Question about 2001 GMC Savana

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Brakes sound like airbrakes and dont stop right 2001 blazor

The pedal will slowly go to floor somethimes. And it started after I hit my brakes realy hard

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You may have damaged your Master Cylinder or have a leaky Caliper Piston.

Posted on Jul 13, 2009

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Posted on Jan 02, 2017

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Brake pedal goes to floor after fixing leak in line and bleeding brakes


neither is bad. The proportioning valve is kicked and they can sometimes be a bear to re center. Here's the best way I've had success doing that. Before you try opening up any more bleeder screws you, 1)top off the brake fluid reservoir, 2) slowly pump the brake pedal, not all the way to the floor and without the engine running but with the key on, about 20 to 30 times. After you do that you very quickly hit the brake pedal very hard but not all the way to the floor. The repeated slow pumping of the pedal will very slowly put pressure into the line, even if it's air it will compress a little at a time and when you jab the pedal that one time at the end it will re-center the valve. Now here's the key. If the brake light is on it should shut off when that valve centers itself. That's when you must bleed the air out but whoever you have helping you tell them not to push the pedal all the way to the floor again or the valve will pop again. Open the bleeder to the caliper that had the blown line and then have them push slowly down on the pedal only half way to the floor and then stop pushing and hold position til you tighten the bleed screw. After you close the bleeder screw they can let up and do it again. If he pushes it to the floor and you hear a click that means the valve kicked again and you need to start over. Time consuming, yes but it works. I hope this makes sense. Sometimes it's hard to relay what I do to words on paper,.
Dale

Feb 23, 2015 | Cars & Trucks

1 Answer

Brake lights dont work on my 2001 volvo s80. All fuses and relays are good. The bulbs are good too. The third brake light and parking lights work too. Turn dignals are fine too. Whats my problem?


Sounds like the brake switch on floor under brake pedal, needs adjusting or its bad.When you put on the brakes, it sends power to rear stop lights. The pedal hits this switch. Good-Day! ( if all else is good )

Aug 31, 2014 | Cars & Trucks

2 Answers

When at a stop the brake will slowly start to cave in


Could be air,starts leak,master cylinder.

Feb 12, 2013 | Cars & Trucks

1 Answer

I am having problems with my brakes i think it could be a sensor can anybody help


Try this,sitting still,running,in park,hit the brake really quick and hard,
is the pedal ok? Then hit the pedal very softly slowly,and seeif it just fades to the floor .If this is the case the master cylinder is bad.
Also,keep in mind this vehicle had a twin cylinder,if you have complete failure of either end of the vehicle,the other half will still work but the pedal is very low,as you describe.
Check the fluid level,if only 1/2 the res.is full,that's the deal.

Jun 06, 2012 | 1998 Land Rover Range Rover

1 Answer

After having changed the rear brake shoes and wheel cylinders, and bled them the pedal was good. Then the pedal was going to the floor slowly so I had to pump the brakes to get enough stopping power....


It sounds that you have done a pretty good job at this point. Remember that the brake adjustment will dictate the amount of brake pedal. Recheck to make sure the right brake linings were used. Recheck to make sure the brakes on the rear are adjusted up as far as possible. As far as the bleeding, I have had many cars that will not bleed the sytem without the engine running to give it the pressure needed to pass through the master cylinder and lines. Have a WELL ventilated area, car in neutral, wheels chocked, and bleed the brakes with the engine running. Remember to take all safety precautions to avoid injury before attempting this.

Dec 29, 2010 | Honda Civic Cars & Trucks

1 Answer

Our kia amanti's breaks build up and stop the car, then when we use a wrench and blead the line under the hood the breaks start working normally again.


do you mean that you pump the brakes to build up pressure in order to stop?

bleeding brakes requires you to bleed them from each wheel starting at the right rear. procede as follows: have someone sit in the drivers seat. have them pump the brakes slowly and forceably to build up pressure. maintain force on the pedal. starting at the right rear, open the bleed screw slowly. the pedal will go to the floor and the fluid will drain. hold the pedal to the floor and tighten the bleed screw. repeat this procedure several times until you are sure there is no air in the line. follow these steps at each wheel- left rear, right front, left front. keep reservoir filled with fluid. fill after each wheel. (note) get a length of rubber hose that fits snuggly over the end of the bleed screw
and drain fluid into a container.

i think you were draining the anti-lock brake system. in which, case follow the steps above for that also.

Feb 25, 2010 | 2005 Kia Amanti

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