Power Steering Fluid for 4.7L - JeepForum.com
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post #1 of 18 Old 06-26-2008, 03:27 PM Thread Starter
WJeff
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Power Steering Fluid for 4.7L

I'm a newb and was reading WJJeeps and came across this:

Power steering fluid MoparŪP/N 04883077 Hydraulic fluid / Power steering fluid (MS5931)
MS5931 IS THE ONLY FLUID THAT CAN BE USED FOR THE POWER STEERING SYSTEM. NO EXCEPTIONS!

So I'm thinking I need to drop by my local stealership to pick some up. When I tell the girl I need power steering fluid for a 4.7L, she grabs a bottle off the shelf behind her and plops down Mopar Power Steering Fluid +4 which is
P/N 5166226. So I tell her about the hydraulic fan and ask if she's sure. She wasn't sure but would look it up. I knew I was in trouble when she asked for the VIN number. Finally she gets some guy to come over and assure me this is the right stuff "We use it in all the Libertys"

I bought it but can anybody confirm if this is the right stuff ? I'm less than confident in their competence.


WJeff
01 GC Ltd 4.7L
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post #2 of 18 Old 06-26-2008, 03:41 PM
Windowsrookie
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Nope, that is wrong. Just go to a store, Valvoline makes Power Steering Fluid that meets Chrysler Spec. 5931.

2000 Grand Cherokee Laredo 4.7L V8 Quadra-Drive
1987 Wrangler 4.2L
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post #3 of 18 Old 06-26-2008, 04:12 PM
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Wow, had no idea that it uses a special PS fluid. Maybe thats why I have a leak.

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post #4 of 18 Old 06-26-2008, 05:27 PM
rm2001wj
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Check the label to see it it meets the MS5931 standard. If it's not mentioned, take it back for a refund.
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post #5 of 18 Old 06-26-2008, 05:52 PM
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Quote:
Originally Posted by rm2001wj View Post
Check the label to see it it meets the MS5931 standard. If it's not mentioned, take it back for a refund.
The fluid he purchased will not work. It's basically ATF+4.

2000 Grand Cherokee Laredo 4.7L V8 Quadra-Drive
1987 Wrangler 4.2L
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post #6 of 18 Old 06-26-2008, 06:53 PM
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Quote:
Originally Posted by Windowsrookie View Post
The fluid he purchased will not work. It's basically ATF+4.
You may be right, but the product he got, "Mopar Power Steering Fluid +4," could be a new product which supersedes the original PS fluid. That's why I suggested that he check the label for MS5931.
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post #7 of 18 Old 06-26-2008, 07:03 PM
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Quote:
Originally Posted by rm2001wj View Post
You may be right, but the product he got, "Mopar Power Steering Fluid +4," could be a new product which supersedes the original PS fluid. That's why I suggested that he check the label for MS5931.
But It's not, there's a TSB that specifically says not to use Mopar Power Steering +4.


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1987 Wrangler 4.2L
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post #8 of 18 Old 06-26-2008, 08:00 PM
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Quote:
Originally Posted by Windowsrookie View Post
But It's not, there's a TSB that specifically says not to use Mopar Power Steering +4.

The TSB refers to AFT+4, and if Mopar Power Steering +4 = AFT+4, you would be correct. If it is not clear that they are the same, then he needs to look for the MC5931 certification.

I got the point that you are certain that MPS+4 and AFT+4 are the same. Let some of us express a little doubt, and then find some way to be certain about the proper fluid.
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post #9 of 18 Old 06-26-2008, 10:31 PM
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hmmm on this note i think im changing my sisters PS fluid tommrow........................................... ...............................oops

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post #10 of 18 Old 06-26-2008, 10:34 PM
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I like Lucas power steering fluid along with their other fluids,

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post #11 of 18 Old 06-26-2008, 10:51 PM
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How come its so special you have to get a specific fluid? Why doesnt a convential fluid work? Sorry Im a Numpty too.
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post #12 of 18 Old 06-26-2008, 11:01 PM
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Quote:
Originally Posted by BFI View Post
How come its so special you have to get a specific fluid? Why doesnt a convential fluid work? Sorry Im a Numpty too.
WJ Grand Cherokees are the ones that use the conventional Power Steering fluid. Most of the newer vehicles use Transmission fluid.

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1987 Wrangler 4.2L
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post #13 of 18 Old 06-26-2008, 11:12 PM
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Quote:
Originally Posted by Windowsrookie View Post
Most of the newer vehicles use Transmission fluid.
thats odd (maybe its not), but still what makes a system so special to need a specific fluid? I can undestand by the way of oil viscosity and such across different parts and models, but specific to 1 product number? Maybe ive understood this wrong but it just seems a bit strange. Im sorry if my question is too retarded to bother answering.
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post #14 of 18 Old 06-27-2008, 07:43 AM
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Quote:
Originally Posted by BFI View Post
thats odd (maybe its not), but still what makes a system so special to need a specific fluid? I can undestand by the way of oil viscosity and such across different parts and models, but specific to 1 product number? Maybe ive understood this wrong but it just seems a bit strange. Im sorry if my question is too retarded to bother answering.

The 4.7L WJ uses a hydraulic fan that is also run off of the power steering pump. Regular power steering fluid is not the same stuff.

Original poster: if you have the part number for the fluid you want to purchase, go back & return the fluid you bought and politely ask for the fluid you wanted. I went through the same thing last time I changed out the power steering fluid.

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post #15 of 18 Old 06-27-2008, 11:01 AM
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Quote:
Originally Posted by JayJEEPguy View Post
The 4.7L WJ uses a hydraulic fan that is also run off of the power steering pump. Regular power steering fluid is not the same stuff.
Only 2002+ Uses a Hydraulic fan, my 2000 uses a mechanical fan.

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