Question about 1992 Toyota Pickup

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No brake power

I have a 92 toyota pickup with the 2.4, 4cyl, 5spd....recently the brake pedal started gettin mushy so i did an overhaul, new fluid, mastercylinder bled everything 3X....still no pressure at the front...i get good bleed pressure at the rear but not at the front.....and the peddle will only depress half way then i open the rear bleeder and pedal continues to travel to the floor???? do i need a new power booster???? cleaned and checked all components except for the lspv and brake booster but now i dont have brakes so i cant check the booster???

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Faulty remanufactured master cylinder. always buy new.... i was trying to nsave some money and it cost me more in the long run

Posted on Dec 04, 2008

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Common brake failure?


You probably just need to bleed the brake fluid. Look up how to bleed brakes. It's good to bleed out all the old brake fluid with new fluid every 5 years of when you get new brakes installed. A shop can go to quickly for you.

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I have a 1994 toyaota T100 4x4 that i've just replaced the metal brake lines on. I've bled the brakes, and have good pedal pressure until I statrt the truck, then it gets mushy again. Any ideas?


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Hello. I am looking at a 1971 coaster, it has not been driven for 12 months. the brake pedal goes flat to the floor with no pressure, the fluid tank is full. has anyone any suggestions where i should...


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Dec 06, 2010 | Toyota Passenger Cars & Trucks

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it sounds like the master cylinder, but I would bleed the lines first, if that doesn't help then I would replace the cylinder. It is not that hard to replace just make sure you drain all the fluid first as it is very corrosive and bled the brakes once the new one it installed. it should not cost more the a couple hundred bucks. Good luck Tim

Sep 25, 2010 | 2006 Toyota RAV4

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Brakes have a mushy to floor response


usually an indicator of either a loss of pressure due to low fluid and/or air in the system (brake fluid leak) or extremely worn rear brakes (if drum brakes in rear). possible causes include master cylinder (internal fluid pressure leak), external fluid leaks (calipers, lines, wheel cylinders), rear drum brakes extremely worn down or severely out of adjustment. normally worn disc brakes may reduce pedal height SOME, but seldom "to floor". but the "mushy" quote combined with the "floor" quote suggests a hydrolic fluid pressure problem.

Sep 13, 2010 | 2005 Ford Taurus

1 Answer

Power steering is weak and pump is whining, also the brakes are a little mushy. Is there a booster pump that affects both of these? Fluids seem fine.


If your power steering is whining you may just be low on power sterring fluid. I would check that first. If that is good your power steering pump may be on its way out.

There is a power brake booster in your system, but that should not affect if your brakes feel "mushy". I would look at the master cylinder, you probably need a new master cylinder they have a tendency to leak fluid past the seals as they age giving your pedal a mushy feeling. I woould also check your brake lines on each wheel to see if one might be leaking, this will give you a mushy feel as well. I doubt that is the case if you aren't loosing fluid however.

Apr 07, 2010 | 1991 Toyota Land Cruiser

3 Answers

Break peddle to the floor no resistence behind it, and not stopping well, no noise.


First of all, don't drive with the brakes this way...
Sounds like you've lost the hydraulic pressure in the brake system.
Check the following:
1. Open the hood and check the brake fluid reservoir to make sure it's full of brake fluid. If not, top it off with the recommend brake fluid.
2. Try the brake pedal again, with the car running in PARK, press a few times and see if the pedal "firms up".
3. If it does, press and hold the brake pedal with the motor still running. Look to see if the pedal slowly sinks to the floor or if it's a bit "mushy" or feels ok.

If the pedal sinks to the floor, you've got a major leak in the brake system. This could be from one of the wheel cylinders, from the disk brake caliper piston, a damage brake hose, brake line, a faulty master cylinder, power brake booster.
The best way to check is a visual inspection. Look around each wheel- look for fluid leaks, for signs of fluid where you park, on the axles, under the hood near the brake fluid reservoir, etc.
If after the fluid is topped off, you get a mushy pedal, I would suggest getting the brakes "bled". Bleeding the brakes simply means getting all the air out of the brake lines. (Air compresses where brake fluid won't- if the pedal is mushy it's got air.)
If you've not done brake work before, I highly recommend taking it to a local mechanic to help you out. You really want to KNOW that your brakes are going to be there when you need them. So if in doubt have a mechanic check it out.

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Mushy powerless brakes . changed pads,rotors,powersteering pump.


Mushy brakes are almost always 1 of 2 things:
  1. Air in the brake line; when brakes where changed they weren't bled; this would cause a soft brake pedal.
  2. Most common reason for a soft pedal is a bad master cylinder. Once they become faulty they fail to provide the pressure required to adequately stop the vehicle.
Either way, have this checked out at a brake shop immediately. A soft brake pedal is not something to be fooled with.

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1 Answer

Hello. i have a 1991 audi 100. brake padel has become mushy but there are no signs of brake fluid leak on the master cylinder or the lines. the brake pads are new. thanks


Just because there isn't an external leak in the brake system doesn't mean there isn't an internal leak in the master cylinder. A mushy pedal is usually an internal leak in the master cylinder or leaking wheel cylinders in the rear brake drums. Check the rear brake wheel cylinders for fluid leaks, if there are none or you do not have rear drum brakes, your best bet is the master cylinder :)

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2 Answers

Idle surges after warm up and when brake pedal is pressed


1990 22re same problem surge when pedal was depressed thought it was booster or check valve still didnt fix it i even put a brand new booster on it just to make sure still no fix it finnally went away on its own for about a month now it does it just sitting at an idle with out the brake pedal depressed traced all vaccum lines no problem there and still have no clue

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