hydroboost leaking - Chevy and GMC Duramax Diesel Forum

General Discussion General Diesel Discussion.

 
LinkBack Thread Tools Display Modes
post #1 of 8 (permalink) Old 11-01-2010, 07:50 PM Thread Starter
Junior Member
 
ajs2379's Avatar
 
Join Date: Jan 2008
Location: Polk City, Iowa
Posts: 69
hydroboost leaking

hey guys, I have a leak that I think is coming from the hydroboost. master and hydroboost are oily and inside the wheel well on the drivers side is also oily. Is the hydro a common problem on these trucks? Do i just need to replace it or is there any parts to fix them? also ive noticed lately that when Im turning the wheel quickly the p.s. pump whines like it is low on fluid. I did a H.B. flush recently hoping that would help the prob but it didnt. I guess im leaning toward the HB, just looking for anyone who has had a similar problem before i go replacing parts! Thanks!

2004.5 LLY Extended cab 4x4 2500HD
4" Turbo Back Exhaust
PPE Standard------------->melted
KB Modded mouthpiece---->melted
Hook'em modded air box--->melted

That's what I had...untill the block heater caught fire and burned her down!
ajs2379 is offline  
Sponsored Links
Advertisement
 
post #2 of 8 (permalink) Old 11-01-2010, 10:05 PM
DuramaxForum Enthusiast
 
Killerbee's Avatar
 
Join Date: Sep 2007
Location: Phoenix
Posts: 4,016
Please post back if you solve your whining issue. It sounds like your flow control valve needs a spring shim. Whining usually comes from resonance stemming from pressure bypass. Increase the pressure with a spring mod, and the whining should stop.

Is it the same kind of whine you hear at the steering limit?

Michael
Killerbee is offline  
post #3 of 8 (permalink) Old 11-03-2010, 03:02 PM Thread Starter
Junior Member
 
ajs2379's Avatar
 
Join Date: Jan 2008
Location: Polk City, Iowa
Posts: 69
I dont really have much of a whine at the steering limit...mine sounds like when you do the HB flush on your last turn of the wheel when you first start to get low on fluid. dont really know how else to describe it.

2004.5 LLY Extended cab 4x4 2500HD
4" Turbo Back Exhaust
PPE Standard------------->melted
KB Modded mouthpiece---->melted
Hook'em modded air box--->melted

That's what I had...untill the block heater caught fire and burned her down!
ajs2379 is offline  
post #4 of 8 (permalink) Old 11-03-2010, 03:23 PM
LHN...We ARE the Joneses
 
Hook'em_Horns!'s Avatar
 
Join Date: May 2008
Location: Awww-stin, TX
Posts: 16,672
Send a message via Yahoo to Hook'em_Horns! Send a message via Skype™ to Hook'em_Horns!
It’s whining because you have a leak and it’s low on fluid in the pump reservoir. Flushing regularly will extend the life, you may have waited too long to start. The unit swap only takes about 30 minutes total and it’s easy to do.

The GM part number is 15854059 for a new one.
Quote:
GMpartsdirect.com’s price:
GM PART # 15854059
CATEGORY: All
PACK QTY: 1
CORE CHARGE: $0.00
GM LIST: $598.90
OUR PRICE: $305.44
Remans can be had for cheaper, but I’ve never tried those.

2007 LBZ 3500 LT3 DRW Crew Cab, Sulastics, Putnam XDR 15K, B&W 30K-Turnover GN+Companion, Ride-Rite Air...EFI'd by Rob
2008 LMM 3500WT DRW Crew Cab, 8 'Flat/GN, Workforce Alum Toolbox, Ride-Rite Air

Use-ta Haves 2006-6.0 3500 WT DRW ExCab Flatbed, 2005-LLY 3500 LS DRW Crew Cab, 2002-LB7 3500 LS DRW Crew Cab
I Live my life in such a way that when my feet hit the floor in the morning...Satan shudders & says "Oh shit, he's awake!"

Hook'em_Horns! is online now  
post #5 of 8 (permalink) Old 11-03-2010, 03:24 PM Thread Starter
Junior Member
 
ajs2379's Avatar
 
Join Date: Jan 2008
Location: Polk City, Iowa
Posts: 69
KB, where do I get a spring shim? Also, I checked the steering limit and could hear the slight whine that you mentioned...not the same whine that I have. Dont know If the pump could be going bad also? First thing Im trying to fix is my fluid leak near the the HB...havnt pinpointed it yet.

Thanks!

2004.5 LLY Extended cab 4x4 2500HD
4" Turbo Back Exhaust
PPE Standard------------->melted
KB Modded mouthpiece---->melted
Hook'em modded air box--->melted

That's what I had...untill the block heater caught fire and burned her down!
ajs2379 is offline  
post #6 of 8 (permalink) Old 11-03-2010, 03:30 PM Thread Starter
Junior Member
 
ajs2379's Avatar
 
Join Date: Jan 2008
Location: Polk City, Iowa
Posts: 69
Hook'em, It actually kept doing it even after my last hb flush when it was topped off...I thought the flush would take care of it but no luck. wondering if the pump is getting weak or if the shim would help it out?? BTW...how bout that Iowa State football team!?? Sorry!, not very often I get to say that about ISU!!

2004.5 LLY Extended cab 4x4 2500HD
4" Turbo Back Exhaust
PPE Standard------------->melted
KB Modded mouthpiece---->melted
Hook'em modded air box--->melted

That's what I had...untill the block heater caught fire and burned her down!
ajs2379 is offline  
post #7 of 8 (permalink) Old 11-03-2010, 04:04 PM
LHN...We ARE the Joneses
 
Hook'em_Horns!'s Avatar
 
Join Date: May 2008
Location: Awww-stin, TX
Posts: 16,672
Send a message via Yahoo to Hook'em_Horns! Send a message via Skype™ to Hook'em_Horns!
1st thing is to correct the HB prob. If it's leaking where it joins the Master, the seals on the rod are worn and leaking by...you have to replace the unit. When you do, most likely everything else will behave and run normal again.

Football? What's that?
At least we're better than the Cowboys (and I don't mean OSU).

2007 LBZ 3500 LT3 DRW Crew Cab, Sulastics, Putnam XDR 15K, B&W 30K-Turnover GN+Companion, Ride-Rite Air...EFI'd by Rob
2008 LMM 3500WT DRW Crew Cab, 8 'Flat/GN, Workforce Alum Toolbox, Ride-Rite Air

Use-ta Haves 2006-6.0 3500 WT DRW ExCab Flatbed, 2005-LLY 3500 LS DRW Crew Cab, 2002-LB7 3500 LS DRW Crew Cab
I Live my life in such a way that when my feet hit the floor in the morning...Satan shudders & says "Oh shit, he's awake!"


Last edited by Hook'em_Horns!; 11-03-2010 at 04:07 PM.
Hook'em_Horns! is online now  
post #8 of 8 (permalink) Old 11-03-2010, 04:31 PM
Firefighter/EMT-B
 
Firefighter02's Avatar
 
Join Date: Oct 2010
Location: Southern Indiana
Posts: 426
while you are working on the hb make sure your pressure lines aren't leaking. I just replaced both of my lines, i had the same problem with trying to find a leak, turns out the lines were only half the problem. hb is next.

04 3500 Silverado CC Dually 4x4
Banks Six Gun
Banks Ram Air Intake With Scoop
Banks Monster Exhaust/Turbo Back/Black Tip
All Lights Blacked Out
Moto Metal Black Wheels
Firefighter02 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Chevy and GMC Duramax Diesel Forum 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









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.



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