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Bleeding PS system #4570162
11/10/17 06:45 PM
11/10/17 06:45 PM
Joined: Nov 2016
Posts: 1,278
WI
HoosierJeeper Offline OP
HoosierJeeper  Offline OP
Joined: Nov 2016
Posts: 1,278
WI
I've done a google search but I'm getting a variety of answers from people that I don't quite trust. Replaced the PS pump and cooler in my Liberty. Here's what I'm thinking of doing:
1. Fill reservoir to full line
2. Jack it up
3. Cycle the wheels near lock to lock 25 times
4. Check fluid level and refill if needed
5. Cycle wheels again 25 times
6. Start it and hope for the best?


15 Jeep KL Limited V6: Formula Shell 5W20
07 LR3 SE V8: Maxlife 5W30
05 Jeep KJ Limited: PHM 5W30
96 Jeep XJ Country: STP HM 5W30 (winter)
Re: Bleeding PS system [Re: HoosierJeeper] #4570167
11/10/17 06:47 PM
11/10/17 06:47 PM
Joined: Aug 2008
Posts: 18,298
Ontario, Canada
StevieC Online content
StevieC  Online Content
Joined: Aug 2008
Posts: 18,298
Ontario, Canada
Put fluid in, idle the car and keep adding until at a safe stable level, shut off, jack the car up so the front wheels are off the ground, start the car again and have someone turn the wheel all the way in both directions back and forth as you keep an eye on the fluid. A few times is enough then take it for a drive and keep an eye on the fluid for the next couple days. It's what I do with my vehicles when needed.

Last edited by StevieC; 11/10/17 06:49 PM.

'18 Highlander - AMSOIL SS 0w20 / ATF / Severe Gear
'06 Santa Fe - 535,000km AMSOIL SS 0w30 / ATF (R.I.P)
Re: Bleeding PS system [Re: HoosierJeeper] #4570171
11/10/17 06:49 PM
11/10/17 06:49 PM
Joined: Jun 2003
Posts: 33,071
ME
eljefino Offline
eljefino  Offline
Joined: Jun 2003
Posts: 33,071
ME
Why jack it up? Nothing like a little load on things to burp the bubbles out.

Re: Bleeding PS system [Re: eljefino] #4570173
11/10/17 06:50 PM
11/10/17 06:50 PM
Joined: Aug 2008
Posts: 18,298
Ontario, Canada
StevieC Online content
StevieC  Online Content
Joined: Aug 2008
Posts: 18,298
Ontario, Canada
Originally Posted By: eljefino
Why jack it up? Nothing like a little load on things to burp the bubbles out.


You want as little stress on the system as possible for the initial burping.


'18 Highlander - AMSOIL SS 0w20 / ATF / Severe Gear
'06 Santa Fe - 535,000km AMSOIL SS 0w30 / ATF (R.I.P)
Re: Bleeding PS system [Re: HoosierJeeper] #4570174
11/10/17 06:50 PM
11/10/17 06:50 PM
Joined: Apr 2010
Posts: 174
Michigan
jkasch Offline
jkasch  Offline
Joined: Apr 2010
Posts: 174
Michigan
When it quits making noise should be enough back and forth.

Re: Bleeding PS system [Re: StevieC] #4570175
11/10/17 06:52 PM
11/10/17 06:52 PM
Joined: Jun 2003
Posts: 33,071
ME
eljefino Offline
eljefino  Offline
Joined: Jun 2003
Posts: 33,071
ME
Originally Posted By: StevieC
Originally Posted By: eljefino
Why jack it up? Nothing like a little load on things to burp the bubbles out.


You want as little stress on the system as possible for the initial burping.


Stress how? You can drive a PS system when it's dry as a failsafe just by man-handling it. There'll be enough residual fluid to lubricate stuff.

Re: Bleeding PS system [Re: HoosierJeeper] #4570186
11/10/17 07:00 PM
11/10/17 07:00 PM
Joined: Aug 2008
Posts: 18,298
Ontario, Canada
StevieC Online content
StevieC  Online Content
Joined: Aug 2008
Posts: 18,298
Ontario, Canada
Do that with a dry pump and see what happens... It's different when a belt snaps and the pump stops and you need to "Man Handle" it. Yes I have done this too.


'18 Highlander - AMSOIL SS 0w20 / ATF / Severe Gear
'06 Santa Fe - 535,000km AMSOIL SS 0w30 / ATF (R.I.P)
Re: Bleeding PS system [Re: HoosierJeeper] #4570190
11/10/17 07:03 PM
11/10/17 07:03 PM
Joined: Nov 2011
Posts: 1,053
Lyndhurst NJ
Audios Offline
Audios  Offline
Joined: Nov 2011
Posts: 1,053
Lyndhurst NJ
Wheels off the ground makes it so much easier to bleed without the pump running, way easier on you. Usually within 3-5 locks manually gets most out, then Ill start it and go watch the level with some in hand to top it as it sucks it down. Quick road test, then recheck, and usually its pretty good.


2002 VW Golf TDI-Mobil 1 5/40 TDT
2007 Mercedes GL320 CDI Fuchs 5/40 GT Pro XTL
2005 BMW M3 BMW Twin Power 10/60
2003 BMW M5-Fuchs 5/40
1998 BMW M3/4/5 Fuchs 5/40
Re: Bleeding PS system [Re: HoosierJeeper] #4570284
11/10/17 08:53 PM
11/10/17 08:53 PM
Joined: Feb 2011
Posts: 904
MA
AandPDan Offline
AandPDan  Offline
Joined: Feb 2011
Posts: 904
MA
Originally Posted By: HoosierJeeper
I've done a google search but I'm getting a variety of answers from people that I don't quite trust. Replaced the PS pump and cooler in my Liberty. Here's what I'm thinking of doing:
1. Fill reservoir to full line
2. Jack it up
3. Cycle the wheels near lock to lock 25 times
4. Check fluid level and refill if needed
5. Cycle wheels again 25 times
6. Start it and hope for the best?


That's exactly how Mopar wants you to do it.

Re: Bleeding PS system [Re: StevieC] #4570296
11/10/17 09:08 PM
11/10/17 09:08 PM
Joined: Jun 2003
Posts: 33,071
ME
eljefino Offline
eljefino  Offline
Joined: Jun 2003
Posts: 33,071
ME
Originally Posted By: StevieC
Do that with a dry pump and see what happens... It's different when a belt snaps and the pump stops and you need to "Man Handle" it. Yes I have done this too.


It's not dry if you put fluid in... Not being a douche but look at all the cars with slow leaks that finally alert the driver by making moaning noises from the cavitation or whatever. Add fluid, drive on. drive

Re: Bleeding PS system [Re: HoosierJeeper] #4570301
11/10/17 09:22 PM
11/10/17 09:22 PM
Joined: Jun 2002
Posts: 6,348
MI
doitmyself Offline
doitmyself  Offline
Joined: Jun 2002
Posts: 6,348
MI
My 2014 Jeep factory service manual procedure is to apply vacuum at the power steering fluid reservoir for about 3 minutes. Repeat until the fluid level no longer drops. Refill to the proper mark. Then, start up the engine and do three lock-to-lock wheel turns. Here's an example: http://www.wkjeeps.com/TSB/tsb_wk_1900805.pdf

The method discussed by the rest of you seems to be the most prevalent on You Tube.

Re: Bleeding PS system [Re: HoosierJeeper] #4570321
11/10/17 10:02 PM
11/10/17 10:02 PM
Joined: Nov 2016
Posts: 1,278
WI
HoosierJeeper Offline OP
HoosierJeeper  Offline OP
Joined: Nov 2016
Posts: 1,278
WI
I did what I outlined in my first post and then ran it for a minute, it sucked it down, refilled, fired it back up and it sucked more down, topped it up and let it run till the fluid level didn't drop again. Going to keep checking it.


15 Jeep KL Limited V6: Formula Shell 5W20
07 LR3 SE V8: Maxlife 5W30
05 Jeep KJ Limited: PHM 5W30
96 Jeep XJ Country: STP HM 5W30 (winter)
Re: Bleeding PS system [Re: HoosierJeeper] #4570324
11/10/17 10:05 PM
11/10/17 10:05 PM
Joined: May 2005
Posts: 567
Arizona
JGmazda Offline
JGmazda  Offline
Joined: May 2005
Posts: 567
Arizona
I too was wondering how to do this. I've watched a few YouTube videos which show disconnecting the bottom reservoir hose and then cycling the steering back and forth until the old fluid stops.

Refill and replace.

Anything wrong with that?

Re: Bleeding PS system [Re: HoosierJeeper] #4570356
11/10/17 10:52 PM
11/10/17 10:52 PM
Joined: Nov 2016
Posts: 1,278
WI
HoosierJeeper Offline OP
HoosierJeeper  Offline OP
Joined: Nov 2016
Posts: 1,278
WI
For just a fluid exchange? I wouldn't disconnect anything. Just get a turkey baster and suck out the reservoir, fill with new, run it for a few days or a week and repeat till it's clean. I don't know how much most PS systems take, but I think my Jeep probably takes about a quart or a little more.


15 Jeep KL Limited V6: Formula Shell 5W20
07 LR3 SE V8: Maxlife 5W30
05 Jeep KJ Limited: PHM 5W30
96 Jeep XJ Country: STP HM 5W30 (winter)
Re: Bleeding PS system [Re: HoosierJeeper] #4570366
11/10/17 11:05 PM
11/10/17 11:05 PM
Joined: May 2005
Posts: 567
Arizona
JGmazda Offline
JGmazda  Offline
Joined: May 2005
Posts: 567
Arizona
Originally Posted By: HoosierJeeper
For just a fluid exchange? I wouldn't disconnect anything. Just get a turkey baster and suck out the reservoir, fill with new, run it for a few days or a week and repeat till it's clean. I don't know how much most PS systems take, but I think my Jeep probably takes about a quart or a little more.


This is what I usually do. However, I've viewed some conflicting procedures detailing "purging" etc. I like your idea of replacing the fluid every few days, however, does this method actually purge the older fluid?

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