• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-

New P/s Pump Sounds Awful

  • Thread starter Thread starter Sj92stanger
  • Start date Start date Jun 11, 2016

Sj92stanger

Member
Mar 12, 2016
11
3
13
Jun 11, 2016
#1
  • Jun 11, 2016
  • #1
Good morning all, here's my problem. Installed new rack and new p/s pump last weekend. The pump whines horrible worse than old one. I replaced the return line as well, I have no visible leaks so I don't think I have an air leak. Ive driven it about 200 miles already and not any better. I had it jacked up when I bled it, turning wheel side to side. Could I just still have air in it? It's a remand rack and pump from advance. I know, but it's not my daily so couldn't spend the money for new parts. The only fact thing I can thing is there was still some old fluid in the pressure line? The old rack was leaking and I was using Lucas stop leak so maybe that's too thick for new pump? Also I used type F fluid for the new parts
 

Davedacarpainter

Chicks can make things hard if they’re inspired...
SN Certified Technician
Nov 28, 2015
11,833
11,633
203
Discordia
Jun 11, 2016
#2
  • Jun 11, 2016
  • #2
I don't know, but maybe @jrichker might.
 

jrichker

StangNet's favorite TOOL
In Remembrance. Thank you for your contributions
Mar 10, 2000
27,512
2,813
234
Dublin GA
Jun 11, 2016
#3
  • Jun 11, 2016
  • #3
Flush the power steering system...


Buy several extra quarts of fluid to run through the system to flush it when you change the rack. The car needs to be up on jackstands for the next step. Fill the pump up, start the car, and turn the wheels lock to lock to bleed the air out. Then stop the engine, disconnect the low pressure hose (the one that is secured with a hose clamp) and drain the pump. Re-connect, refill and do it several more times or until the fluid looks clear and not burnt or black.

If that doesn't fix it, you can either lean to live with the noise or replace the pump. It is not uncommon to get a replacement pump that is noisy.
 
Reactions: mikestang63 and Davedacarpainter

Gearbanger 101

Straight Outta Locash
20+ Year Stangneter
Aug 10, 2002
9,457
1,377
234
Ontario, Canada
Jun 11, 2016
#4
  • Jun 11, 2016
  • #4
The ford replacement power steering pumps for our cars are junk. You'd have been better off running a used one from an early to mid 90's full size van. Almost a direct bolt in and twice the pump we were saddled with.
 
Reactions: Davedacarpainter
S

stpete

Well-Known Member
Dec 26, 2015
320
151
63
Jun 11, 2016
#5
  • Jun 11, 2016
  • #5
I got a rebuilt pump for my excursion and it sounds horrible. I think for some parts the quality of the rebuild is dependent on the problem with the core. Certain pieces never get replaced. They probably just reseal whatever junk pump they get. That said, whining may indicate an incomplete bleed. If you run it long enough that way it'll go bad fast. Mine is more of a loud hiss ... abnormally loud.
 

Killa

Active Member
Jul 9, 2007
1,006
56
49
Jun 11, 2016
#6
  • Jun 11, 2016
  • #6
mine make noise too, i just learn to live with it. Every ford pre 95 have louse PS anyway.

correct me if im wrong, but I read some where, that add a bottle ford LSD ( the stuff that add to rear diff ) to quiet the noise.
 

mikestang63

SN Certified Technician
Aug 27, 2012
11,606
8,859
214
In the garage
Jun 11, 2016
#7
  • Jun 11, 2016
  • #7
very common fore replacement PS pumps to whine. As Brian said, sometimes better to find a used one.
 

Boosted92LX

It's only an inch or two. What's the big deal?
15 Year Member
Dec 19, 2010
5,721
4,244
224
Jun 11, 2016
#8
  • Jun 11, 2016
  • #8
I replaced my rack and pump and it whines like crazy. Put it on stands and bled it forever. Still. Whining.
 

jrichker

StangNet's favorite TOOL
In Remembrance. Thank you for your contributions
Mar 10, 2000
27,512
2,813
234
Dublin GA
Jun 12, 2016
#9
  • Jun 12, 2016
  • #9
I have heard that the 94-95 pumps don't have this problem and are a direct swap. Can anyone confirm this?
 

hoopty5.0

mechanicus terribilis
15 Year Member
Dec 14, 2010
7,781
6,935
214
SW Houston
Jun 12, 2016
#10
  • Jun 12, 2016
  • #10
I went through 3 pumps back to back earlier this year to get one that didn't whine and I'll be damned if the one that finally quit whining already leaks.

The best cure is to go to a manual rack and don't be a little girl about the steering effort in a parking lot.
 
Reactions: Davedacarpainter
You must log in or register to reply here.

Similar threads

K
86 GT Water Pump
  • Kade5114
  • May 11, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
3
Views
95
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- May 11, 2026
nickyb
B
water pump installation questions
  • B0udreaux
  • Feb 5, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2
Replies
38
Views
2K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Feb 28, 2026
General karthief
Fox Xtremely high fuel consumption
  • PonyGTrider
  • Apr 11, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 9 10 11
Replies
213
Views
4K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- May 9, 2026
PonyGTrider
B
Take a look at my rack!
  • bicknell
  • Sep 1, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
9
Views
665
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Sep 13, 2025
Willybill32
H
Ongoing Battle With Hydraulic Lifters
  • hailer06
  • Jun 8, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
7
Views
281
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jun 9, 2026
Noobz347
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?