn't so I used the MixMizer to draw the fluid out of the reservoir and saved it. Then added it back after I was done
When removing the pump from the return hose I found it helpful to depress the pump and slowly let it out as I removed it. This will minimize fluid spill. However, it can still be messy. Use plenty of rags to appropriately cover the area. Upon removing the pump you will want to quickly put it in something to drain. I used my oil change pan. Also keep the return hose up so it doesn't drain all over.
Remove the cork and install the return hose. Secure the hose clamp appropriately. Top up the reservoir to at least the "Min" mark and put the cap back on. After cleaning up any mess, take it for a spin. I let the engine oil temp get to 180*f+ just to try to get the power steering fluid warm and circulated. Work the steering back and forth a good bit in a parking lot if you can. The fluid will expand when hot so now is a good time to check it again. Top up as needed. I still did not go to the "Max" mark because the fluid was not as hot as it could be after driving a long time. I wanted to leave some room for expansion.
(I re checked the level after my commute when everything is good and hot. Fluid level is just below Max.)

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  #2  
Old 10-08-2014, 09:44 AM
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Re: DIY- Power Steering Flush

Oh, if you do have the Hemi and are using ATF+4 now is a good time to change your transfer case fluid! You already have the fluid pump out and it takes the same ATF+4!
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Old 10-09-2014, 12:33 AM
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Re: DIY- Power Steering Flush

You sure atf+4 is the same as p/n 05166226AA. I never bothered to ask if power steering fluid +4 is just a fancy bottle name for atf+4 but I don't know for 100% sure. Anyone?
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Old 10-09-2014, 08:57 AM
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Re: DIY- Power Steering Flush

Yep. I'm sure. Well, not sure that it is exactly the same thing but ATF+4 is an approved fluid.
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