Power Steering Pump? - JeepForum.com
 
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post #1 of 8 Old 10-08-2020, 05:55 PM Thread Starter
Scott Grey
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Power Steering Pump?

Greetings!

My '95 4.0 YJ 5spd has been acting up lately.

Symptom: After driving for a bit, whine and roughness at low to medium speeds. Whine increases when turns are made especially at lower speeds, also increases when slowing down via gears not brakes around 2nd to 1st. Can feel roughness in the steering wheel during whines and turns, but also feels a little rough on the stick (bit hard to describe, not that it is any harder to shift itself but just almost a vibration-type roughness while the whine is happening).

First inclination is something to do with power steering. But why does it wait until after driving for a while? Why do you also feel the vibe in the stick?

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post #2 of 8 Old 10-08-2020, 07:09 PM
Flyer58
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I have to ask.. Are you in 2WD when this happens? Have you checked the power steering fluid level?
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post #3 of 8 Old 10-11-2020, 02:22 PM Thread Starter
Scott Grey
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Originally Posted by Flyer58 View Post
I have to ask.. Are you in 2WD when this happens? Have you checked the power steering fluid level?
I checked it cold, fluid level was way overfull. Drained out much of the fluid and went for a ride. Still the same whine after heating up, both in 2WD and 4WD.
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post #4 of 8 Old 10-12-2020, 05:39 AM
fishadventure
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Take the belt off. Don’t go for a long drive, just short test (so you don’t overheat) and see if it remains. That will eliminate the transmission as a possibility if it goes away.

[size=ď3Ē]Shackles & D-rings are different things.
Cranking IS turning over
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post #5 of 8 Old 10-12-2020, 08:29 AM Thread Starter
Scott Grey
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Originally Posted by fishadventure View Post
Take the belt off. Donít go for a long drive, just short test (so you donít overheat) and see if it remains. That will eliminate the transmission as a possibility if it goes away.
It takes about 10-15 minutes driving before the whine starts, will this not be too long beltless?
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post #6 of 8 Old 10-12-2020, 08:34 AM
EABiker
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Quote:
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It takes about 10-15 minutes driving before the whine starts, will this not be too long beltless?
Take it off after it begins to whine.
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post #7 of 8 Old 10-12-2020, 10:38 AM
bruinjeeper
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Quote:
Originally Posted by Scott Grey View Post
Quote:
Originally Posted by fishadventure View Post
Take the belt off. Don’t go for a long drive, just short test (so you don’t overheat) and see if it remains. That will eliminate the transmission as a possibility if it goes away.
It takes about 10-15 minutes driving before the whine starts, will this not be too long beltless?
My guess is in a few days, to a week... you're gonna wake up to a bunch of PS fluid under your jeep.

When my PS went out last summer, same thing. Was fine until I was 10 minutes into a trip.... then you could really hear it... I'd stop and the PS reservoir was boiling over (bubbling). No leaks.

Few days later, she gave way over night and I needed to buy kitty litter to soak that puddle up. In my case... the bearing and race had enough... hence the pump wasnt pumping anything. Not efficiently anyhow... that in turn blew the seal at the pulley.

Either way, I'm going with your PS pump.
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post #8 of 8 Old 10-16-2020, 06:24 AM
fishadventure
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Quote:
Originally Posted by EABiker View Post
Quote:
Originally Posted by Scott Grey View Post
It takes about 10-15 minutes driving before the whine starts, will this not be too long beltless?
Take it off after it begins to whine.
Right. 30 seconds is probably too long without the belt....

[size=ď3Ē]Shackles & D-rings are different things.
Cranking IS turning over
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