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Old 09-04-2014, 06:20 PM   #1
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Power Steering Hoses

Is there a video available, showing how to replace both Power Steering Hoses on a 1999 TJ 4.0L

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Old 09-04-2014, 06:26 PM   #2
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its pretty simple just get a wrench and disconnect them from the steering gear. and they are molded to fit so its self evident when you put them back in. one is sending and the other is a return line. use a drip pan it can be messy.

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Old 09-05-2014, 09:11 AM   #3
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Thanks, I am aware that there is a flow and return hose between the pump and steering gear box. I am concerned about access to the connections at the steering box... from what I can see, it looks as though you have to remove the radiator and fan shroud etc.
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Old 09-05-2014, 10:12 AM   #4
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I've only done it on a 2.5 so I'm not sure about the 4.0 but on mine the hoses were easily accessible. I just wanted to point out that the high pressure hoses are sealed with an o-ring so don't tighten them down too tight or it will damage the o-ring and leak. (been there)
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Old 09-05-2014, 10:27 AM   #5
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It is possible to do it without removing the rad, but it's seriously going to be a hell of a lot easier to move the rad first. Or just unbolt it some and sort of push it out of the way a bit.
Some have said they just loosened the steering box first instead of the rad.

A line wrench makes it easier too, instead of a box wrench.
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Old 09-05-2014, 10:28 AM   #6
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I just replaced the steering gearbox on a 99 TJ a few weeks ago. You only have to remove the little plastic cover that goes between the bumper and the grill, that covers the sway bar to access the hydraulic connections on the steering box. All you need is a 10mm wrench to remove the 4 screws that hold the cover on and an 18mm wrench to remove the hydraulic hoses from the gearbox. I didn't have to deal with the pump end of the hoses , so can't speak to that end.
I can tell you that it is way easier to reinstall the power steering hoses if you remove the three bolts holding the gearbox to the frame, so you can move it around a little to help line up the threads on the hoses. Once you get the threads of the hoses started by hand, remount the box before tightening them down. Of course it weighs a few pounds and is much easier to do with a friend helping you. If you remove the gearbox from the frame, re torque the mounting bolts to 70 lb ft.
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Old 09-05-2014, 05:48 PM   #7
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I'll get the hoses at AutoZone and then try winding myself up to do this. The tip about the plastic cover between the bumper and grill, sounds like the way to go!
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Old 09-05-2014, 06:09 PM   #8
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Oh hey, CUT the old hose off from the plastic nipple on the bottom of the reservoir. Then carefully slice the hose bit that's left from around the nipple like you're doing surgery.

Pulling the hose from the nipple, even carefully, can result in the nipple breaking, and you'll have to get a new reservoir.

Cheers
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Old 09-05-2014, 06:20 PM   #9
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FWIW I replaced mine on my '04 in about an hour....IIRC it wasn't that bad once I figured out the best way to access it.....seems I turned the wheels all the way to the left and slide in from the side......I did have newsprint and a drip pain as I expected it to be a LOT more messy than it was...GOOD LUCK!!
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Old 09-06-2014, 12:54 AM   #10
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Quote:
Originally Posted by jp2611 View Post
FWIW I replaced mine on my '04 in about an hour....IIRC it wasn't that bad once I figured out the best way to access it.....seems I turned the wheels all the way to the left and slide in from the side......I did have newsprint and a drip pain as I expected it to be a LOT more messy than it was...GOOD LUCK!!
The Bleeding procedure in my factory manual says to fill the reservoir, jack up the front axle so both tires are off the ground and turn the steering lock to lock at least 20 times, lower the Jeep to the ground, add fluid as required and turn the wheels lock to lock again until you notice that the fluid level is no longer dropping.

Also, when we were calling around to find a new steering gearbox, one of the auto parts places quoted me a new reservoir, complete with hoses for something like $70 before realizing that I was asking about the gearbox, not the pump. Just mentioning it because if you need new hoses, this may be the way to go.
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Old 09-07-2014, 11:50 AM   #11
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Thanks everybody, I'll tackle the job now with a bit more confidence.

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