STEERING FLUID.
Thread Starter
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FOREIGN GURU
Joined: Jul 2006
Posts: 7,655
Likes: 7
From: Celaya, Gto. MX
STEERING FLUID.
With the problems of this forum I couldnt put this question here till today. I put it in other forum with few answers, so here I am.
Recently I had to change the high pressure hose and had to fill the reservoir with new fluid, BUT I couldnt get the clasicc <ACRONYM title="Automatic Transmission Fluid">ATF</ACRONYM>
and has to buy a specific Steering fluid from GM, any issues with that?, should I change it with the transmission fluid? 
Pros and cons?
Thanks in advance
Recently I had to change the high pressure hose and had to fill the reservoir with new fluid, BUT I couldnt get the clasicc <ACRONYM title="Automatic Transmission Fluid">ATF</ACRONYM>
and has to buy a specific Steering fluid from GM, any issues with that?, should I change it with the transmission fluid? Pros and cons?
Thanks in advance
Post Fiend
Joined: Mar 2006
Posts: 7,841
Likes: 0
From: Vacaville, Ca
I know with the older ford and chevy vehicles I used to use ATF for the power steering fluid. I do not know if it can be used with these trucks though. I bought power steering fluid for mine when I changed the hose.
Hotshot
Joined: Jun 2007
Posts: 10,008
Likes: 7
From: Austin, TX
I too bought power steering fluid for mine rather than ATF when my high pressure hose blew out. how did yours blow??? did it blow the whole fitting apart at the power steering pump? thats what mine did and my dad said his blew apart the same exact way
Thread Starter
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FOREIGN GURU
Joined: Jul 2006
Posts: 7,655
Likes: 7
From: Celaya, Gto. MX
In reallity it doesnt blown, just had a leak in that fitting, and I modified it with different adapters and seal there.
I have been searching about PSF vs. ATF and most people says that its OK, nevertheless that they are different or have some differences (I couldnt find a comparative chart), both are hydraulic oils and had been used for years for the steering pump, bad thing is if you use a different oil like 15W 40 for instance and the worst problem is that the seals of the system is not prepared for that kind of oil and soon or later it will develop some leaks. And other conclusion is that NEVER use PSF in the transmission.
Post Fiend
Joined: Mar 2006
Posts: 7,841
Likes: 0
From: Vacaville, Ca
Mine also blew the fitting at the pump. I remember a huge mess right in the middle of the Home Depot parking lot.LOL
EDIT: the nice thing is this problem is so common that the local Auto Zone had the hose in stock.
EDIT: the nice thing is this problem is so common that the local Auto Zone had the hose in stock.
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FOREIGN GURU
Joined: Jul 2006
Posts: 7,655
Likes: 7
From: Celaya, Gto. MX
Thanks again. But I wanted to know if any of you who has PSF in his truck, had having any issues and for how long time?
Here there are not MERCON V yet, can you imagine that?
Here there are not MERCON V yet, can you imagine that?
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Hotshot
Joined: Dec 2005
Posts: 10,253
Likes: 7,683
From: Chino Valley, Arizona
it is all I run (transmission fluid) I don't think in 33 years of mechanicing I have ever bought power steering fluid.
the D/M atf is the Dextron / Mercron automatic transmission fluid.
the D/M atf is the Dextron / Mercron automatic transmission fluid.
Post Fiend
Joined: Mar 2006
Posts: 7,841
Likes: 0
From: Vacaville, Ca
I have not had any problems what so ever. No leaks, no squeaks and easy steering. I hope that helps you.
Thread Starter
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FOREIGN GURU
Joined: Jul 2006
Posts: 7,655
Likes: 7
From: Celaya, Gto. MX
Yeap for sure, thanks a lot. Since when are you using it?
Post Fiend
Joined: Mar 2006
Posts: 7,841
Likes: 0
From: Vacaville, Ca
I have always had the Power Steering Fluid in there I believe. I changed the hose in 2006. Before that, I never did anything to the Power Steering. I bought the truck in 2002 with 70,000 miles on it.
