Lucas Oil power steering / hydroboost - Diesel Forum - TheDieselStop.com
Ford Diesel Forum / Powerstroke Forum
Ford Diesel Forum / Powerstroke Forum
Go Back   Diesel Forum - TheDieselStop.com > 1999-2007 Ford Super Duties > 99 & up 7.3L Power Stroke Engine and Drivetrain

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.

TheDieselstop.com is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 04-15-2011, 10:44 AM   #1 (permalink)
Junior Member
 
Join Date: Nov 2006
Posts: 22
My Photos: (0)
Feedback Score: 0 reviews
Lucas Oil power steering / hydroboost

I have a leak where my hydroboost meets the master cylinder. I can see the drip on the bottom side with the use of a mirror. Its been leaking for some time and I'm not sure if there is a seal between the two components that can be replaced or if the hydroboost is failing (the fluid leak is ATF, not brake fluid).
I'm leaving for a road trip Sunday and was thinking about putting a bottle of Lucas Oil Power Steering fluid w/ Stop Leak in the power steering pump. It says its compatible with all power steering but I wasn't sure if it is with ATF????
Does anyone know if it will hurt the system? Don't wanna make a little leak worse and have this grenade on me going down the highway w/ a trailer.

Thanks in advance for the help.
4fun
__________________
1999 F-350, ESOF 4x4, SRW, automatic, longbed & K&N airfilter
4fun is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 04-15-2011, 12:04 PM   #2 (permalink)
Senior Member
 
TonkaThunder's Avatar
 
Join Date: Feb 2008
Location: Madison, Wisconsin
Posts: 827
My Photos: (6)
Feedback Score: 0 reviews
I doubt its actually ATF in the power steering system but I have seen red power steering fluid. But the Lucas should work great for u, I put the power steering stuff in my truck just to try and quiet the pump down and it worked great!
__________________
03 F-350 DRW Lariat 7.3,4x4 6-Speed, 4.10Gears , 4 inch ProComp lift, BFG AT LT315/75R16, 3 in. spacer between duals.
GT38R 1.0 Housing
Banks Monster Exhaust, w/Turbo Elbow, AFE Stage 2 Cold Air Kit, South Bend Stg 2 Clutch & Cyro'ed Flywheel
Full Force Stage 1 Singles & TS 6-Position
2 Optima Red Tops
Auto Meter Boost and Pyro Gauges
8,200lbs---Cat Scale---Thats me and and 38 Gallons of Diesel

1987 Mustang GT Cobra Clone

34 Ft Kaufman Solid Deck 2-Car Hauler
TonkaThunder is offline   Reply With Quote Quick reply to this message
Old 04-15-2011, 01:26 PM   #3 (permalink)
Senior Member
 
tbpower's Avatar
 
Join Date: Dec 2008
Posts: 856
My Photos: (0)
Feedback Score: 0 reviews
Quote:
Originally Posted by 4fun View Post
I have a leak where my hydroboost meets the master cylinder. I can see the drip on the bottom side with the use of a mirror. Its been leaking for some time and I'm not sure if there is a seal between the two components that can be replaced or if the hydroboost is failing (the fluid leak is ATF, not brake fluid).
I'm leaving for a road trip Sunday and was thinking about putting a bottle of Lucas Oil Power Steering fluid w/ Stop Leak in the power steering pump. It says its compatible with all power steering but I wasn't sure if it is with ATF????
Does anyone know if it will hurt the system? Don't wanna make a little leak worse and have this grenade on me going down the highway w/ a trailer.

Thanks in advance for the help.
4fun
Personally I would fix the source of the leak instead of dumping that stuff in the system.

Quote:
Originally Posted by TonkaThunder View Post
I doubt its actually ATF in the power steering system but I have seen red power steering fluid. But the Lucas should work great for u, I put the power steering stuff in my truck just to try and quiet the pump down and it worked great!
Our trucks do use ATF for power steering. Check your owners manual.
__________________
2000 7.3 powerstroke. PHP 6 position chip (stock,high idle,60tow,80dd,100hp,no start) . 6637 riffraff filter kit . AIH delete. Oil crossover. 6.0 tranny cooler. In tank mods. Wicked Wheel. EBPV delete. Walker 21470 muffler. Riffraff FRX
tbpower is offline   Reply With Quote Quick reply to this message
Old 04-15-2011, 02:53 PM   #4 (permalink)
Senior Member
 
lance1955's Avatar
 
Join Date: Dec 2003
Posts: 609
My Photos: (0)
Feedback Score: 0 reviews
The power steering uses the same fluid thats in the tranny aka transmission fluid. If I were going to be ba llzy and put the lucas in I would probably buy the transmission fix stuff and only pour in a small amount. I would also make sure truck is good and hot when you add the treatment that stuff pours like honey. But when mixed with the fluid appears to thin out / mix well. Ive had good luck with lucas. I just dont know if Id try it in the hydro boost system. Your call though.
__________________
2002 Excursion 7.3L 200K+, After market tranny cooler, diesel site transmission filter kit, coolant filter kit and complete boot kit, bilstein shocks. Original transmission with mobile syn ATF
lance1955 is offline   Reply With Quote Quick reply to this message
Old 04-15-2011, 03:49 PM   #5 (permalink)
Senior Member
 
TonkaThunder's Avatar
 
Join Date: Feb 2008
Location: Madison, Wisconsin
Posts: 827
My Photos: (6)
Feedback Score: 0 reviews
Power steering fluid and ATF have very few if any legitamate differences, they are all hydraulic fluids. Besides the dealer puts in power steering fluid.
__________________
03 F-350 DRW Lariat 7.3,4x4 6-Speed, 4.10Gears , 4 inch ProComp lift, BFG AT LT315/75R16, 3 in. spacer between duals.
GT38R 1.0 Housing
Banks Monster Exhaust, w/Turbo Elbow, AFE Stage 2 Cold Air Kit, South Bend Stg 2 Clutch & Cyro'ed Flywheel
Full Force Stage 1 Singles & TS 6-Position
2 Optima Red Tops
Auto Meter Boost and Pyro Gauges
8,200lbs---Cat Scale---Thats me and and 38 Gallons of Diesel

1987 Mustang GT Cobra Clone

34 Ft Kaufman Solid Deck 2-Car Hauler

Last edited by TonkaThunder; 04-15-2011 at 03:58 PM.
TonkaThunder is offline   Reply With Quote Quick reply to this message
Old 04-15-2011, 04:33 PM   #6 (permalink)
Senior Member
 
tbpower's Avatar
 
Join Date: Dec 2008
Posts: 856
My Photos: (0)
Feedback Score: 0 reviews
Quote:
Originally Posted by TonkaThunder View Post
Power steering fluid and ATF have very few if any legitamate differences, they are all hydraulic fluids. Besides the dealer puts in power steering fluid.
I've heard that about the power steering fluid but I'll stick with what the manual calls for and mobile 1 synthetic atf.
__________________
2000 7.3 powerstroke. PHP 6 position chip (stock,high idle,60tow,80dd,100hp,no start) . 6637 riffraff filter kit . AIH delete. Oil crossover. 6.0 tranny cooler. In tank mods. Wicked Wheel. EBPV delete. Walker 21470 muffler. Riffraff FRX
tbpower is offline   Reply With Quote Quick reply to this message
Old 04-15-2011, 05:50 PM   #7 (permalink)
Junior Member
 
Join Date: Nov 2006
Posts: 22
My Photos: (0)
Feedback Score: 0 reviews
Thanks for the feedback.
FYI- The manual does say "Motorcraft Mercon ATF".

I'd already bought the Lucas Power Steering fluid while I was at the store, but I haven't added it. I agree it would be best to fix the actual problem, but I have a hard time thinking I have to change the actual hydroboost. Surely there's a seal I can replace????

The leak isn't too bad. It just bugs me knowing its there.

I guess for now I'm "on the fence" whether I'll add the Lucas or not.

If anyone has any info on replacing seals or using the additive for this purpose, I'd be interested in knowing more.

Thanks again,
4fun
__________________
1999 F-350, ESOF 4x4, SRW, automatic, longbed & K&N airfilter
4fun is offline   Reply With Quote Quick reply to this message
Old 04-15-2011, 08:21 PM   #8 (permalink)
Lifetime Supporting Member
 
klhansen's Avatar
 
Join Date: Jan 2003
Location: Eagle River, Alaska
Posts: 20,839
My Photos: (178)
Feedback Score: 0 reviews
Quote:
Originally Posted by TonkaThunder View Post
Besides the dealer puts in power steering fluid.
Then that dealer isn't following Ford's instructions.

Quote:
Originally Posted by 4fun View Post
I agree it would be best to fix the actual problem, but I have a hard time thinking I have to change the actual hydroboost. Surely there's a seal I can replace????
The service manual has nothing on repairing the hydroboost, just R&R instructions. Like a power steering pump for instance, working on a hydroboost is likely something for a specialty shop. Not saying it couldn't be done, but how-to info is pretty scarce, and as you're aware, loosing brake boost wouldn't be a good thing. So winging it on a repair of the hydroboost probably wouldn't make me feel all that warm and fuzzy.
__________________
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), AIS, coolant filter w/"hokum" bracket, regulated return, heated mirror mod, lighted cupholder, Marinco heater plug-in.

Hard or no-start? Check Here
klhansen is offline   Reply With Quote Quick reply to this message
Old 04-15-2011, 08:31 PM   #9 (permalink)
Junior Member
 
Join Date: Nov 2006
Posts: 22
My Photos: (0)
Feedback Score: 0 reviews
Thanks Klhansen.
I agree that info available is limited on hydro repair.
I appreciate everyone's feedback. I think I'll limp through the trip with the small leak until I can change the hydro. Although I'm still entertaining the idea of adding the Lucas if it gets too low while I'm away being that it's recomended that I replace the hydro anyway. Doesn't sound like I'll do anymore damage than is done. right???

Thanks,
4fun
__________________
1999 F-350, ESOF 4x4, SRW, automatic, longbed & K&N airfilter
4fun is offline   Reply With Quote Quick reply to this message
Old 04-16-2011, 03:08 PM   #10 (permalink)
Lifetime Supporting Member
 
klhansen's Avatar
 
Join Date: Jan 2003
Location: Eagle River, Alaska
Posts: 20,839
My Photos: (178)
Feedback Score: 0 reviews
Quote:
Originally Posted by 4fun View Post
Although I'm still entertaining the idea of adding the Lucas if it gets too low while I'm away being that it's recomended that I replace the hydro anyway. Doesn't sound like I'll do anymore damage than is done. right???
I'd probably agree with that. I have tried "snake oil" fixes in the past, usually when the alternative was ripping the offending part out and replacing it.

Good luck on your trip. I'll bet you'll be OK. I've noticed a small drip at the brake pushrod inside the firewall on my truck, but have never had any issues with the hydroboost after just wiping it off. Just think of the drips as lubricating the seals.

Just found this while browsing around. More info on Hydroboost operation, but again not much on repair of the unit itself.
http://www.brakeandfrontend.com/Arti...t_systems.aspx
__________________
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), AIS, coolant filter w/"hokum" bracket, regulated return, heated mirror mod, lighted cupholder, Marinco heater plug-in.

Hard or no-start? Check Here

Last edited by klhansen; 04-16-2011 at 03:46 PM. Reason: Found more interesting stuff
klhansen is offline   Reply With Quote Quick reply to this message
Old 04-16-2011, 05:43 PM   #11 (permalink)
Member
 
MACE_Hardware's Avatar
 
Join Date: Jan 2004
Posts: 65
My Photos: (8)
Feedback Score: 0 reviews
Quote:
Originally Posted by 4fun View Post
I have a leak where my hydroboost meets the master cylinder. I can see the drip on the bottom side with the use of a mirror.
Now don't yell at me because I'm maybe clueless here and I'm just sitting at my desk and not looking at my truck....

...but...

I've had to replace the pressure hose from my power steering pump twice in 150k miles. They have a goofy sealed swivel connection that fails on the pump side.

Could you be seeing a drip from a similar connection on the hydroboost side?
__________________
2002 Crew 4x4 Long Bed 7.3 PSD (more to come)
MACE_Hardware is offline   Reply With Quote Quick reply to this message
Old 04-25-2011, 02:07 PM   #12 (permalink)
Junior Member
 
Join Date: Nov 2006
Posts: 22
My Photos: (0)
Feedback Score: 0 reviews
Sorry for the delayed response guys. I was away from my computer while on vacation.

Anyway, I returned the Lucas "Power Steering" additive and exchanged it for thier "Transmission Fix" (which has a stop leak additive in it too) per Lance1955 suggestion. I agreed it made sense to do that with the ATF already in the system.

So I added a small amount prior to the 200 mile trip and then added another small dose yesterday before my return trip. I guess time will tell if it helps or not.

Klhansen - thanks for the link.

Mace Hardware - I cleaned the hydroboost area thoroughly and drove the truck one day. Then checked all over for the leak and I'm quite confident that its dripping out of the weep hole on the bottom side of the hydro where it mates to the master cylinder. The only way I could even find it was with a mirror.

I'll let you know if the snake oil eventually works.

4fun
__________________
1999 F-350, ESOF 4x4, SRW, automatic, longbed & K&N airfilter
4fun is offline   Reply With Quote Quick reply to this message
Old 04-26-2011, 01:32 PM   #13 (permalink)
Senior Member
 
jstrauss's Avatar
 
Join Date: Jan 2002
Location: Texas
Posts: 719
My Photos: (0)
Feedback Score: 0 reviews
I put the Lucas power steering stuff in my 2005 Escape because the rack had a slight leak. At first, the steering was so silky smooth, it felt like something was wrong with it - I eventually got used to it so it feels normal now. Also the leak is gone, so the stuff does work. The only downside is if it's cold out (like less than 40F) the steering is real stiff for about the first 20-30 seconds after you start it up (cuz it made the fluid thicker, I guess) but otherwise, works good.
__________________
1991 F150 SC 4x4 7.5L/ZF5
1991 SAE Bronco 7.3L IDI NA/ZF5
1974 F350 Tow Truck 360/T18
2005 Escape 2.3L/CD4E
jstrauss is offline   Reply With Quote Quick reply to this message
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:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

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



Wheel & Tire Center

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 01:58 PM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.