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Brake pedal goes to the floor - K2500 GMC Cars & Trucks

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The brake pedal goes to the floor because there is no pressure in the system. Either the brakes need to be bled, there is a leak in the system, or the master cylinder is bad. Check the fluid level and then look at each line and caliper to see any leaks. If no leaks are found and the fluid is at the proper level bleed the brakes starting with the furthest caliper from the master cylinder and work to the closest (passenger rear, driver rear, passenger front, driver front).

Posted on Aug 30, 2010

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Possible leak in brake system. if not then you have a bad master cylinder. have to replace it.

Posted on Aug 30, 2010

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Posted on Jan 02, 2017

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SOURCE: brake pedal goes to floor

there is still air in your hydraulic lines somewhere bleed the system with a pressurised power bleeder and you will get instant results

Posted on May 01, 2009

  • 7 Answers

SOURCE: 2001 Mustang GT rear brake job

yep this is a two man job, onece you get air in the lines is better to do all four, my has abs and i was able to do it, but next time don't take anylines lose just turn the piston clockwise and you should be able to push it in.

Posted on Oct 12, 2008

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SOURCE: Brake pedal goes down to floor. Putting brake fluid doesn't solve problem. Vehicle must coast to a complete stop.

First look for obvious leaks under the vehicle, especially the inside area of each wheel... If you see fluid, you have either a blown cylinder seal or a bad line (check the rubber hoses to the front and back brakes too) Repair the offending part and bleed the air out of the system... (remember to clean pads or shoes if they have fluid on them)... If you see no hint of leakage anywhere, then suspect the master cylinder... if you remove the master cylinder, check and make sure that it didn't leak fluid into the brake booster diaphragm (Brake fluid will destroy the booster)... as in any repair when you open the system (lose fluid), you will need to bleed out the air to restore function... hope this helps...;-)

Posted on May 04, 2009

  • 4 Answers

SOURCE: parking brake pedal goes to floor

The disc brake pads are NOT used for the parking brake. The parking brake uses mini-drum type shoes inside the rear disc rotor.

Take a look at http://wiki.answers.com/Q/How_do_you_change_the_emergency_brake_pads_on_a_2000_Chevy_1500_Silverado_Pickup

For more info

Posted on Jun 21, 2009

litoshop
  • 298 Answers

SOURCE: brake pedal goes down to far abs brakes

Hi I'm litoshop if you bled the system and get no results then your brake pump needs to be replaced now before replacing make sure your pads are installed correctly because if there not this to can cause this problem good luck. if this information has been useful please let us know thank you.

Posted on Aug 11, 2009

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2 Answers

Brake squishy pedal goes to floor


might be a frozen caliper piston or a lot of air in lines

Apr 13, 2014 | 1997 Subaru Legacy

1 Answer

The brake pedal goes right to the floor


Did you try bleeding the brakes? Sounds like air in the line.

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What are the proper steps to bleeding your brakes on a 1990 vw golf deisel


For left hand drive vehicles: (If the car does not have ABS system you do not need any diagnostic equipment!)

IMPORTANT NOTE: You need using diagnostic equipment connected to the data link connector of the car in order to bleed the ABS block. Follow instructions by scantool equipment for bleeding the ABS block.


1. This bleeding procedure requires two people. Remove the brake system reservoir cap, and fill up with new brake fluid until "MAX" level is reached.
2. Lift the car, or use a channel for access under vehicle.
3. Put the gearbox in "N" - Neutral position, or in "P" - Parking position for automatic transmission.
4. Start the engine and push the brake pedal firmly for 4 - 5 times to the floor, and maintain the brake pedal pushed to the floor.
5. Begin with the rear right wheel. Another person remove the dust cap and loose the brake caliper bleeding screw until the brake pedal goes to the floor. At this moment maintain the brake pedal pushed to the floor, engine idling, and tight the brake caliper bleeding screw. Use a plastic hose: one end connected to the brake caliper bleeding screw, and another end inside a recovery bottle for used brake fluid.
6. Repeat steps no.#4 and no.#5 until no air flows through the brake caliper bleeding screw. Tight the brake caliper bleeding screw, and put the dust cap in their place.

IMPORTANT NOTE: All the time check the brake fluid level in the brake system reservoir, and fill up if necessary!

7. Push the brake pedal firmly for 4 - 5 times to the floor, and maintain the brake pedal pushed to the floor, engine idling.
8. Continue with the rear left wheel. Another person remove the dust cap and loose the brake caliper bleeding screw until the brake pedal goes to the floor. At this moment maintain the brake pedal pushed to the floor, engine idling, and tight the brake caliper bleeding screw. Use a plastic hose: one end connected to the brake caliper bleeding screw, and another end inside a recovery bottle for used brake fluid.
9. Repeat steps no.#7 and no.#8 until no air flows through the brake caliper bleeding screw. Tight the brake caliper bleeding screw, and put the dust cap in their place.

IMPORTANT NOTE: All the time check the brake fluid level in the brake system reservoir, and fill up if necessary!

10. Push the brake pedal firmly for 4 - 5 times to the floor, and maintain the brake pedal pushed to the floor, engine idling.
11. Continue with the front right wheel. Another person remove the dust cap and loose the brake caliper bleeding screw until the brake pedal goes to the floor. At this moment maintain the brake pedal pushed to the floor, engine idling, and tight the brake caliper bleeding screw. Use a plastic hose: one end connected to the brake caliper bleeding screw, and another end inside a recovery bottle for used brake fluid.
12. Repeat steps no.#10 and no.#11 until no air flows through the brake caliper bleeding screw. Tight the brake caliper bleeding screw, and put the dust cap in their place.

IMPORTANT NOTE: All the time check the brake fluid level in the brake system reservoir, and fill up if necessary!

13. Push the brake pedal firmly for 4 - 5 times to the floor, and maintain the brake pedal pushed to the floor, engine idling.
14. Continue with the front left wheel. Another person remove the dust cap and loose the brake caliper bleeding screw until the brake pedal goes to the floor. At this moment maintain the brake pedal pushed to the floor, engine idling, and tight the brake caliper bleeding screw. Use a plastic hose: one end connected to the brake caliper bleeding screw, and another end inside a recovery bottle for used brake fluid.
15. Repeat steps no.#13 and no.#14 until no air flows through the brake caliper bleeding screw. Tight the brake caliper bleeding screw, and put the dust cap in their place.
16. Now the brakes are bleeded. Check the brake fluid level in the reservoir. Fill up with new brake fluid until "MAX" level is reached. Put back the brake reservoir cap.
17. Test the car brake system. The brake pedal movement no more than 1/3 of total stroke until the floor, when brake pedal is applied. Maximum admissible is 1/2 of total stroke.

Dec 06, 2010 | Volkswagen Golf Cars & Trucks

1 Answer

Bleeding front brakes and brake pedal still goes to floor board


Must bleed all four brakes to determine if there is air in the lines.

If after bleeding several times, the brake pedal still goes to the floor board, the master cylinder may be determined to be bad.

Aug 12, 2010 | 2002 Buick LeSabre

1 Answer

Brake pedal goes to floor on first depression; then pumps up fine


Try this,apply the emergency before stepping on the brake.
If this helps the pedal,the rear brakes are out of adjustment.

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1 Answer

Brake pedal goes to the floor


check vacumn and\or connections to the vacumn boost cannister.

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2 Answers

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Could be brake booster leaking. When engine is off the brake pedal should be firm and not go to the floor. If the pedal goes to the floor engine off, there may be a master cylinder problem also.

Oct 28, 2009 | 2005 GMC Envoy Xl

1 Answer

Hissing noise pedal goes to the floor


Sounds like a broken brake line. The broken line has emptied your master cylinder leaving you no fluid and that's why the pedal goes to the floor. Very dangerour to drive in this condition, be careful.

Jul 29, 2009 | 1992 Subaru Legacy

1 Answer

Brake pedal will go all the way to the floor


make sure brake fluid is full. then pump brakes for one minuite check the fluid to see if it went down or stayed full. if it went down then check the system for a leak . if it stays full then you will need a new mastercylender . i dont think you have a vacum problem cause this causes a verry stiff brake pedal not one that goes to the floor

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2 Answers

97 ford e350 brake pedal goes to the floor...


are your rear drums set up? why did you bleed the brakes. when only when you installed new pads?

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