Question about 1999 Chevrolet C/K 2500

1 Answer

Hydro booster leak

I as well leave little power steering fluids every where i park and do you know if that is a official recall? i have a 92 suburban 2500 with a 454 vortec. would i just call a chevy dealer mechanic or something?

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  • savage0687 Jun 16, 2009

    thats what i was kinda thinking? i looked online at several sites and only found 2. one for some fuel thing and one for the windshield wipers for whatever... a mechanic told me it was the gearbox on my booster and the only fix was to buy a new one and thats like 180 minium plus i plan on doing it myself...idk

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  • Chevrolet Master
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Any part of the system can leak, hoses are the most common source of leaks, have a shop look at the hoses 1st.

Posted on Jun 15, 2009

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Posted on Jan 02, 2017

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2001 Silverado 2500 HD Why Rear brakes don't work after I installed new hydro-boost power booster, master cylinder, calipers, and pads. I bled master cylinder before installing, and brakes beginn


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

Jul 23, 2017 | 2001 Chevrolet Silverado 2500HD

2 Answers

What causes the brakes and power steering to go out at the same time?


Are you a diesel? If you are do the recall ,for the hydro boost (brakes) you sound like it.There is a recall on the hydro boost and yes this is a power steering assist, and a brake power assist
Recall I.D # 04045000

May 02, 2011 | 2004 GMC Sierra 2500

2 Answers

I have a 2006 chevy silverado with a 6.6 litre diesle that has what i think is a power steering fluid leak up at the master cylander or break booster on the fire wall the hoses run from the power steering...


The Duramax trucks by Chevy and GMC use Hydro-Boost brakes, meaning that they use a hydrolic pump for the brakes and the steering. GM has had real trouble with leaky Hydrlic hoses on all their trucks for a few years (like my truck) for leaking coolant lines from the trans and as I found out today during my oil change, coming from the hydro-boost. These are replacable, but not under warrenty for you or me.

Jun 21, 2010 | Cars & Trucks

1 Answer

Power Steering and Power Brakes


ck power steering fluid level,,u may have hydro boost leak

Jan 31, 2010 | 2004 Chevrolet Suburban

2 Answers

1996 GMC Suburban Brake and Power Steering Failure


if you got the hydro brake boost system .check your power steering pump hoses for leaks .check master cylinder is leaking. fill power steering pump and master cylinder with fluid. the one that is the lowest that the one leaking. if your hydro boost brake unit is leaking .replace it .if power steering pump leaking. it not the hoses replace it . because if power steering goes out brakes will also go out.

Apr 29, 2009 | 1996 GMC Suburban

2 Answers

Power steering went out along w/brakes


Does it have a hydroboost brake booster? Is the belt still on the p/s pump? Have you checked the power steering fluid level? If yes and good to all, replace the Power steering Pump.

Mar 26, 2009 | 2005 Hummer H2

3 Answers

Power steering & power brakes


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.

Nov 04, 2008 | 2002 Chevrolet Silverado

2 Answers

Hydro boost


Hi,

Appreciate the "Ask Me" and my compliments, scary driving one of those in our roads.

Might you have to check the Brake Booster. Normally, there would be a vacuum line to the booster from the intake manifold. Common design calls for a PCV type valve at the entrance to the booster. Pls check this. It also operates on the same principle and therefore checks the same, you can blow one way but not the other; would have a sliding ball inside that acts as the valve. In some instances, it could be the diaphragm inside that might have a tear.

Of course, the Proportioning valve system must likewise be checked. I have heard a lot of brake problems with K2500 especially the rear drum.

Incidentally, there was a recall order of some sort. TSB 99-05-24-001A SEP 99 which addressed brake pull/wear, the recall involved replacing the proportioning valve.
  • The Technical Service Bulletin referenced previously discusses the issue surrounding the proportioning valve. Also, there's a corrosion issue which has resulted in the recall of the trucks in certain states.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

Aug 10, 2008 | 1999 Chevrolet C/K 2500

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