Question about 2002 Chevrolet Avalanche

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2002 avalanche brake pedal very soft no pressure to front bleeders no fluid movement when pedal is pushed

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  • Chevrolet Master
  • 12,962 Answers

Assuming your fluid level is ok then I would suspect the master cylinder.

Posted on Jul 24, 2017

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

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Posted on Jan 02, 2017

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Anonymous

  • 97 Answers

SOURCE: no brakes

Hi Robert!

When bleeding the fronts and the pedal does not go down all the way, stand on the pedal HARD and see if it won't go down then...

The proper sequence is to bleed fronts FIRST... if you had done this, you probably could have avoided this problem... but no worry, it is just a nuisance!

If you still have a problem after trying this, you might have a master cylinder problem... the seals to the fronts might be leaking, not able to build pressure...

So try this and let me know how it goes, and DON't FORGET: Your rating is my ONLY compensation for helping you!

Thanks!
WildBill

Posted on Jul 08, 2008

Anonymous

  • 58 Answers

SOURCE: no brake line pressure on 1 caliper after replacing caliper

I suspect you may have twisted the hose on re assembly. The other possibility is that the bleed nipple is choked with dirt and rust. Remove it completely and see if the fluid starts to run out. If so replace nipple or clean out.

Cheers John

Posted on Dec 17, 2008

c17hydro

Greg Bernett

  • 2989 Answers

SOURCE: 1996 PLYMOUTH VOYAGER SOFT BRAKE PEDAL AIR IN LINES

I am a hydraulic technician and I can tell you that air is a killer in the hydraulic system.

Start from the rear and work your way forward. I f you are using the two person method, make sure the second person keeps the master cylinder full. If the fluid level dropped anywhere in between pressing and releasing the brakes....you have a lot of air in the system.

Make sure you are tightening the bleed valve when the brake pedal is full pressed.

Remeber...start from the rear brakes first, then do the front.

Posted on Mar 16, 2009

rtpflh

rtpflh

  • 546 Answers

SOURCE: 2002 chevy silverado 4x4, brakes

did you bleed the brakes in the proper order? RR LR RF LF. check rubber lines for deterioration or BULGING when you apply brakes.

Posted on Sep 22, 2009

brandon brooks

  • 101 Answers

SOURCE: brake pedal hits floor with no pressure

if the brake fluid resovoir is full and you havent opened the brake brake system (ie a bleeder screw or removed a brake line) then you probably need a master cylinder. if the brake fluid IS empty then first you must find the leak and repair it before bleeding will do any good.

Posted on Jan 02, 2010

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2 Answers

Put on new front calipers and hoses whenn bleeding i get fluid but no pedal not enough pressure to move piston in caliper


When you are bleeding brakes, the pressure from the pressed brake pedal is pushing the fluid out the bleeder screw. The caliper piston will not move until you close the bleeder valve and press the brake pedal.

Sep 19, 2017 | Cars & Trucks

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How do i build pressure to front brakes after replacing all the brake lines and bleeding them several times.


First off this is really a 2 person job. You need to make sure there are no air bubbles trapped inside the brake lines. Connect a tube to the bleeder valve and submerse the end of that tube under a container of brake fluid.... As you push down on your pedal you should see bubbles coming out of the tube. Keeping pumping on the brake pedal until no more bubbles come out.

https://www.youtube.com/watch?v=lPwM2vn3bT0

Feb 28, 2015 | 2002 GMC Sierra

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1998 Bonneville SSEi brake system cant bleed


this is best way i know is to fill resevoire with fluid open all bleeders up let it start dripping out of them keeping fluid full in resivoire do this until bleeders leaking real good then shut all bleeders put cap on master cylinder crank car check feel of brakes now if pedal still soft then bleed brakes with car not running check again with car running still soft bleed again with car running

Sep 06, 2012 | 1998 Pontiac Bonneville

1 Answer

How to bleed the brakes


This is a two person job. One will push on the brake pedal and the other will open the bleeder screws. Start at the passenger rear. Open the bleeder and push down on the pedal. Close the bleeder and then let up on the pedal. Continue until the air is removed. Remember to check and add more brake fluid as necessary. Continue with the drivers rear, the. The passenger front, and finishing with the drivers front. How did air get into the system?

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Aug 09, 2012 | 2002 Ford Explorer Sport Trac

1 Answer

Brake pedal soft after changing pads and bleeding brakes


You will need to bleed the brake system. I would start with the rear brakes lines and work towards the front.You must have key off engine off when bleeding brakes, apply pressure on brake pedal 10 times and hold. The brake line is now ready to be open. Open and let the stream of fluid come out and close the line tight. Then release brake pedal once bleeder screw is close. This procedure must be repeated twice front and back. After, brakes have been bleed pump the brake pedal before putting in drive.
Note: Don't let the resevoir run low on brake fluid. This will cause air bubbles to accumulate on the brake system. Always top off before opening bleeder screw.

Nov 21, 2011 | 1992 Chevrolet Corsica

2 Answers

I dont know how too bleed my brakes on my 89 omni any tips


You'll need a helper to help push the brake pedal. Start at the right rear, open the bleeder, have your helper push slowly and steadily down on the brake pedal. Close the bleeder. Have your helper take foot off the brake pedal. Repeat this process until either the fluid is clean/clear or there is no more air coming out of the lines. Continue this process at the left rear, then the right front, and finish at the left front. Let me know if you have any questions and I'll do my best to answer them. Thank you for using FixYa.com!

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Nov 07, 2011 | 1989 Dodge Omni

1 Answer

I'm a mid-age woman w/a 94 DeVille that I want to change the brake fluid myself. How do I do that? Thank you!


BRAKE SYSTEM BLEEDING Diagonal Split System MASTER CYLINDER
  1. Refill the master cylinder reservoir.
  2. Push the plunger several times to force fluid into the piston.
  3. Continue pumping the plunger until the fluid is free of the air bubbles.
  4. Plug the outlet ports and install the master cylinder.
COMPLETE SYSTEM
  1. Fill the master cylinder with fresh brake fluid. Check the level often during the procedure.
  2. Starting with the right rear wheel, remove the protective cap from the bleeder, if equipped, and place where it will not be lost. Clean the bleed screw. When bleeding the brakes, keep face away from the brake area. Spewing fluid may cause facial and/or visual damage. Do not allow brake fluid to spill on the vehicle's finish; it will remove the paint.
  3. If the system is empty, the most efficient way to get fluid down to the wheel is to loosen the bleeder about 1?2 - 3?4 turn, place a finger firmly over the bleeder and have a helper pump the brakes slowly until fluid comes out the bleeder. Once fluid is at the bleeder, close it before the pedal is released inside the vehicle. NOTE: If the pedal is pumped rapidly, the fluid will churn and create small air bubbles, which are difficult to remove from the system. These air bubbles will eventually congregate resulting in a spongy pedal.
  4. Once fluid has been pumped to the caliper or wheel cylinder, open the bleed screw again, have the helper press the brake pedal to the floor, lock the bleeder and have the helper slowly release the pedal. Wait 15 seconds and repeat the procedure (including the 15 second wait) until no more air comes out of the bleeder upon application of the brake pedal. Remember to close the bleeder before the pedal is released inside the vehicle each time the bleeder is opened. If not, air will be induced into the system.
  5. If a helper is not available, connect a small hose to the bleeder, place the end in a container of brake fluid and proceed to pump the pedal from inside the vehicle until no more air comes out the bleeder. The hose will prevent air from entering the system.
  6. Repeat the procedure on remaining wheel cylinders in order:
    1. Step 1: Left front
    2. Step 2: Left rear
    3. Step 3: Right front
  7. Hydraulic brake systems must be totally flushed if the fluid becomes contaminated with water, dirt or other corrosive chemicals. To flush, bleed the entire system until all fluid has been replaced with the correct type of new fluid.
  8. Install the bleeder cap(s) on the bleeder to keep dirt out. Always road test the vehicle after brake work of any kind is done.
Teves® Anti-lock Brake System FRONT BRAKES
  1. Turn the ignition switch OFF throughout this procedure.
  2. Using at least 50 lbs. pressure on the brake pedal, depress the pedal at least 25 times; a noticeable change in pedal pressure will be noticed when the accumulator is discharged.
  3. Remove the reservoir cap. Check and/or refill the master cylinder reservoir.
  4. Using the bleeder adapter tool, install it onto the fluid reservoir.
  5. Attach a diaphragm type pressure bleeder to the adapter and charge the bleeder to 20 psi.
  6. Using a transparent vinyl tube, connect it to either front wheel caliper and insert the other end in a beaker 1?2 full of clean brake fluid.
  7. Open the bleeder valve 1?2 - 3?4 turn and purge the caliper until bubble free fluid flows from the hose.
  8. Tighten the bleeder screw and remove the bleeder equipment.
  9. Turn the ignition switch ON and allow the pump to charge the accumulator.
  10. After bleeding, inspect the pedal for sponginess and the brake warning light for unbalanced pressure; if either of the conditions exist, repeat the bleeding procedure.
REAR BRAKES
  1. Turn the ignition switch OFF.
  2. Using at least 50 lbs. pressure on the brake pedal, depress the pedal at least 25 times; a noticeable change in pedal pressure will be noticed when the accumulator is discharged.
  3. Check and/or refill the master cylinder reservoir.
  4. Turn the ignition switch ON and allow the system to charge. NOTE: The pump will turn OFF when the system is charged.
  5. Using a transparent vinyl tube, connect it to a rear wheel bleeder valve and insert the other end in a beaker 1?2 full of clean brake fluid.
  6. Open the bleeder valve 1?2 - 3?4 turn and slightly depress the brake pedal for at least 10 seconds or until air is removed from the brake system. Close the bleeder valve. NOTE: It is a good idea to check the fluid level several times during the bleeding operation. Remember, depressurize the system before checking the reservoir fluid.
  7. Repeat the bleeding procedure for the other rear wheel.
  8. After bleeding, inspect the pedal for sponginess and the brake warning light for unbalanced pressure; if either of the conditions exist, repeat the bleeding procedure.
Bosch® III Anti-lock Brake System
  1. Turn the ignition switch OFF.
  2. Using at least 50 lbs. pressure on the brake pedal, depress the pedal at least 25 times; a noticeable change in pedal pressure will be noticed when the accumulator is discharged.
  3. Check and/or refill the reservoir to the full mark.
  4. Using a transparent vinyl hose, connect it to a pump bleeder screw and insert the other end in a beaker 1?2 full of clean brake fluid.
  5. Loosen the bleeder screw 1?2 - 3?4 turn. Turn the ignition switch ON; the pump should run forcing fluid from the hose. When the fluid becomes bubble-free, turn the ignition switch OFF, tighten the bleeder screw.
  6. Move the transparent vinyl hose to the hydraulic unit bleeder screw. Loosen the bleeder screw 1?2 - 3?4 turn. Turn the ignition switch ON; the pump should run forcing fluid from the hose. When the fluid becomes bubble-free, turn the ignition switch OFF, tighten the bleeder screw.
  7. Disconnect the bleeder hose.
  8. Turn the ignition switch ON and allow the hydraulic unit to charge; the pump should turn OFF after 30 seconds.
Bosch® 2U Anti-lock Brake System
  1. Turn the ignition switch OFF.
  2. Using at least 50 lbs. pressure on the brake pedal, depress the pedal at least 25 times; a noticeable change in pedal pressure will be noticed when the accumulator is discharged.
  3. Check and/or refill the reservoir to the full mark.
  4. Using a transparent vinyl hose, connect it to a pump bleeder screw and insert the other end in a beaker 1?2 full of clean brake fluid.
  5. Loosen the bleeder screw 1?2 - 3?4 turn. Turn the ignition switch ON; the pump should run forcing fluid from the hose. When the fluid becomes bubble-free, turn the ignition switch OFF, tighten the bleeder screw.
  6. Move the transparent vinyl hose to the hydraulic unit bleeder screw. Loosen the bleeder screw 1?2 - 3?4 turn. Turn the ignition switch ON; the pump should run forcing fluid from the hose. When the fluid becomes bubble-free, turn the ignition switch OFF, tighten the bleeder screw.
  7. Disconnect the bleeder hose.
  8. Turn the ignition switch ON and allow the hydraulic unit to charge; the pump should turn OFF after 30 seconds.
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Sep 02, 2010 | 1994 Cadillac DeVille

1 Answer

Took my 93' Toyota, has 193,000 miles replaced the


THE MASTER CYLINDER NEED TO BE BLED FIRST.BEFORE PUTTING ON THE CAR.TO MANUAL BLEED BRAKE SYSTEM.YOU NEED 2 PEOPLE TO DO A BETTER JOB.YOU FIRST BLEED THE LEFT REAR RIGHT REAR LEFT FRONT AND RIGHT FRONT. WHEN YOU BLEED THE BRAKES.HAVE THE HELPER PUMP BRAKES 3 PUMPS.AND HOLD BRAKE PEDAL IN.YOU NEED A CLEAR BLEEDER HOSE IN A CLEAR BOTTLE HALF WITH CLEAN BRAKE FLUID. WITH BLEEDER HOSE ON BLEEDER SCREW AND OTHER END BLEEDER HOSE IN BOTTLE OF BRAKE FLUID.WHILE HELPER PUMP BRAKE PEDAL HOLD IT IN OPEN BLEEDER SCREW 1/4 TURN ALLOWING AIR BUBBLES LEAVE THE BRAKE SYSTEM.CLOSE THE BLEEDER SCREW BEFORE BRAKE PEDAL RELEASE.HAVE HELPER PUMP BRAKE PEDAL 3 TIMES. WITH PEDAL HELD DOWN OPEN BLEEDER SCREW GETTING AIR OUT OF THE SYSTEM.WHEN YOU SEE SOLID FLUID COMING OUT OF BLEEDER HOSE THE AIR IS OUT THE BRAKE SYSTEM.DONT DRIVE CAR ON HIGHWAY IF YOU STILL CANT GET SOLID BRAKES. HAVE CAR TOWED IN TO BE PRESSURE BLEED.

Jun 19, 2010 | 1993 Toyota Corolla

3 Answers

2001 kia sportage soft brake pedel still doing a complete brake job same as before changing the calipers/pads/ shoes /master cylinder /brake cylinders rear/ bleeding comp. system ? ANY HELP .yet the low...


hi from the uk have had this problem on a customers car b4 who had replaced frot calipers and pads and pedal went to floor on inspection of caliper i found that the steel spring clip that fits into two holes in the front face of caliper and must also locate behind the caliper carrierbehind two lugs was fitted incorrectly it had been fitted behind the outer pad resulting in when brake pedal off ?the caliper being floating type as it is known because it is fixed by two screw pins/bolts and moves on these pins/bolts as pads wear ? what happens is the spring fitted wrongly ? actually pushes against the outer pad and as a result the caliper piston is pushed back into its cylinder slightly as it moves on the locating pins/bolts resulting in pedal going to floor on 1st application but if pumped ? some brake pedal force is felt but is lost again when pedal released ? so try this ? remove the steel clips from both front calipers that retain caliper to carriers then press brake/pump pedal ? if as suggested above works? your pedal should pump up and remain ok when you release and still be firm when re applied ? all above is what i found on ford ford but many other models use similar calipers and spring locating recheck how this spring should locate hope this helps ? good luck

Mar 19, 2010 | 2001 Kia Sportage

2 Answers

Bleeding abs brakes


Try using a pressure bleeder. It will force the air out. Works every time.

Nov 08, 2008 | 2001 Ford Mustang

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