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Posted on Sep 19, 2010
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Bleeding air out of brake line after changing brake pads,we got no air bubbles but still have a spongy or soft brake peddle

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George Dubbs

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  • Posted on Feb 18, 2015
George Dubbs
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My question is..the old if it ain't broke don't mess with it..why mess with the bleeding at all..replacing pads does not require bleeding of the system..only thing needed to be watched is not over flowing resivour when depressing the caliber for replacing the pads..but in any case follow the steps in answer number one and you should be fine..do a road test the ideal may feel soft to you but is working just fine...also you may want to do a booster test..first with the car not running pump the pedal until you get good pedal pressure then start the car the pedal should slowly depress some more but not to the floor the booster is doing its job...good luck..

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  • Master 4,088 Answers
  • Posted on Sep 19, 2010
Anonymous
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Bleed the longest line first, then progressively shorter lines. Make sure you are using the correct technique in bleeding--be sure the master cylinder is always full, then pump the pedal several times in quick succession and hold pressure while your assistant opens the bleeder valve slowly and lets it drain until your foot is to the floor. Hold your foot until the bleeder is again closed, then repeat the process. Don't reuse the expelled fluid. Hope this helps!

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2helpful
1answer

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.
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Is it possible to bleed the hydralic brakes on a 2000 Ford F650 truck without any specialized equipment or tools? A rear brake line failed and caused the lines and hydrovac to have air in them. Also I...

THIS SHOULD BE A PARTS STORE PART, IT'S OVER 5 YEARS FROM PRODUCTION DATE AND AFTER MARKET PARTS SHOULD BE OUT THERE
BLEEDING THE BREAKS IS A TWO PERSON JOB , ONE WILL HAVE TO PUMP UP THE BREAK AND THE OTHER WILL BLEED THE AIR, SHOULD TAKE A 5/16 OR 3/8 WRENCH
0helpful
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Just changed front brake pads and still feels like brakes go to the floor. What is wrong?

check that fluid level is ok, by changing pad and opening calipers you may have lost fluid our of resovoir.

if your discs where not changed or skimmed at the same time you will have ridges, that do not match to the smooth pads, when you drive for a few miles eventually the pads will wear down and form the shape of the discs.

if they continue to be soft, bleed the fluid to make sure there is no air in it, if the brakes are still soft after this you should replace the brake fluid completely if it has not been done for a while as brake fluids absorbes moisture and that makes the brakes feel spongy or soft.


i hope this was useful.
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No brakes I think the booster was going out because my peddle got soft but would still stop me then i changed my brake pads shortly after the brakes completly went out and can now only stop with the...

The problem is not the booster, the job of the booster is to make braking easier. If the booster went out the brakes would be hard to press.
Your soft pedal is likely due to air in the brake lines. Bleed the brakes and go from there.
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2003 rav 4, just replaced front calipers and pads, after bleeding the line,peddle was spongie, bled all four lines, peddle still spongie, do I need the engine running to properly bleed the lines, and since...

I would bleed the rears too especially if the brake fluid reservoir drained empty. Also you may need to drive the vehicle to seat the brake pads. Check and see how the pedal feels initially before you road test to make sure you don't need to pump the brakes in order to stop. if you do then re bleed all four wheels.If you don't have to pump the pedal and it just feels spongy then try going around the block a few times and see if the pedal stiffens up after the pads have seated.
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I have a 1990 GMC Suburban 2500 that has a soft brake pedal which just started happening yesterday. It will stop; however brake pedal goes all the way to the floor. Have added brake fluid with no change....

Because it is the brakes AND it came on suddenly. GET THE WHOLE SYSTEM CHECKED NOW! Have you checked the condition of the brake pads? Heavily worn pads can affect how far the pedal travels before the brakes bite. Is the pedal spongy? There may also be an air bubble in the system so get a good mechanic to check and bleed the brake lines. If these are OK your looking at getting master cylinders and brake servos checked or replaced.
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Put new roders, brake pads, and calipers on 2002 Olds Alero. The brake peddle is really soft and goes almost all the way to the floor....Why is this? Car has 26,000 on it..

groan......master cylinder not brakes and rotors and what not. hopefully you kept all of you old stuff because there was probably nothing wrong with it. also, make sure that you do a realy good job bleading you break = air will cause the pedal to go down to the floor. also if you change the master cylinder, that you try and bleed most of the air out before you install it into your vehicle
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3answers

Brakes are still spongy after changing the pads, one caliper, and master cylinder. bled front brakes.

I just went to Brake Masters this morning and had them replace the Master Cylinder since I was experiencing the pedal very spongy and going to the floor. When they replaced the Master Cylinder and they gave me back the car, the brakes were still spongy and going to the floor. I addressed this to them and they took another look at it, but when I took it for a second time, the brakes were extremely spongy. It was almost like they gave me back my car in worst condition to when I brought it in. Can you help?
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Spongy brakes after bleeding

sometimes if you are not carefull air can get trapped in the brake lines or in the brake booster......

you should get them checked""

"i would be carefull driving"

but if you dont think air got trapped in there.....you should try upgrading those rubber hoses to steel kind.....

hope this helps XD
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