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  #1  
Old 08-03-2015, 02:32 PM
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2002 jeep grand cherokee 4.7 power steering problem

I have a 2002 jeep grand cherokee 4.7 and when it heats up to 190f the power steering is hard to turn its fine when cold also i noticed at the bottom of the gear box there is a slight drip every once in a while nothing major I dont have the money to replace the pump and box right now if i use power steering fluid with stop leak in it so its thicker would this fix it for now?

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  #2  
Old 08-04-2015, 12:22 AM
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Re: 2002 jeep grand cherokee 4.7 power steering problem

I would not do this. The power steering fluid is also used for the hydraulic cooling fan unit and i wonīt expect good results from a stop leak in this system. You donīt want to replace this hydraulic cooling fan unit, since its very expensive.
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Old 08-04-2015, 02:42 AM
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Re: 2002 jeep grand cherokee 4.7 power steering problem

Also, if you put anything other than Mopar fluid or equivalent (I think Valvoline makes one) you will most likely ruin the pump.
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Old 08-04-2015, 07:51 AM
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Re: 2002 jeep grand cherokee 4.7 power steering problem

Flush it with fresh PS Fluid.
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Old 08-04-2015, 11:13 AM
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Re: 2002 jeep grand cherokee 4.7 power steering problem

Quote:
Originally Posted by p3vinny View Post
Also, if you put anything other than Mopar fluid or equivalent (I think Valvoline makes one) you will most likely ruin the pump.

Cant get mopar fluid around here any idea what ones exactly are equivalent to it?
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Old 08-04-2015, 12:53 PM
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Re: 2002 jeep grand cherokee 4.7 power steering problem

I'm using a local fabricated synthetic power steering fluid for years without any remarks.
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Old 08-04-2015, 01:37 PM
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Re: 2002 jeep grand cherokee 4.7 power steering problem

Quote:
Originally Posted by Frango100 View Post
I'm using a local fabricated synthetic power steering fluid for years without any remarks.
Will this work? they have a synthetic version of it by me.
Lucas Oil - Power Steering Fluid W/Conditioner | 4WheelParts.com
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Old 08-04-2015, 04:49 PM
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Re: 2002 jeep grand cherokee 4.7 power steering problem

Just flushed out the whole thing seams to be better so far gear box still drips a little but at least i can turn the wheel when it gets hot.
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Old 08-05-2015, 03:01 AM
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Re: 2002 jeep grand cherokee 4.7 power steering problem

The power sterring fluid is MS5931, if you search for it a few options pop up. I used Valvoline - Advanced Auto has it Part No. 602241.

Flushing it was a great idea. If the stuff you put in meets MS5931 specs you should be fine... if not pump may fail. Mine did, PO put wrong fluid in, pump started to leak, then ultimately needed replacement.

HTH,
Phil
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Old 08-05-2015, 08:03 AM
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Re: 2002 jeep grand cherokee 4.7 power steering problem

I flushed the power steering system in my 04 limited 2 years ago and used this stuff from Autozone. It meets the MS5931 standard and works fine.


AutoZone/Power steering fluid AZPSF32 at AutoZone.com
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