Will a bad powersteering pump cause brake failure - Diesel Forum - TheDieselStop.com
'99 & up 7.3L Power Stroke Engine and Drivetrain Discussion of the '99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

 
LinkBack Thread Tools Display Modes
post #1 of 9 (permalink) Old 09-02-2019, 07:36 PM Thread Starter
Senior Member
 
Texas_proud77836's Avatar
 
Join Date: Feb 2015
Location: Burleson
Posts: 520
My Photos: (0)
Feedback Score: 0 reviews
Will a bad powersteering pump cause brake failure

I don’t use the dually often. Usually just leave it hooked to the cattle trailer. My fatbed was full so i took it 60 miles for 12ft material. Lots of twists and turns down rough back roads. The power steering pump is relatively new I’d say about 2 years old. The the steering has has always been still but 1-10 it’s an 8. Leaving the back roads about to get on the hwy I hit the breaks and it felt like my truck died (thought it did) in rolled real quick to a side road check the brake and steering fluid all was fine. Waiting and went to drive as the breaks started workin, soon as I go to turn and put pressure on the steering pump the breaks failed. It’s been awhile and the car wash is close to the backroads home. I stopped to wash the truck since it has been sittin and to also give it time to cool down (if it needed cooled down)... leaving the car wash I had no power steering. Lots of turn because i has a good neck. I get on the hwy, thinking i can roll on the side till i hit my exit home (rural area) breaks worked fine slowing down. They only don’t work when I turn and put pressure on the pump.

Should’ve let the truck idle 10-15 minutes before making the trip maybe the cold fluid and high rpms burnt the pump. I have burnt up pumps as a kid doing pasture dounuts at high RPMs.

I guess my question, will a bad steering pump cause break failure? And if it’s 2 years Napa should probably exchange it? I’m sure I have the receipt somewhere. More or less worried about the brakes.... almost took this truck last week to get 9000 pounds of cross ties... without truck brakes would’ve been scary. Even with dual trailer brakes instill had to press the button to engage them all the way making my stop with the 1500hd i have.
Texas_proud77836 is offline  
Sponsored Links
Advertisement
 
post #2 of 9 (permalink) Old 09-02-2019, 10:59 PM
Lifetime Supporting Member
 
klhansen's Avatar
 
Join Date: Jan 2003
Location: Eagle River, Alaska
Posts: 24,684
My Photos: (180)
Feedback Score: 0 reviews
The power steering pump does supply power to both the steering and brakes. But usually, applying the brakes robs power from the steering (stand on the brake pedal and try to turn the wheels when standing still).
Your issue may be a problem with power steering pressure, or the hydroboost unit may be going bad on you. You should still have some brakes, even without the hydroboost working, but you'd need a lot more pedal pressure from your foot to get them to work.

First truck -- 1929 Model A Ford pickup, restored from ground up. Wish I still had it!
'99.5 F250 PSD Supercab LB 4x4, ZF-6 w/SB Con OFE, 3.73LS, Boost & pyro gauges, Swamps S175/146 injectors, DP 80 HP Econo PCM (classic version
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
), AIS,
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
regulated return,
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
klhansen is offline  
post #3 of 9 (permalink) Old 09-02-2019, 11:16 PM Thread Starter
Senior Member
 
Texas_proud77836's Avatar
 
Join Date: Feb 2015
Location: Burleson
Posts: 520
My Photos: (0)
Feedback Score: 0 reviews
Quote:
Originally Posted by klhansen View Post
The power steering pump does supply power to both the steering and brakes. But usually, applying the brakes robs power from the steering (stand on the brake pedal and try to turn the wheels when standing still).
Your issue may be a problem with power steering pressure, or the hydroboost unit may be going bad on you. You should still have some brakes, even without the hydroboost working, but you'd need a lot more pedal pressure from your foot to get them to work.
Exactly what you mentioned is the problem. Brake peddle gets hard and didn’t want to work when i tried to turn the wheel. Not sure how I’d go about checking power steering pressure. Just priced the hydro boost... pretty expensive.
Texas_proud77836 is offline  
Sponsored Links
Advertisement
 
post #4 of 9 (permalink) Old 09-02-2019, 11:26 PM
Lifetime Supporting Member
 
klhansen's Avatar
 
Join Date: Jan 2003
Location: Eagle River, Alaska
Posts: 24,684
My Photos: (180)
Feedback Score: 0 reviews
Try flushing out the power steering system with a synthetic ATF (I use Mobil 1 Syn ATF). You can do that by removing the hose from the driver's side of the hydroboost and sticking a hose leading to a bucket on the fitting. Then suction as much fluid out of the reservoir as you can, and fill it to the brim with new ATF, then start the engine, run it at about 1200 rpm and run the steering wheel from stop to stop multiple times, and apply the brakes as well. Keep the PS pump reservoir full while you do that (it helps if you have assistance). It'll take 2-1/2 to 3 quarts. When you see nice clean fluid coming out into your bucket, restore the hose connection to the hydroboost and top off the reservoir. That MAY help.
But it's kind of the nature of the beast. Ford has a spec somewhere for pump flow. I doubt it's the hydroboost causing the problem.

First truck -- 1929 Model A Ford pickup, restored from ground up. Wish I still had it!
'99.5 F250 PSD Supercab LB 4x4, ZF-6 w/SB Con OFE, 3.73LS, Boost & pyro gauges, Swamps S175/146 injectors, DP 80 HP Econo PCM (classic version
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
), AIS,
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
regulated return,
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
klhansen is offline  
post #5 of 9 (permalink) Old 09-02-2019, 11:55 PM
Senior Member
 
Join Date: Aug 2007
Location: California
Posts: 1,935
My Photos: (0)
Feedback Score: 0 reviews
What kind of fluid did you have in that hydroboost? Remember, it takes automatic transmission fluid, not brake or steering fluid.

2001 F350 XLT 4X4 crew cab, dual rear wheels, long bed, black, 7.3l turbo diesel, automatic transmission, 4.10, shift on the fly, running boards, sliding rear window, 38 gal fuel tank, Odyssey extreme 65-PC1750T batteries, Michelin LTX-MS2 rear tires, Sumitomo Encounter front tires, Shell Rotella Ultra elc, 11,500 gvwr, 20,000 gcwr, 7500 gvw, completely stock, 114,000 miles when purchased, now has 250,000 miles, repairs so far: two starters, batteries, cps, brakes, tires, alternator, ball joints, locking hub, wheel hub, AC compressor, serpentine belt, power steering pump, driver's side window, ignition switch, o-ring, Spectra premium radiator, water pump, fan clutch, fan blades, thermostat, thermostat housing, tensioner. Stolen twice so far, but recovered both times with major damage.

2005 Nomad Rampage toyhauler made by Skyline. 11,500lb gvwr.
DonWarkentin is offline  
post #6 of 9 (permalink) Old 09-03-2019, 10:51 AM Thread Starter
Senior Member
 
Texas_proud77836's Avatar
 
Join Date: Feb 2015
Location: Burleson
Posts: 520
My Photos: (0)
Feedback Score: 0 reviews
I see the line you mentions on the right hand side. The steering. Fluid is red, far from being burnt. I called Napa, they said since the steering has been stiff this entire time even after replacing the pump it could either be the brake booster or the steering box. Does anyone believe it could be the steering box? I do see lines run from the booster into it. Sorta makes sense. Then the steering has always been stiff. They honestly recommended me taking it to a shop since the booster it steering box cost so much and didn’t want to throw money away guessing.
Texas_proud77836 is offline  
post #7 of 9 (permalink) Old 09-03-2019, 04:20 PM Thread Starter
Senior Member
 
Texas_proud77836's Avatar
 
Join Date: Feb 2015
Location: Burleson
Posts: 520
My Photos: (0)
Feedback Score: 0 reviews
Power steering is for the most part not working now. Stopped by a local garage. He thinks the reman pump I put on is going out. Not allowing enough pressure for the brakes and steering.
Texas_proud77836 is offline  
post #8 of 9 (permalink) Old 09-03-2019, 06:54 PM
Lifetime Supporting Member
 
ArcticDriver's Avatar
 
Join Date: Apr 2015
Location: Longmont, CO
Posts: 3,648
My Photos: (0)
Feedback Score: 0 reviews
When you follow KLHansens instructions and you are turning the wheels back & forth, I found its best to turn the steering wheel nice and slow.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
2002 F-250 4x4 CC SB 7.3 PSD w/4R100. 182,000 miles.
NOS Black CPS. ScanGauge-II, AIC, Bilstein 5100, Stancor GPR, Marinco Mod, B&W Turnover Ball, Michelin Defender LTX


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
2002 F-250 4x4 SC LB 7.3 PSD w/ZF-6. 177,000 miles.
NOS Black CPS. ScanGauge-II. Bilstein 5100. Stancor GPR. Walker BTM. Noco Mod. Michelin Defender LTX 285/75/16.

SOLD:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
2000 F-250 4x4 SC SB 7.3 PSD w/4R100. 164,000 miles.
NOS Black CPS. Rebuilt Fuel bowl w/gold spring, 6.0 Cooler, Walker BTM, Stancor GPR, Michelin LTX M&S2.

Last edited by ArcticDriver; 09-04-2019 at 08:03 AM.
ArcticDriver is offline  
post #9 of 9 (permalink) Old 09-04-2019, 09:24 AM Thread Starter
Senior Member
 
Texas_proud77836's Avatar
 
Join Date: Feb 2015
Location: Burleson
Posts: 520
My Photos: (0)
Feedback Score: 0 reviews
Quote:
Originally Posted by ArcticDriver View Post
When you follow KLHansens instructions and you are turning the wheels back & forth, I found its best to turn the steering wheel nice and slow.
Power steering is completely out now. Pretty sure it’s the pump. Found the receipt, I bought it January 2018.... I can get another free. If it doesn’t fix it I’ll take it to a mechanic. The hydro boost or gearing box are really expensive. I’ve always jumped the gun overthinking causing me to throw money out the window. I hope it’s just simple. The solution always ends up being simple, I just complicate it.

I worry it may be the gear box because steering has always been stiff. That’s why I put a new pump on it last year. They are only $67 so i said might as well see if it helps but the steering was still stiff.
Texas_proud77836 is offline  
Sponsored Links
Advertisement
 
Reply

  Diesel Forum - TheDieselStop.com > 1999-2007 Ford Super Duties > '99 & up 7.3L Power Stroke Engine and Drivetrain

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Diesel Forum - TheDieselStop.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome