Question about 1987 Toyota Pickup

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Brakes spongy just bought and front bakes been replaced,braken line replaced,and master cylinder replaced and has spongy brakes . Don't you have to bleed the master cylinder .

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Just bleed the entire system & the problem will go away

Need two people to do that

Posted on Oct 27, 2012

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Posted on Jan 02, 2017

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SOURCE: replced front brake pads and calipers adjusted

Bleed the master cylinder first. You have to do that before you belled any calipers or wheel cylinder.

Posted on Feb 22, 2009

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SOURCE: 1996 T-100 dash brake light will not go out

The brake fluid level sensor in the master cylinder is stuck in the lower position which completes the circuit to illuminate the light.. Try tapping lightly on the side of the reservoir to loosen it. If that does not help, you will need to replace the level sensor.
Thanks for choosing FixYa for assistance.

Posted on Jan 25, 2009

  • 31 Answers

SOURCE: 94 4runner brake pressure.

did you possibly replace brake lines with standard instead of metric lines.The standard lines will fit but you will not get pressure back

Posted on Jul 20, 2008

cwbtat
  • 52 Answers

SOURCE: brake hydrolic pressure loss.

you still have air in the system,you need to cross bleed the system,RR,LF,LR,RF.if this does not work you might try picking up a hand operated vacum pump to help get all the air out.

Posted on Apr 29, 2009

  • 49 Answers

SOURCE: cant bleed out brakes

It takes time, do you know the sequence to bleed the brakes? Most cars r different. And you have to keep pouring brake fluid, That is a two person job. Make sure all lines r connected to MC and not leaking. After a while if nothing comes out MC could be diffective.

Posted on Jun 06, 2009

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2001 Silverado 2500 HD Why Rear brakes don't work after I installed new hydro-boost power booster, master cylinder, calipers, and pads. I bled master cylinder before installing, and brakes beginn


Hello Patricia,

Have you checked the master brake cylinder reservoir for brake fluid loss?

I don't suspect the master cylinder as you have replaced it... but am more suspect of a leaking brake line or fitting which should have
been discovered when you had the system bled.

The only time I ever had a rear brake problem with a 2500 series Chevrolet was due to seized rear brake caliper guide pins...as your calipers are also new that is not your problem.

If your brake pedal feels spongy and travels to the floor board you have air in the system, a brake fluid leak or a failure in the power steering system, such as a broken hose, broken power steering pump drive belt, or failed pump, would result in a loss of pressure to both the hydro-boost and steering.

Find more information here:

. Hydro Boost Power Assist Systems Operation Diagnosis and Repair

Jul 23, 2017 | 2001 Chevrolet Silverado 2500HD

2 Answers

Toyota 4 runner brake booster noise


if you can see brake fluid around the booster then yes it is most definitely not right, but sometimes these can fail without any fluid noticable, the visible fluid could mean that the brake master cylinder is failing & this will have an adverse affect on the booster power & performance, check your brake master cylinder first as this is a much simpler & easier repair than the brake booster & can be done at home on a flat drive or or street even, a Haynes manual is invaluable for the home mechanic & i recommend you get one as soon as you can as this will help you diagnose the problems with your vehicle before going to a mechanic/garage, if it is the brake booster at fault then i suggest you go to your local scrapper/breakers yard armed with tools & the Haynes/Chilton's Manual (Depending on which side of the pond you are from) & remove the brake booster from a now deceased Toyota 4Runner & remove the brake booster & master cylinder in one should only cost you a few Quid or Bucks & replace the part once your vehicle is back at home, once the parts have been replaced the brake system will need to be bled so that there is no air in the brake lines, this can be easily done with two people at home, Jack up one corner, remove that wheel & then just crack off the bleed nipple of the brake line Putting a bit of clear hose over the nipple to catch the excess brake fluid in a jug etc & have a friend push down slowly on the pedal, when only fluid comes out with no air then the system is bled for that wheel, Check the level in the brake master cylinder & repeat the process for the other 3 corners/wheels Once done your brake pedal should fell firm & Not spongy, If you get a spongy feeling when braking after this then there is still air in the brake lines & the system needs to be bled again, of course if you have done it right then your brakes should feel firm underfoot. Please don't forget to rate me, regards, Paul.

Sep 21, 2012 | Toyota 4Runner Cars & Trucks

1 Answer

My Subaru impreza 97 non turbo has spongy brakes. Bled and changed master cylinder still spongy. It was knocked in the front, only broke headlight, b4 I bought it so don't no if this has anything 2 do...


sound like there is still air in there the knock shouldent have made any difference try bleeding with the engine running and do all 4 corners incase its getting in other areas hope this helps ivan

Sep 21, 2012 | Cars & Trucks

3 Answers

All of a sudden i have spongy brakes on my 92 f 250. changed master cyl and booster. and rubber brake hoses. still spongy and nothing is leaking.brakes went from being good to spongy in one...


Check the rear wheel cylinders? Was anything leaking at the master cylinder? Does it have ABS?
Check the front caliper slides are free. Check the front caliper pistons for leaks as well. This is all assuming you bled the brakes(all 4 wheels) properly after all that replacement! You're getting air from somewhere for sure or if it has ABS, the pump may have a problem.

Apr 30, 2011 | Ford F-250 Cars & Trucks

1 Answer

The front/driver's side of my van is leaking brake fluid very fast.


sounds like a broken brake line or a brake master cylinder problem. the master cylinder has a resevoir ontop were you add brake fluid. Does your brake pedal feel spongy? if so sounds like your master cylinder needs to be replaced.

Mar 15, 2011 | 1999 Plymouth Grand Voyager

1 Answer

1993 f250 diesel. Brakes spongy and front brakes stick and pedal fails to come up. Have replaced the rotors, calipers, pads, shoes, master cylinder, power boost, back wheel cylinders and had the system...


air in system push break down look for bleeder on check valve if not break line loose at check valve retighten . pump break don t fix push pedal loosen another line tighten back check again

Sep 19, 2017 | Ford F-250 Cars & Trucks

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I have a 96 ford explorer xlt 4wd with ABS. When I bought it it had a broken back break line. I replaced the line blead the breaks and the breaks are spongy. I googled the issuse and found out it could be...


Check your parking brake. if it goes down to the floor or does not hold, then your back brakes needs adjusted. bad master cylinders bleed off slowly to the floor while pushing on the brake pedal. If you need assistance on adjusting let me know.
Randy

Nov 09, 2010 | 1996 Ford Explorer

1 Answer

Brake problem spongy brake pedal pedal goes down replaced front pads and master cylinder and wheel cylinder and bleed lines


try bleeding them more,start with the right rear,then left rear,then right front ,then left front, always bleed the brake that is furthest from the master cylinder, sometimes you have to bleed them several times until you get a steady stream of brake fluid.

Jul 29, 2010 | 1995 GMC Suburban

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I replaced a master cylinder on a 2001 taurus and bench bled the master cylinder before putting it on the car. then bled the 2 lines at the master cylinder and i am getting air out of the front line on...


try disconnecting the front line, have someone else then step on the brake pedal and hold it down while you re-install the line. If that doesn't do it, you probably did get a defective master cylinder.

Mar 07, 2010 | 2001 Ford Taurus

3 Answers

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?

May 21, 2009 | 1999 Chevrolet Silverado 1500

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