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Unread 03-25-2006, 01:27 PM   #1
nedsud
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WJ Power Steering Fluid Radiator Enhancement

Last Summer when on a trail ride and after ascending a rock slide, my power steering hose blewout. It over heated from the rock action. since it blew out again so I replaced the hose again. I looked at the stock fluid radiator and it is tiny and not in the flow of air.

I have been thinking about adding a larger radiator for the power steering.

Has anyone done this?

Ned
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Last edited by nedsud; 06-08-2006 at 09:18 PM..
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Unread 03-25-2006, 02:47 PM   #2
greasefingers
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Iím not sure that I follow you. Are you interested in a bigger radiator, if so then get a three row rad. But it almost sounds like you are interested in a power steering fluid heat exchanger?
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Unread 06-08-2006, 09:23 PM   #3
nedsud
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on my wj, there is this small radiator about 3 inches wide and 9 inches tall. it is connected to the power steering fluid line. it exists in front of the radiator, but off to the side. the way it is positioned, it looks like there is little air flow going through it. so i was going to replace it with a 10 x 10 or something like that. is this clear?
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Unread 06-09-2006, 06:30 AM   #4
greasefingers
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Is it stock for WJs to have a power steering cooler, or is this something that you added?
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Unread 06-09-2006, 07:34 AM   #5
nedsud
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I dont know. I did not add it. I am not the orginal owner.
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Unread 06-09-2006, 08:06 AM   #6
Double E
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I guess I need to look more closely but on mine, I assumed that was the tranny fluid cooler.


I had a similar thing happen to my PS hose while towing the heavy old boat. The hose popped off & sprayed the header putting out a huge cloud of thick white smoke. (Great show for traffic.)

The pressure had just caused the hose to pop off the fitting. Did your hose actually rupture?

Anyway, I had a bottle of fluid nearby and a screw-type SS hose clamp and was on my way.

If your hose ruptured, I'm going to get some braided stuff soon for mine.

Are you certain it's the PS system's fluid cooler you're looking at?
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Unread 06-09-2006, 08:14 AM   #7
greasefingers
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Yea power steering coolers are not that common (usually an add-on). He probably is looking at his external tranny cooler, which comes with the towing package.
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Unread 06-09-2006, 08:15 AM   #8
rm2001wj
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The tranny cooler for WJs are built into the engine coolant radiator. Power steering fluid radiator is a small separate unit.
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Unread 06-09-2006, 09:23 AM   #9
greasefingers
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Every automatic transmission has a tranny cooler built into the radiator. If one sees an external cooler mounted in front of the A/C condenser, then 99.86 % of the time it is a second externally mounted tranny cooler. These external mounted tranny coolers are almost always supplied with towing packages.

If in doubt, follow the lines.
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Unread 06-21-2006, 08:58 AM   #10
nedsud
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I have followed the lines and this small cooler is about 4 inches wide and 7 inches tall and connects to the power steering.
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Unread 06-21-2006, 10:51 AM   #11
micifus
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pics pics pics pics
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Unread 06-21-2006, 01:04 PM   #12
Handed
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It probably is a power steering cooler

Also for those of you in the know, the tow package comes with an external tranny cooler and not a power steering cooler, is that correct...although the power steering cooler definelty would help.
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Unread 06-21-2006, 01:09 PM   #13
zaq123
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I'm not sure about WJs but ZJ has no external power steering coolers. I've seen some folks add external tranny cooler to power steering system as a mod though
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Unread 06-21-2006, 01:11 PM   #14
Meerkat
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Don't know about WJ's (other than it stands for Woosie Jeep)
However, perhaps this bit of ZJ tech can be modified to work for you.
On the 5.2 liter ZJ, the transmission cooler is mounted on the passenger side in front of the radiator. On the 4.0 Liter ZJ, the transmission cooler is mounted on the driver's side in front of the radiator. The two units have different numbers because of the way they are plumbed. It is a fairly easy and common mod to get a 4.0 cooler and adapt it to the power steering unit, significantly decreasing PS fluid temperature.

HTH

BTW, just kidding about the woosie part...
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Unread 06-21-2006, 02:06 PM   #15
greasefingers
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I am still trying to figure out why a power steering pump cooler would ever be needed
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