Question about Chevrolet Silverado 2500

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I have a 1999 Chevy Silverado 2500 with the hydroboost. I am continually leaking power steering fluid from the bottom of the boost near the brake master cylinder. Is this a pressure bleed off or is there a problem with the hydroboost? Is the blue 2" diameter cylinder attached the unit near the firewall a filter that may be clooged and causing back pressure? There appears to be no other leaks in the system. I had no luck at a reputable parts dealer on theese questions.

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6ya6ya
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Posted on Jan 02, 2017

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rockitman187
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SOURCE: Hydro-boost on 1985 Diesel Chevrolet truck

Here

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Posted on Feb 08, 2009

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hondakilla
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SOURCE: 94 suburban PS leak

The brake booster is replaceable a remanned unit cost around 225 dollars and does not include the master cylinder...

Posted on Apr 04, 2010

  • 1 Answer

SOURCE: my 1994 surburban Power brake units using the

You need to either have the hydro-booster rebuilt or buy a new one.

Posted on Jun 30, 2010

emissionwiz
  • 76109 Answers

SOURCE: 1994 gmc 3500 leak between master cylinder and power brake boost anybody have a picture

The rear seal of the master cylinder plunger is leaking, you must replace the master cylinder to correct this.

Posted on Jul 09, 2012

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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

1 Answer

Power steering hard and brakes are very weak


It would appear that your vehicle has a Hydroboost system (many Chevys do), which uses hydraulic pressure from the power steering pump to also boost the brakes. Check your power steer fluid level. If it is OK, then either you have air in the system, or the pump is failing. Also check all the hoses and pipes between the pump and brake master cylinder for leakage.

Mar 23, 2012 | 2002 Chevrolet Silverado 2500HD

1 Answer

2001 Chevy Silverado 3500 6.0L V8 4x4 Dually, I replaced the power steering pump about 2 months ago, now I have power steering fluid leaking from underneath drivers side dash and carpet is saturated, also...


This sounds like the hydroboost unit is leaking.behind the master cylinderThe braking system on this using the power steering pump to provide power assisted brakes instead of a brake booster. The hydroboost unit most likely needs replaced.

Apr 19, 2011 | Chevrolet Silverado 3500 Cars & Trucks

1 Answer

My brakes feel hard and the abs does not work i dont think also no power steering looked at new ones at auto zone they asked me if it had vacuum boost or something makes me almost think the vacuum is bad...


It likely has hydroboost brakes. A bad power steering pump or a power steering pump that is low on fluid would cause all your problems. Is this gas or diesel?

Jan 23, 2011 | 2000 Chevrolet Silverado 2500

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

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.

Feb 20, 2010 | 2002 Chevrolet Silverado 1500HD

1 Answer

I replaced the hydro boost on my 2000 2500 silverado because the original one was leaking.since then the brakes seem to have no power or boost.i purchased the reman. from o'reileys.do you think the reman...


It could be defective it just gets install make sure you have enough power steering fluid at the power steering pump, I have tow trucks with hydro boosters and they just get install and that's it. return it and get another one.Hope this was very helpful.

Jan 30, 2010 | 2000 Chevrolet Silverado 2500

2 Answers

ABS and BRAKE light at the same time


push the pedal and see if it goes to the floor slowly or fast, if so,some thing like this i would lay on the ground in the back and have some one push the pedlal and hold it, look for fluid, like wet spot near the wheels first ( i have seen wheel cylinder go bad but not leak alot at one time so keep that in mind too) and make your way to the front on the driver side inside of the fram.i dont think its the master cylinder but see if you can see a wet spot at the bottom of the master and the booster( i seen masters not leak as will )

leaks will make the ABS lite come on

Apr 11, 2009 | 1999 Chevrolet Silverado 1500

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

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

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