| [GMCnet] Tid Bits. Why change your Power Steering Fluid [message #339136] |
Wed, 28 November 2018 20:24  |
BobDunahugh
Messages: 2465
Registered: October 2010
Location: Cedar Rapids, IA
Karma: 11
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Senior Member |
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Changing your power steering fluid needs to be done. To replenish additives. There are many additives that are in power steering fluids. Most owners never think of changing the PS system. Or even know about the PS filter that can be cleaned. I know that there's a thought that Automatic trans fluid ( ATF ) can be used in the PS system. In a pinch. Yes. But will need to be changed ASAP. ATF lacks one very important additive. An anti foaming agent. If you had only ATF in your PS system. You'll get the pretties pink foam come out of the PS pump to clean up. It's not hard to change the PS fluid. There's a standard hose clamp on the low pressure hose on the back of the PS pump. Loosen that clamp. then pull the hose off. This will drain the PS pump. Then remove the PS filter. This will allow more fluid to drain out. Then put the low pressure hose back on the PS pump. And secure the hose clamp. Refill the pump. And start the engine. Then turn the steering wheel full left, then right. Then run your windshield wipers. This process WILL NOT change all the PS fluid. I would suggest that after you run the system. Change the PS fluid again. Bob Dunahugh
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| Re: [GMCnet] Tid Bits. Why change your Power Steering Fluid [message #339142 is a reply to message #339141] |
Wed, 28 November 2018 22:02  |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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Bob,
Sometimes the message is more powerful than details.
I for one have been negletcting changing the fluid.
Thank you.
On Wed, Nov 28, 2018 at 7:31 PM Bob Dunahugh wrote:
> I didn't say something clear enough in the e-mail below. I said that ATF
> lacked anti foaming agent. I should have said lacked enough anti foaming
> agent. ATF does have anti foaming agents. Thanks Emery for pointing out how
> I said that. Bob Dunahugh
>
>
> ________________________________
> From: Bob Dunahugh
> Sent: Wednesday, November 28, 2018 8:24 PM
> To: gmclist@list.gmcnet.org
> Subject: Tid Bits. Why change your Power Steering Fluid
>
>
> Changing your power steering fluid needs to be done. To replenish
> additives. There are many additives that are in power steering fluids.
> Most owners never think of changing the PS system. Or even know about the
> PS filter that can be cleaned. I know that there's a thought that Automatic
> trans fluid ( ATF ) can be used in the PS system. In a pinch. Yes. But
> will need to be changed ASAP. ATF lacks one very important additive. An
> anti foaming agent. If you had only ATF in your PS system. You'll get the
> pretties pink foam come out of the PS pump to clean up. It's not hard to
> change the PS fluid. There's a standard hose clamp on the low pressure hose
> on the back of the PS pump. Loosen that clamp. then pull the hose off. This
> will drain the PS pump. Then remove the PS filter. This will allow more
> fluid to drain out. Then put the low pressure hose back on the PS pump. And
> secure the hose clamp. Refill the pump. And start the engine. Then turn
> the steering wheel full left, then right. Then run your windshield wipers.
> This process WILL NOT change all the PS fluid. I would suggest that after
> you run the system. Change the PS fluid again. Bob Dunahugh
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] Tid Bits. Why change your Power Steering Fluid [message #339152 is a reply to message #339137] |
Thu, 29 November 2018 09:21 |
mghamms
Messages: 466
Registered: March 2016
Location: Ware, Massachusetts
Karma: 2
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Senior Member |
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Larry wrote on Wed, 28 November 2018 20:39Another way of doing it is to change the PS fluid every 2nd or third engine oil change. Using a turkey baster, suck as much out as you can and refill with new fluid. Easy to do. Also, IIRC Amzoil trans fluid is PS compatible. One less fluid that you'd have to carry. JWIT
I also use the turkey baster method on the brake fluid every oil change.
1977 Kingsley 455 as stock as it gets except lots of Ragusa parts
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| Re: [GMCnet] Tid Bits. Why change your Power Steering Fluid [message #339153 is a reply to message #339136] |
Thu, 29 November 2018 09:31 |
lqqkatjon
Messages: 2324
Registered: October 2010
Location: St. Cloud, MN
Karma: 5
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Senior Member |
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I will have to remember this once I fix my stupid leak. As my ps system gets a new 1/2 quart every time I go to drive it. Been a problem for years. But this new pump leaks bad. Need it to warm up to try pump #3.
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
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| Re: [GMCnet] Tid Bits. Why change your Power Steering Fluid [message #339161 is a reply to message #339136] |
Thu, 29 November 2018 12:00 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Senior Member |
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Even if the average PS system temp is below the oil breakdown point, some molecules at high PSI circuit points in the system can exceed that temp under high demand. It eventually turns brown as enough oxidized molecules are in the solution. It should be basically clear like the fresh stuff. I replaced the 250K stuff in my Jeep XJ and noticed a "new car feel" was restored due to correct viscosity and additives. Of course the consensus on the Jeep page was I was nuts, but I don't value their opinions.
John Lebetski
Woodstock, IL
77 Eleganza II
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