• Welcome Visitor! Please take a few seconds and Register for our forum. Even if you don't want to post, you can still 'Like' and react to posts.

steering pump noise


dashhho

Active Member
Joined
Sep 12, 2020
Messages
103
Reaction score
28
Points
28
Location
Canada
Vehicle Year
2005
Make / Model
Mazda B4000 SE
Engine Type
4.0 V6
Transmission
Automatic
2WD / 4WD
4WD
My truck has always had a power steering whine since I got it. From reading around it seems most deem this normal. Recently I have noticed more of a shuttering of the pump when turning the wheel at a dead stop - it is definitely not a whine. It is accompanied by a stiff wheel. It doesnt do it if I'm crawling or moving. It has fluid and no noticeable leaks.

Does this sound like a pump on its way out? Is there any diagnostic procedures to find out more of what may be going on?
 


Rock Auto 5% Discount Code: 81874766E40C6A 5th, 2022

franklin2

Well-Known Member
Joined
Dec 24, 2019
Messages
1,540
Reaction score
549
Points
113
Location
Virginia
Vehicle Year
1984
Make / Model
Bronco II
Transmission
Manual
Do you have a serpentine belt or a v-belt? If you have a v-belt, I suspect the belt is slipping. If you have a serpentine, check it's condition and that the tensioner is keeping it tight.

P.S. You can also have balljoint problems which makes the steering hard to turn.
 

gw33gp

Well-Known Member
U.S. Military - Veteran
TRS Banner 2010-2011
Joined
Aug 7, 2007
Messages
1,450
Reaction score
228
Points
63
Location
Costa Mesa, CA
Vehicle Year
2002
Make / Model
Ford
Engine Type
4.0 V6
Engine Size
4.0 SOHC
Transmission
Manual
2WD / 4WD
4WD
Tire Size
33"
Power steering whine may happen a lot but it is not considered normal. My 2002 Ford Service manual even states if it is making noise, it should be purged to eliminate it because it can damage the pump. Purging is done by pulling vacuum (20-25 in-Hg) on the reservoir, at normal fluid level, with the engine at idle for 3 min. Then release the vacuum and refill if needed. Apply vacuum again and cycle the steering right and left, full lock, every 30 seconds for 5 minutes.
 

dashhho

Active Member
Joined
Sep 12, 2020
Messages
103
Reaction score
28
Points
28
Location
Canada
Vehicle Year
2005
Make / Model
Mazda B4000 SE
Engine Type
4.0 V6
Transmission
Automatic
2WD / 4WD
4WD
Power steering whine may happen a lot but it is not considered normal. My 2002 Ford Service manual even states if it is making noise, it should be purged to eliminate it because it can damage the pump. Purging is done by pulling vacuum (20-25 in-Hg) on the reservoir, at normal fluid level, with the engine at idle for 3 min. Then release the vacuum and refill if needed. Apply vacuum again and cycle the steering right and left, full lock, every 30 seconds for 5 minutes.
Can it be done without the vacuum pull. Turning the steering wheel with engine off and wheels off ground? I don't have one on hand, maybe an auto store nearby will rent one.
 

RonD

Well-Known Member
Joined
Jun 2, 2012
Messages
20,661
Reaction score
4,251
Points
113
Location
canada
Vehicle Year
1994
Make / Model
Ford
Transmission
Manual
Make sure power steering fluid is topped up
Go to a gravel or dirt road, or jack up the front wheels, saves wear and tear on the tires
Engine on
Turn steering wheel lock to lock a few times to see if it clears out any air in the system, stuttering gone
And have a look under the front to see if any fluid is dripping out, if so then it can also SUCK AIR IN

Stuttering can also be the fan belt slipping, generally this will make a "squeal" noise but not always, and power steering pump is the hardest pulley to turn so most likely to slip/stutter
 

sebastian323

Member
Joined
Aug 2, 2021
Messages
57
Reaction score
5
Points
8
Location
Merced, CA, USA
Vehicle Year
1996
Make / Model
Ranger XLT
Engine Type
4.0 V6
Transmission
Manual
2WD / 4WD
4WD
My truck has a constant whine from the power steering pump, but the steering wheel is in no way hard to turn. Would replacing the pump be the only fix? Is there some sort of o-ring or seal which I can use to remedy this problem?
 

sgtsandman

Aircraft Fuel Tank Diver
Forum Moderator
Supporting Member
U.S. Military - Active
TRS 20th Anniversary
TRS Event Participant
Joined
Mar 11, 2017
Messages
7,433
Reaction score
4,792
Points
113
Location
Aliquippa, PA
Vehicle Year
2011
Make / Model
Ford Ranger XLT
Engine Type
4.0 V6
Engine Size
4.0 SOHC
Transmission
Manual
2WD / 4WD
4WD
Total Lift
Pre-2008 lift
Tire Size
31X10.5R15
I had to replace mine with a factory remanufactured to make it stop. I tried an aftermarket remanufactured pump first and it was louder than the original pump was!
 

rumblecloud

Well-Known Member
Supporting Member
Joined
Mar 6, 2020
Messages
687
Reaction score
358
Points
63
Location
48022
Vehicle Year
1994
Make / Model
Ranger Splash
Engine Type
4.0 V6
Transmission
Automatic
2WD / 4WD
4WD
Total Lift
1-1/2 inch front leveling
Total Drop
Stock
Tire Size
P235/75R15
My credo
What's the worst that could happen?
Just did mine with an Auto Zone reman (Duralast). Haven't driven more than 10 miles so we'll see how that works out.
So far so good.

Wasn't as difficult as I had imagined.
 


Top