Question about 2005 Chevrolet Silverado 2500HD 2WD

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I seen a comment of yours on another ? about brake fluid contamination and my 05 silverado has all brakes locking up. i had put power steering fluid in once a couple months ago due to a line blow-out to get home. my cap rubber is swelled. what have i done and what must i do to repair this?

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  • Chevrolet Master
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Well, all rubber seals/components will have to be replaced this includes but not limited to calipers, master cylinder, wheel cylinders, ABS unit... and the system most be flushed. The used of petroleum based fluids is a no no cause the rubber components in the system are not compatible therefore causing the rubber to swell and the brake system to fail.

Posted on Apr 14, 2014

Testimonial: "thank you! since i am going to do the repair myself can you tell me if brake clean will be sufficient to flush the lines? or what do i use? i understand i will need to replace each of the components as well."

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Sorry, have to agree with hector, anything in line with rubber seals will probably need to be replaced. start at front and work back, might get lucky and will not have to replace everything. good luck.

Posted on Apr 15, 2014

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Posted on Jan 02, 2017

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SOURCE: 2001 chevy sylverado 2500hd power steering and power brakes quit

check power steering fluid. first. if all good . power steering is going. your hydro boost brake system depends on the power steering pump if it goes out your brake go out.

Posted on Mar 29, 2009

  • 13 Answers

SOURCE: 2002 chevy silverado 2500HD (automatic)

the power brakes are a hydrolic system ran off of the power steering pump. therefore if you have a busted power steering hose the power brakes will not work.

Posted on Apr 21, 2009

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SOURCE: 00 Chevy EHCU HELP

bleed each separately

Posted on Aug 29, 2009

  • 1 Answer

SOURCE: 2002 Chevy silverado 2500HD No power steering or brakes

The shaft in your power steering pump has broken. Your brakes work off of a system known as Hydra-Boost. If this shaft is broken then your steering and brakes are lost. I contacted GM after I had my power steering pump replaced and they sent me a check for the cost of my repairs. My truck was not under warranty or recalled but earlier models (2500HD) had been recalled for the power steering pump shaft. The pump was the same part number for my 2002 2500HD as the recalled years. Good Luck!

Posted on Sep 02, 2009

  • 146 Answers

SOURCE: 02 silverado 2500 duramax- loss of power steering/brakes

I know GM decided to run the brakes and power steering vacumm all off of the power steering pump on some of their trucks. This could really be a big problem because if your power steering quit it would stop supplying your brakes with vacuum to stop the truck. In my experience I would check out the situation with the steering pump. Change it for a new one. Don't take any chances on smashing your truck.

Posted on Feb 21, 2010

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Can i put brake fluid in my power steering 94 plymouth grand voyager?


Never brake fluid and nothing else goes in brake master cylinder.

Put power steering fluid or automatic transmission fluid (dextron)

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The slash that you placed between the words steering/brake have me concerned. I certainly hope you did not think that these two systems are co-joined? The power steering system is a hydraulic system completely separate and isolated from the brake system. They also use two completely different types of fluid. Putting brake fluid in the power steering system would destroy it just as putting power steering fluid in the brake master cylinder will destroy it. The type(s) of rubber used in the seals for each of these systems demands they use their own fluid. Any cross-contamination will require a complete draining, cleaning, and replacement of ALL rubber components and seals. This would include the power steering pump and rack for the power steering system, and for the brake system the master cylinder, all calipers and wheel cylinder as well as the proportioning valve. If there is an ABS unit, it will need serviced as well.

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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:

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95 4x4 Toyota Forerunner V6 and ABS Brakes, When I'm driving in the morning or after the truck has sat still for 8 or more hours...the FRONT brakes start to lock up. If I pull over and sit for 10...


if it is only the front brakes locking up then i would say master cylinder but i have also seen where one of these fast lube places accidently put power steering fluid in the master cylinder and it will make all of the rubber seals swell and lock the brakes up but usually only after the vehicle has been driven for a while and you can pull over and let it cool down and take off again.they make a kit to check and see if the brake fluid is contaminated. good luck and let me know if this helped you .....................

Jun 13, 2011 | 1995 Toyota 4Runner

1 Answer

I need to top up the power stering fluid and need to know what tipe to use 1988 chevy silverado C3500 454 The power steering looks like it is incorperated into the brake booster


power steering is at the front of the engine and runs on the belt. The reservoir cap looks like this:
73b4b95.jpg To top off steering fluid, use standard steering fluid.

The reservoir in front of the brake booster is the brake master cylinder reservoir. To refill, use standard brake fluid. If it the truck is using brake fluid, check for leaks at the back of the master cylinder and at all wheels.

Please let us know if you have more questions.

Sep 25, 2010 | 1988 Chevrolet Silverado 2500

1 Answer

All 4 wheels locking up will free up slightly if u let brakes cool off


SOUNDS LIKE YOUR BRAKE FLUID MAY BE CONTAMINATED. IF THE WRONG FLUID HAS BEEN PUT IT IN BY ACCIDENT U WILL GET THE SAME RESULTS.

Aug 06, 2010 | 2000 Chevrolet Silverado

2 Answers

2002 chevy silverado 2500HD (automatic)


the power brakes are a hydrolic system ran off of the power steering pump. therefore if you have a busted power steering hose the power brakes will not work.

Feb 28, 2009 | 2002 Chevrolet Silverado 2500HD

2 Answers

2002 Chevy silverado 2500HD No power steering or brakes


The shaft in your power steering pump has broken. Your brakes work off of a system known as Hydra-Boost. If this shaft is broken then your steering and brakes are lost. I contacted GM after I had my power steering pump replaced and they sent me a check for the cost of my repairs. My truck was not under warranty or recalled but earlier models (2500HD) had been recalled for the power steering pump shaft. The pump was the same part number for my 2002 2500HD as the recalled years. Good Luck!

Feb 28, 2009 | 2002 Chevrolet Silverado 2500HD

1 Answer

2001 chevy sylverado 2500hd power steering and power brakes quit


check power steering fluid. first. if all good . power steering is going. your hydro boost brake system depends on the power steering pump if it goes out your brake go out.

Jan 12, 2009 | 2001 Chevrolet Silverado 1500

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

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