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Unread 01-30-2014, 11:03 AM   #1
Muskitokid
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Steering pump wine

94 4.0; Temps here have been down in the single digits, when I start my ZJ (which starts right up every time!) the power steering whines pretty loud for a few minutes untill it starts to warm up, then it quits whining. It's quiet even when I drive as long as I let it warm up 1st. Fluid was only a tad low and I replinished it. Think it's about time for a new pump or could it be something else?

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Unread 01-30-2014, 03:47 PM   #2
Oldfrog
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Since it's about done anyway, try a little lucas pwr steering pump fluid in it. Get ready for a new pump. Yours sounds like it's nearly ready to replace.
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Unread 01-30-2014, 05:42 PM   #3
JasonStebbins
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Are you 100% sure it's the steering pump whining? A bad pump has a very distinctive sound but I have to ask.
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Unread 01-30-2014, 06:14 PM   #4
Gearhead31
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If you're positive it's the pump, be ready to replace it soon. You can try to salvage it but it's not too likely you'll get much more life out of it. If it starts whining all the time, I'd suggest having a AAA card or the like on hand till it gets dealt with.
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[QUOTE=JasonStebbins]We can call it the Whoosh King Catalog System. :D[/QUOTE]
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Unread 01-30-2014, 06:24 PM   #5
JasonStebbins
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Still driveable without power steering, just not as fun. I've been running an XJ pump for over two years now. The new one I got from Advance Auto had the wrong size pulley so I headed to the junkyard to find the lowest mileage ZJ/XJ. Found one that got T-boned with 113,000
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Unread 01-30-2014, 06:32 PM   #6
Gearhead31
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unless you grew up driving without power steering, it's anything BUT fun, that's for sure. I had to do that once, towing a 71 Ford LTD and a 73 Nova custom around town via tow chain with no functioning motors.. Driving with manual brakes and steering in collector cars with a tow chain leading you and really really big steel plate bumper and tow hitch infront of you is NOT fun in any way.. It was kinda neat when the carbon fiber hood flew off while going down the road though! uh.. *cough* thread jacked..
Yeah, you can drive but it may freak the crap out of you if it's a sudden failure. Seems like it's recommended to replace the whole unit instead of just the pump or just the reservoir as there can be parts match up issues just trying to replace one of them.
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1995 ZJ ltd, 4.0 i6, *cough stock cough* 253,xxx and still pumping strong
1998 Chevy Cheyenne K1500, 5.7L Vortec, mostly stock
*In peace, sons bury their fathers. In war, fathers bury their sons. - Herodotus
[QUOTE=JasonStebbins]We can call it the Whoosh King Catalog System. :D[/QUOTE]
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Unread 01-30-2014, 06:40 PM   #7
JasonStebbins
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I drove a Ford Escort with no power steering for almost a year, can't imagine a full size truck without it though!

Yeah I pulled the entire assembly from the XJ donor I ransacked. Direct fit.
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Unread 01-30-2014, 06:46 PM   #8
Gearhead31
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woops, I meant I was driving the cars with no steering while being towed by the truck.. An f250 with 1500lbs of accessories added to it w/o PS would be a nightmare... I'd probably wet myself on some of those roads
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1995 ZJ ltd, 4.0 i6, *cough stock cough* 253,xxx and still pumping strong
1998 Chevy Cheyenne K1500, 5.7L Vortec, mostly stock
*In peace, sons bury their fathers. In war, fathers bury their sons. - Herodotus
[QUOTE=JasonStebbins]We can call it the Whoosh King Catalog System. :D[/QUOTE]
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Unread 01-31-2014, 01:03 AM   #9
Uniblurb
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My power steering pump on my 96 4.0 also whines kind of loud when real cold out but smooths out pretty quick as the fluid heats up. But I just ignore it and if it goes out I'll replace it. It's not that old anyhow and just figure the whine goes along with other strange noises an engine makes when near/below zero.
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Unread 01-31-2014, 01:40 AM   #10
JasonStebbins
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Quote:
Originally Posted by Uniblurb View Post
My power steering pump on my 96 4.0 also whines kind of loud when real cold out but smooths out pretty quick as the fluid heats up. But I just ignore it and if it goes out I'll replace it. It's not that old anyhow and just figure the whine goes along with other strange noises an engine makes when near/below zero.
Have to agree there. When it's 7 degrees or below my engine sounds like it's going to explode on cold starts, then 10 seconds later it's like nothing happened.
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Unread 01-31-2014, 10:09 AM   #11
Muskitokid
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Ok thanks guys. I'll save back some pennys just in case. I am pretty sure that's what it is from playin with the wheel while it's whining. I'll try the Lucas and see if that helps, otherwise, one more part on the list of replacements!
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Unread 01-31-2014, 10:10 AM   #12
Muskitokid
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My first truck when I turned 16 didn't have power steering and I drove it for about 6 years. So I can handle it if it goes out, but I'd rather not!
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Unread 01-31-2014, 11:30 AM   #13
Uniblurb
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Quote:
Originally Posted by JasonStebbins View Post
Have to agree there. When it's 7 degrees or below my engine sounds like it's going to explode on cold starts, then 10 seconds later it's like nothing happened.
You got that right Jason! Lol. While I don't drive my Jeeps every day I at least start and run them for a while in this real cold weather to keep the not so old batteries charged up. A few days ago we had a couple nights where it was -20 then -18 below. In starting up my 96 4.0 in addition to some strange noises on start-up the idle likes to go up/down. But so does my breathing in sucking in all that ice-cold air!


Quote:
Originally Posted by Muskitokid View Post
My first truck when I turned 16 didn't have power steering and I drove it for about 6 years. So I can handle it if it goes out, but I'd rather not!
Yeah, I'm olde world and have driven a lot of vehicles w/o power steering.

Preventative maintenance is a good thing in replacing parts which are about to go out. But on these 20 year old ZJ's you'd be replacing quite a few parts.

On your current PS pump I'd just make sure the fluid isn't leaking out of the front seal where it may get on the belt and the pulley/shaft doesn't have any wobble in it. Most leaks come from the o-ring failure between the pump itself and where it fits on the plastic reservoir nipple. This is a real strange size o-ring and there's threads on here trying to figure out what size it is.

If you end up buying a new pump sometime you may want to keep your current reservoir if not cracked because the aftermarket ones are a lot thinner/cheaper plastic. And hopefully the pump will come with an o-ring or you may be going to the dealer to get the right size. Good luck!
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96 4.0 ZJ Laredo, 2004 4.7L WJ Limited, 93 4.0 XJ (spare), 96 4.0 XJ (son's)

-Stalling ZJ? 12 things to check before replacing a sensor; the Dirty Dozen
-Crankshaft position sensor multimeter test. & video of testing.
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Unread 02-01-2014, 11:02 AM   #14
Muskitokid
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Quote:
Originally Posted by Uniblurb View Post
You got that right Jason! Lol. While I don't drive my Jeeps every day I at least start and run them for a while in this real cold weather to keep the not so old batteries charged up. A few days ago we had a couple nights where it was -20 then -18 below. In starting up my 96 4.0 in addition to some strange noises on start-up the idle likes to go up/down. But so does my breathing in sucking in all that ice-cold air!




Yeah, I'm olde world and have driven a lot of vehicles w/o power steering.

Preventative maintenance is a good thing in replacing parts which are about to go out. But on these 20 year old ZJ's you'd be replacing quite a few parts.

On your current PS pump I'd just make sure the fluid isn't leaking out of the front seal where it may get on the belt and the pulley/shaft doesn't have any wobble in it. Most leaks come from the o-ring failure between the pump itself and where it fits on the plastic reservoir nipple. This is a real strange size o-ring and there's threads on here trying to figure out what size it is.

If you end up buying a new pump sometime you may want to keep your current reservoir if not cracked because the aftermarket ones are a lot thinner/cheaper plastic. And hopefully the pump will come with an o-ring or you may be going to the dealer to get the right size. Good luck!
Good info! Thanks!
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Unread 02-01-2014, 02:20 PM   #15
Uniblurb
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Quote:
Originally Posted by Muskitokid View Post
Good info! Thanks!
No problem and YW. Here's the thread I mentioned on the o-ring size for the one between the pump and reservoir. Looks like Josh did a lot of good research and found the 14mm x 3mm size works.

http://www.jeepforum.com/forum/f13/p.../#post15738278
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96 4.0 ZJ Laredo, 2004 4.7L WJ Limited, 93 4.0 XJ (spare), 96 4.0 XJ (son's)

-Stalling ZJ? 12 things to check before replacing a sensor; the Dirty Dozen
-Crankshaft position sensor multimeter test. & video of testing.
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