02 silverado 2500 duramax- loss of power steering/brakes

tranny fluid!

If you do a lot of heavy towing it may be time for another brake job .

It definitely sounds like the hydro booster. There are videos on YouTube that shows you how to do either. Depending on your skill level will determine which one you do. The main issue is bleeding the air out of the booster. It can be difficult. You will also need to bleed your brakes completely afterward. GMs are notorious for having the hydro boosters die on them.

Hello Patricia,

Have you checked the master brake cylinder reservoir for brake fluid loss?

I don't suspect the master cylinder as you have replaced it... but am more suspect of a leaking brake line or fitting which should have
been discovered when you had the system bled.

The only time I ever had a rear brake problem with a 2500 series Chevrolet was due to seized rear brake caliper guide pins...as your calipers are also new that is not your problem.

If your brake pedal feels spongy and travels to the floor board you have air in the system, a brake fluid leak or a failure in the power steering system, such as a broken hose, broken power steering pump drive belt, or failed pump, would result in a loss of pressure to both the hydro-boost and steering.

Find more information here:

. Hydro Boost Power Assist Systems Operation Diagnosis and Repair

To troubleshoot the issue,i suggest you to check the help link mentioned below:----

Power Steering Leaking Oil

http://technoanswers.blogspot.com/2012/11/power-steering-leaking-oil.html

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Also with these i suggest you to refer these help,oinks.
Once the problem is detected,these is to replace power steering pump and fluid running line:-----

In relation to these problem there are few solved help links,i suggest you to go through the list and click the required link:-----

Power Steering going out?

http://schematicsdiagram.blogspot.in/2012/04/power-steering-going-out.html

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How to Replace power steering pump on Chevy silverado 2500 HD?

http://technoanswers.blogspot.in/2012/02/how-to-replace-power-steering-pump-on.html

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How to replace Power steering rack and pinion gear on Chevy Silverado 2500 HD?

http://technoanswers.blogspot.in/2012/02/how-to-replace-power-steering-rack-and.html

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Power Recirculating Ball Steering Gear removal on Chevy silverado 2500 HD?

http://technoanswers.blogspot.in/2012/02/power-recirculating-ball-steering-gear.html

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Chevy Silverado 2500 HD steering wheel replacing Procedure?

http://technoanswers.blogspot.in/2012/02/chevy-silverado-2500-hd-steering-wheel.html

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Steering Wheel Locked?

http://schematicsdiagram.blogspot.com/2011/12/steering-wheel-locked.html

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How to Remove Power steering Pressure Hose on Dodge Stratus

http://schematicsdiagram.blogspot.com/2011/12/how-to-remove-power-steering-pressure.html

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How to replace power steering pump on Mitsubishi Diamante?

http://howtobyme.blogspot.com/2012/01/how-to-replace-power-steering-pump-on.html

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How to bleed power steering pump on Toyota?

http://repairhelpcenter.blogspot.in/2012/02/how-to-bleed-power-steering-pump-on.html

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How to replace power steering pump on Toyota Land cruiser?

http://repairhelpcenter.blogspot.in/2012/02/how-to-replace-power-steering-pump-on.html

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Steering service light ON GMC Sierra Denali?

http://technoanswers.blogspot.in/2012/02/steering-service-light-on-gmc-sierra.html

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Steering service light came on 2004 Pontiac Grand Prix

http://technoanswers.blogspot.in/2012/02/on-one-my-pontiac-grand-prix-relatred.html

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Check power steering message on Toyota?

http://schematicsdiagram.blogspot.in/2012/02/check-power-steering-message-on-toyota.html

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How to remove power steering pulley on 2002 Ford Taurus?

http://repairhelpcenter.blogspot.in/2012/03/how-to-remove-power-steering-pulley-on.html

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1992 Ford Aerostar Power steering and Alternator belt routing diagram?

http://carbeltrouting.blogspot.com/2011/12/1992-ford-aerostar-power-steering-and.html

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How to replace Power Steering Pump on Acura Car Models?

Also bleeding:

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-power-steering-pump-on.html

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How to replace Steering Linkage on Acura Car Models?

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-steering-linkage-on.html

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How to replace power steering pressure hose on mustang?

http://technoanswers.blogspot.in/2012/02/how-to-replace-power-steering-pressure.html

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STEERING SQUEAKS

http://alltypesofpartsreplacing.blogspot.com/2012/10/steering-squeaks.html

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Steering Column Diagram For 1990 Jeep Wrangler

http://schematicsdiagram.blogspot.in/2012/07/steering-column-diagram-for-1990-jeep.html

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How to replace Steering Wheel on Acura Car Models?

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-steering-wheel-on-acura.html

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How to replace Power Steering Pump on 1999 Acura TL?

http://howtobyme.blogspot.com/2011/11/how-to-replace-power-steering-pump-on.html

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These details will help.

Thanks.

racket pion stiring is out replace it

In relation to these problem there are few solved help links,i suggest you to go through the list and click the required link:-----

Power Steering going out? http://schematicsdiagram.blogspot.in/2012/04/power-steering-going-out.html

---------------
How to Replace power steering pump on Chevy silverado 2500 HD? http://technoanswers.blogspot.in/2012/02/how-to-replace-power-steering-pump-on.html
--------------- How to replace Power steering rack and pinion gear on Chevy Silverado 2500 HD? http://technoanswers.blogspot.in/2012/02/how-to-replace-power-steering-rack-and.html
------------- Power Recirculating Ball Steering Gear removal on Chevy silverado 2500 HD? http://technoanswers.blogspot.in/2012/02/power-recirculating-ball-steering-gear.html
----------- Chevy Silverado 2500 HD steering wheel replacing Procedure? http://technoanswers.blogspot.in/2012/02/chevy-silverado-2500-hd-steering-wheel.html
----------- Steering Wheel Locked? http://schematicsdiagram.blogspot.com/2011/12/steering-wheel-locked.html

---------------
How to Remove Power steering Pressure Hose on Dodge Stratus http://schematicsdiagram.blogspot.com/2011/12/how-to-remove-power-steering-pressure.html

------------
How to replace power steering pump on Mitsubishi Diamante?

http://howtobyme.blogspot.com/2012/01/how-to-replace-power-steering-pump-on.html

---------------
How to bleed power steering pump on Toyota? http://repairhelpcenter.blogspot.in/2012/02/how-to-bleed-power-steering-pump-on.html

---------------

----------How to replace power steering pump on Toyota Land cruiser?

http://repairhelpcenter.blogspot.in/2012/02/how-to-replace-power-steering-pump-on.html

-----------
Steering service light ON GMC Sierra Denali?

http://technoanswers.blogspot.in/2012/02/steering-service-light-on-gmc-sierra.html

---------
Steering service light came on 2004 Pontiac Grand Prix

http://technoanswers.blogspot.in/2012/02/on-one-my-pontiac-grand-prix-relatred.html

----------
Check power steering message on Toyota?

http://schematicsdiagram.blogspot.in/2012/02/check-power-steering-message-on-toyota.html

-------
How to remove power steering pulley on 2002 Ford Taurus? http://repairhelpcenter.blogspot.in/2012/03/how-to-remove-power-steering-pulley-on.html
---------1992 Ford Aerostar Power steering and Alternator belt routing diagram? http://carbeltrouting.blogspot.com/2011/12/1992-ford-aerostar-power-steering-and.html

----------------
How to replace Power Steering Pump on Acura Car Models?

Also bleeding:

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-power-steering-pump-on.html

--------------

How to replace Steering Linkage on Acura Car Models?

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-steering-linkage-on.html

---------------
How to replace power steering pressure hose on mustang? http://technoanswers.blogspot.in/2012/02/how-to-replace-power-steering-pressure.html

-------------
STEERING SQUEAKS http://alltypesofpartsreplacing.blogspot.com/2012/10/steering-squeaks.html
----------- Steering Column Diagram For 1990 Jeep Wrangler http://schematicsdiagram.blogspot.in/2012/07/steering-column-diagram-for-1990-jeep.html
------------- How to replace Steering Wheel on Acura Car Models?

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-steering-wheel-on-acura.html

------------
How to replace Power Steering Pump on 1999 Acura TL?

http://howtobyme.blogspot.com/2011/11/how-to-replace-power-steering-pump-on.html

-------------

These details will help.

Thanks.

check power steering fluid, if that is ok then the power steering unit may need replacing

First try rotating the tires to the rear. Does it go away? If you apply the brakes does it pull to the left? Could be a draging caliper or the slides may be hanging up.

Sounds to me like your power steering pump has gone bad. Being a vehicle with a hydro-boost brake system that would explain the power brake failure. Hydro-boost brake systems utilize pressurized power steering fluid to provide brake assist. In most lighter GVWR vehicles this function is performed by engine vacuum. There is a recall on certain Silverados and Sierras that addresses a faulty check ball in the booster, but your vehicle is affected by a steering issue as well. This would indicate to me that it is the pump. You can however check online to verify if your vehicle is affected by the recall. Hope this helps.