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On an '03 gmc 2500hd duramax, I am loosing power steering fluid out of the break between the master cylinder and the hydroboost. I believe that the hydroboost is going to have to be changed out or

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Posted on Jan 02, 2017

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TheValley
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SOURCE: 4X4 inop on 2003 GMC Sierra 2500HD

I have found that when you are going to engauge 4x4 high, it is best to only be going about 3 miles an hour. Not faster, not stopped. It likes some movement to help it mesh. I've had perfect shifts since I started this. Hope it helps. Wade.

Posted on Jan 27, 2009

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localwonder
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SOURCE: i need a diagram of a 1995 gmc safari v6 power

Diagrams below


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Posted on May 26, 2009

badealer888
  • 414 Answers

SOURCE: 2002 GMC 2500HD Duramax No

TEST the vacuum pump. Both systems are run by it. Pressure should be at least 10psi right out of pump at 1000 rpm.
P.S. If pressure varies more than about 4 psi as the rpm vary the pump is failling.

Posted on Jun 23, 2009

dmsr63
  • 2050 Answers

SOURCE: I have a slow brake fluid loss. I think it may

Not at the line to cylinder connection, but internal there are.
You need to have a good look under the vehicle for a leak, and even pull all four wheels to closer inspect calipers. (Or wheel cylinders if you have rear drum brakes)
Also, keep in mind that your brake fluid level will go down slighly as the brake pads wear down. When your brakes are replaced new, the mechanic pushes your caliper pistons back in, to allow for the new and thicker brake pads, and the fluid level will go back up into the master cylinder.

Posted on Sep 24, 2009

pippall
  • 1486 Answers

SOURCE: power steering pump on my 1997 GMC K2500 truck??

Check the power steering fluid level.Allso check the master cylinder level.Witch ever is low is your problem k

Posted on Nov 08, 2009

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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

Power steering and brakes hard


Look and if you have the hydroboost system on your vehicle..If so the power steering pump control the brake assit and the power steering..Then if you have that system,, check the power steering fluid level ..If its not low then you might have a bad powersteering pump..The hydroboost is located right behind the master cylinder..It has hoses coming off of it and circles back around to the pump..

Sep 24, 2011 | 2000 Chevrolet Astro

2 Answers

Truck wont stop,brake pedal goes to floor, hydroboost, steering pump, replaced


This sounds like a bad master cylinder, are you getting a brake light?

Sep 14, 2011 | 2004 GMC Sierra

1 Answer

How are you i have GMC sierra 1500 hyprid . the problem is no power steering and no brake this two problem get togother


make sure it has power steering fluid in it see if it has a leak. those have hydroboost brake assist - which is power assist from the steering pump. If the hydroboost goes out, no power steering.

May 04, 2011 | GMC Sierra 1500 Hybrid Cars & Trucks

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

3 Answers

NO POWER STEERING AND NO BRAKES WE CHANGED P/S PUMP AND THE HYDRO BOOST NOW WHAT


The brakes and the Power Steering are two different systems and two different problems. The brake problem is going to be a caliper or master cylinder issue which maybe a Vacuum issue if the Power Booster hose is leaking or disconnected from the master cylinder. The power steering is going to be low fluid in the power steering pump, faulty power steering pump (Obvious if you were hearing a whine that got louder as you turned the wheels, or the Power assist piston that connects to the tie rods.

Mar 02, 2011 | 2000 GMC Sierra

3 Answers

Power steering and brakes stopped working in my 2003 GMC sierra 2500 HD..replaced water pump and belt..still not working..


You probably have hydroboost brakes and that system is powered by the power steering unit. If you have no steering and brakes, the first thing to check is the power steering pump. Check for low/no fluid. If the fluid is okay then the pump might not be pumping and you will need to replace it.

Dec 26, 2010 | 2003 GMC Sierra 2500HD

1 Answer

My 2000 3500CK break master cylinder is leaking fluid out of the drip hole on the bottom of the cylinder?


They are designed to do that when they go bad. That means it is time to get it replaced. 2 things need to be considered with your truck: 1st, does it use a hydroboost brake system? If it is a diesel, than yes, but some gas engines did as well. If you have lines running from your power steering pump to the back of your master cylinder, it is a hydroboost. 2nd, does your truck have anti-lock brakes? If you answered yes to either, than, unfortunately, you will need to get or pay someone with a scan tool to bleed the system after it is replaced. However, you may be able to get it real close yourself if the brake lines leaving the master cylinder are angled downwards at all. If they are, then you can bench bleed the new cylinder and install it yourself, and as long as fluid did not leak out of the lines, you should be alright.

Nov 03, 2009 | 2000 Chevrolet 3500

1 Answer

I press my clutch and get no resistance and cant get into any gear? 2003 gmc sierra 8.1 4x4 2500hd 5 speed


Check fluid level in clutch master cylinder, if fluid is full then bleed clutch system.

If you still have no pedal resistance you will need a new master or slave cylinder for the clutch.

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Oct 30, 2009 | 2003 GMC Sierra 2500HD

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