Question about 2002 Jeep Grand Cherokee

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Will atf puty in steering pump and geer box make power steering box more noise than using power steering fluid in the jeep cherokee

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  • toneman2121
    toneman2121 May 11, 2010

    if the two fluids are not compatible, problems could arise. you should only use the fluid the manufacturer recommends



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It shouldn't. usually when your power steering pump starts making lots of noise it's about to die

Posted on May 01, 2010


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2002 jeep liberty power steerin seem to be going out . Started with a wird noise check power steerinfluid it was low added one bottle. It seem better but than it became hard to steer

oops do not just add fluid. and the fluid not stated, brand and type. ouch.
many jeeps run very SPECIAL fluid.
the pumps runs at higher RPM and Dexron will not work on my other jeeps. id not own liberty but, can advise.
never ever use the wrong fluid in any A./T or P/S or you will be sorry.
seems its bad system if it drops level, so is moot point now (bet)
my jeep , i had to put in a new pump and napa said,our pS fluid works
and the bottle said just that, and foamed up , fast and the new pump
failed in 1hour. never ever listen to clerks. ever. run spec. lube.

the operators guide pages on capacities page 2004 (i dont have 02 books)
shows this.
Mopar ATF+4 Automatic Transmission Fluid
+4 is downward compatible to 3, its a superior lube.
+3 ended in 2005.

do not use anything else. mixing brands/types asks for trouble.
read all these post , then act.
the additives, in all brands will be different and will not mix well.
do not mix that. (the dino, syn reasons, are all religion, on mix.)

the ATF+4 bottle must say on back , licensed through Chrysler.
many wana be's lie. (they can, and do)

this +4 fluid is a true synthetic and has vastly better spec;s
high heat, longer life, 100kmiles, and very low shear spec.
the PS pumps , some run real fast and i've seen many foam up.
using the wrong fluid. get the real thing.
and do not mix them ,drain and fill with rear ATF+4

good luck

Sep 28, 2014 | 2002 Jeep Liberty

1 Answer

Hydraulic fan does not go any faster than basic 500 rpm. Overheats after driven on highway and then in stop n go traffic. Have put 12v to the two pins (with colored wires) in the plug and the fan runs...

The hydraulic fan runs off of pressure from the power steering unit. I would recommend that you check the fluid level on your power steering pump. It is more common for the power steering pump to give issues than for the fan to go out. That being said, if you can notice any whining noise, lag, or lack of assist when turning the steering wheel, it is either the fluid level, or the power steering pump. The factory fill power steering fluid for all 1999-2004 Grand Cherokees is a unique fluid, MS5931. ATF+4 (MS9602) should not be mixed or used as a "topping off" fluid on the Grand Cherokee WJ. All WJ models should be serviced using ONLY the special MS5931 fluid. ATF+4 is NOT an approved Power Steering Fluid and should never be used under any circumstances. Note that all fluids will darken in color with usage and fluid color is no longer an indication of fluid condition.

I hope that you have found this information to be useful, and if I can be of any further assistance, please let me know. Thank you for using fixya!

Oct 01, 2013 | 2004 Jeep Grand Cherokee

1 Answer

What oil do i put in my power steering on s/reg grand cherokee

Use power steering fluid available in auto parts stores. If you can't find power steering fluid, use Automatic Transmission Fluid (ATF) -- they're essentially the same.

It would be best to follow what your user's manual specifies, but I assume you don't have that.


P.S. Some manufacturers even specify ATF for the power steering pump.

Feb 08, 2011 | Jeep Grand Cherokee Cars & Trucks

2 Answers

99 Jeep grand cherokee steering column makes a clunking

If its a whining noise, check the power steering fluid level and fill if low, otherwise you may have a pump going out or a loose belt

Jul 29, 2009 | Jeep Cherokee Cars & Trucks

2 Answers

What oil is used in a 1994 Jeep Grand Cherokee

Use Dexron® II or ATF Plus/Type 7176 automatic transmission fluid (or their superceding fluid type).

Jun 06, 2009 | 1994 Jeep Grand Cherokee

1 Answer

Power Steering Noise

use what the manual suggest to use. it should be standard power steering fluid. do not use ATF. ATF is automatic transission fluid.
you only use this if the manual says to usually only on a merzades.
the wining noise could be the pump breaking it's self in. it will do this for a while untilt he pump is completley broke in and is used to the being used.

Aug 24, 2008 | 2001 Hyundai Tiburon

1 Answer

I have a jeep grand cherokee and the power steering keeps going stiff is it the power steering pump or steering box

If it only goes stiff part of the time, the box is probably OK.

Before considering major surgery:
  • check the power steering fluid level.
  • condition of the fluid
  • condition and tension on the belts
  • check for low or uneven tire pressure
  • check steering linkages for damage (did someone borrow the car recently?)
If none of these check out, then consider replacing the pump.


Jul 13, 2008 | 1995 Jeep Grand Cherokee

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