Notices
1994.5 - 1997 7.3L Power Stroke Diesel  

Powersteering flush

Thread Tools
 
Search this Thread
 
Old Feb 5, 2008 | 06:31 AM
  #1  
NWO_diesel_nut's Avatar
NWO_diesel_nut
Thread Starter
|
Senior User
Joined: Jul 2007
Posts: 158
Likes: 0
From: Stratton, Ontario
Powersteering flush

Wanting to completely flush the powersteering pump. I understand that you open the cap and add fluid while the truck is running and turning the wheels. What I am confused about, is which line do you detach and collect old fluid from which port.

Here is the diagram of the system; maybe someone can explain. Also, which hose is it that commonly breaks?

 
Reply
Old Feb 5, 2008 | 07:36 AM
  #2  
tjbeggs's Avatar
tjbeggs
Post Fiend
Joined: Apr 2004
Posts: 12,835
Likes: 3
From: Silver Lake Dunes, MI
Club FTE Silver Member

The pic you have isn't the same as what your truck has. Thats a truck equipped with hydroboost brake booster. but anyway the line you want is the all rubber line that goes in a nipple on the pump. It just has a hose clamp on it. that is the return line. you will need to plug the nipple or the reservior will just drain out there.
 
Reply
Old Feb 5, 2008 | 02:03 PM
  #3  
NWO_diesel_nut's Avatar
NWO_diesel_nut
Thread Starter
|
Senior User
Joined: Jul 2007
Posts: 158
Likes: 0
From: Stratton, Ontario
Originally Posted by tjbeggs
The pic you have isn't the same as what your truck has. Thats a truck equipped with hydroboost brake booster. but anyway the line you want is the all rubber line that goes in a nipple on the pump. It just has a hose clamp on it. that is the return line. you will need to plug the nipple or the reservior will just drain out there.
How is that possible when it shows the 7.3L having a hydroboost brake booster in the service manual?
 
Reply
Old Feb 5, 2008 | 02:45 PM
  #4  
tjbeggs's Avatar
tjbeggs
Post Fiend
Joined: Apr 2004
Posts: 12,835
Likes: 3
From: Silver Lake Dunes, MI
Club FTE Silver Member

The F-superduty (f-450) is the only OBS truck to have a hydroboost brake booster. Service info is often wrong.
 
Reply
Old Feb 5, 2008 | 03:15 PM
  #5  
WALJON's Avatar
WALJON
Posting Guru
Joined: Nov 2003
Posts: 2,214
Likes: 0
From: THUNDER BAY
Club FTE Silver Member

What is a hydro boost brake booster? It looks like full hydraulic brakes I don't see a booster?
 
Reply
Old Feb 5, 2008 | 03:32 PM
  #6  
84-250's Avatar
84-250
Posting Guru
Joined: Jan 2003
Posts: 1,412
Likes: 0
From: Munroe falls, Ohio
Hydro boost uses pressure from the power steering pump while a regular brake booster uses vacuum. Both do the same job, the hydro is stronger and is often an upgrade for the OBS trucks. But stock an OBS comes with a vacuum brake booster. #5 is the hydro booster in the diagram
 
Reply
Old Feb 5, 2008 | 03:37 PM
  #7  
WALJON's Avatar
WALJON
Posting Guru
Joined: Nov 2003
Posts: 2,214
Likes: 0
From: THUNDER BAY
Club FTE Silver Member

Thanks I have never seen that .
 
Reply
Old Feb 5, 2008 | 05:13 PM
  #8  
NWO_diesel_nut's Avatar
NWO_diesel_nut
Thread Starter
|
Senior User
Joined: Jul 2007
Posts: 158
Likes: 0
From: Stratton, Ontario
Originally Posted by tjbeggs
the line you want is the all rubber line that goes in a nipple on the pump. It just has a hose clamp on it. that is the return line. you will need to plug the nipple or the reservior will just drain out there.
So is that the line that needs to be replaced? or the one you drain from? That's the one on the bottom of the pump correct? What to plug the reservoir with?
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Top 10 Ford Truck Tragedies

 Joe Kucinski
story-1

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

 Brett Foote
story-2

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

 Michael S. Palmer
story-3

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-4

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-5

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

 Brett Foote
story-6

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

 Michael S. Palmer
story-7

10 Most Surprising 2026 Ford Truck Features!

 Joe Kucinski
story-8

Top 10 Ford Trucks Coming to Mecum Indy 2026

 Brett Foote
story-9

5 Best / 5 Worst Ford Truck Wheels of All Time

 Joe Kucinski
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
rdnkjdi
1987 - 1996 F150 & Larger F-Series Trucks
12
Jul 19, 2013 12:28 AM
Gobstopper909
1994.5 - 1997 7.3L Power Stroke Diesel
18
Feb 4, 2009 05:19 PM
barnbridge
6.0L Power Stroke Diesel
29
Feb 17, 2008 11:59 AM
93tankus
1987 - 1996 F150 & Larger F-Series Trucks
4
Oct 22, 2007 04:30 PM
SrqScion
1994.5 - 1997 7.3L Power Stroke Diesel
16
Jul 17, 2007 05:36 PM




All times are GMT -5. The time now is 03:55 AM.

story-0
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-1
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-2
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-3
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-4
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-5
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-6
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-7
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-8
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-9
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE