Chevy/GMC Duramax 01-04 LB7 Discussion of Chevy and GMC Trucks with LB7 Duramax Turbo Diesel Engines

Power Steering Leak

Thread Tools
 
Search this Thread
 
  #1  
Old 02-14-2008, 12:07 PM
Diesel-N-Dust's Avatar
Diesel Bomber
Thread Starter
Join Date: Apr 2007
Location: Cypress, Texas
Posts: 1,283
Received 58 Likes on 50 Posts
Default Power Steering Leak

My truck recently started leaking power steering fluid, It not leaking from the Pump itself or the steering box. It looks like it leaking from a line that goes to the brake booster.
Is this a common problem?
Is it an easy fix?

Thanks in advance.
 
  #2  
Old 02-14-2008, 12:09 PM
DangerousDuramax's Avatar
BOMBARDIER
Join Date: Apr 2007
Location: Houston, Tx
Posts: 6,804
Received 319 Likes on 271 Posts
Default

Yep, thats common on chebby. I've heard that running synthetic transmission fluid will fix it.
 
The following users liked this post:
Diesel-N-Dust (02-14-2008)
  #3  
Old 02-14-2008, 12:12 PM
Diesel-N-Dust's Avatar
Diesel Bomber
Thread Starter
Join Date: Apr 2007
Location: Cypress, Texas
Posts: 1,283
Received 58 Likes on 50 Posts
Default

I tried the Lucas treatment, Now it seems it is leaking worse.
I will try the synthetic tranny fluid.
 
  #4  
Old 02-14-2008, 12:14 PM
DangerousDuramax's Avatar
BOMBARDIER
Join Date: Apr 2007
Location: Houston, Tx
Posts: 6,804
Received 319 Likes on 271 Posts
Default

When I get to the point that I need to service my power steering I'm going to swap in some TranSynd.
 
  #5  
Old 02-14-2008, 12:43 PM
2500HeavyDuty's Avatar
Super Moderator
Join Date: Oct 2007
Location: Houston, Tx
Posts: 14,872
Received 764 Likes on 627 Posts
Default

You will probably have a better chance with the ATF than with the lucas. i went through about 4 bottles of lucas and many power steering bottles and one day had to use ATF and it looked like it stopped, but my leak was in a different spot.
 
  #6  
Old 02-14-2008, 12:51 PM
DangerousDuramax's Avatar
BOMBARDIER
Join Date: Apr 2007
Location: Houston, Tx
Posts: 6,804
Received 319 Likes on 271 Posts
Default

Yep, ATF swells polymers. Use synthetic ATF and it will also keep the system well lubed with a reduced friction factor.
 
  #7  
Old 02-14-2008, 12:53 PM
2500HeavyDuty's Avatar
Super Moderator
Join Date: Oct 2007
Location: Houston, Tx
Posts: 14,872
Received 764 Likes on 627 Posts
Default

Mobile one full synthetic
 
  #8  
Old 02-14-2008, 01:12 PM
DangerousDuramax's Avatar
BOMBARDIER
Join Date: Apr 2007
Location: Houston, Tx
Posts: 6,804
Received 319 Likes on 271 Posts
Default

I'll use TranSynd because that's what I run in my tranny's.
 
  #9  
Old 02-14-2008, 03:30 PM
LeadfootDuramax's Avatar
Diesel Wrench
Join Date: Dec 2007
Location: Houston, Tx
Posts: 971
Received 41 Likes on 37 Posts
Default

I finally began running Royal Purple Power Steering in my Jeep because the locker in the fton end was causing me all kinds of problems. It works much better with Royal Purple. Not sure that will solve the leak though.
 
  #10  
Old 02-14-2008, 03:46 PM
Rttoys's Avatar
Diesel Bomber
Join Date: May 2007
Location: Houston, TX
Posts: 1,221
Received 126 Likes on 88 Posts
Default

It's a pressure line, 'fix it in a can' is not a fix. Just replace the bad line or both, if you like, one hose is $20 the other is $30. With your truck as high as it is, it will be simple. Just remove the dr. side finder splash shield and you can access everything.

If you want to pin point the leak, start the truck and turn the wheel all the way to one direction (doesn't matter which direction) and hold it to the end. You'll see the leak.
 
The following users liked this post:
Diesel-N-Dust (02-14-2008)


Quick Reply: Power Steering Leak



All times are GMT -5. The time now is 08:56 AM.