Question about 1987 Toyota 4Runner

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I have a 1987 toyota 4 runner that is leaking brake fluid out of a unit that is mounted on the frame by the left rear wheel. can anyone tell me what it is. I thought that maybe it was a anti lock brake system. But i was told that this car dors not have one

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It is more than likely the Proportioning Valve. This will explain it in detail. I do no have enough space here to explain the system in detail. http://auto.howstuffworks.com/auto-parts/brakes/brake-types/master-brake2.htm

Posted on Dec 28, 2010

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Line broke was leaking fluid then stopped leaking . no fluid comes out of abs unit on frame. is there a way to reset the abs unit to get fluid to rear brakes again


Replace the broken line then, you must bleed the entire brake system , each wheel works by itself on these cars, . Put the rearend in the air get the tires off and then find where the lines go into the ABS unit. Bleed fliud there first, then the individual wheel cylinders in the rear. after you bleed the system, check to make sure the brake system is balanced.

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How to bleed brakes on 2002 toyota sienna


Here is the procedure from the service manual. I would add just one thing. Do each wheel in this order

  1. right rear wheel
  2. left rear wheel
  3. right front wheel
  4. left front wheel
BLEEDING

HINT: If any work is done on the brake system or if air in the brake lines is suspected, bleed the air from the system.

NOTICE: Do not let brake fluid remain on a painted surface. Wash it off immediately.


a)FILL BRAKE RESERVOIR WITH BRAKE FLUID Fluid:SAE J1703 or FMVSS No. 116 DOT3

b)BLEED MASTER CYLINDER HINT: If the master cylinder has been disassembled or if the reservoir becomes empty, bleed the air from the master cylinder.

c)Disconnect the brake lines from the master cylinder. SST 09023-00100 Slowly depress the brake pedal and hold it.

Block off the outlet plug with your finger and release the brake pedal.
Repeat (b) and (c) 3 or 4 times.


BLEED BRAKE LINE

1. Connect the vinyl tube to the caliper or wheel cylinder bleeder plug.
2. Depress the brake pedal several times, then loosen the bleeder plug with the pedal held down.
3. At the point when fluid stops coming out, tighten the bleeder plug, then release the brake pedal. Torque: (Bleeder plug) Front brake caliper
: 8.3 Nm (85 kgf-cm, 74 inch lbs.) Rear wheel cylinder: 8.5 Nm (87 kgf-cm, 75 inch lbs.)
4. Repeat (b) and (c) until all the air in the fluid has been bled out.
5. Repeat the above procedure to bleed the air out of the brake line for each wheel.

CHECK FLUID LEVEL IN RESERVOIR Check the fluid level and add fluid if necessary. Fluid: SAE J1703 or FMVSS No. 116 DOT3

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1 Answer

I have a 1987 toyota camry, at times the steering


check the motor mounts/transmission mounts for excessive wear. Open the hood and with the emergency brake on and the rear wheels blocked with bricks (front and back of the rear tires) have a friend stand to the side and a few feet back of the engine. The other person gets in the car, starts it and with your left foot applied constantly to the brake pedal, use the right foot to rev the motor up and down in drive, then in reverse. You are looking for the engine to show movement front to back or side to side excessively. The engine will stay virtually still during this test if the mounts are good but it sounds like on ore more may be bad.

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Put in brake fluid but cannot tell if there is a leak or not


After you put the fluid in the brakes start your blazer keep it in park or in nutral with the parking brake on and then push as hard as you can on the brake peddle using the steering wheel as leverage.This should pop any brake line that is leaking a little bit but not enough to pop any good lines.If the peddle slowly goes to the floor check undernieth the vehicle for any signs of leaking.If no signs of leaking look under the hood where the brake master cylinder is and check for any leaking around the mounting surface.If no leaks there check inside the vehicle where the brake peddle goes threw to the master cylinder for leaks on the inside,this does happen from time to time.

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1987 CAMRY. back brake lines were replaced 9


sound like the wheel cylinder is bad

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Check the electro-hydraulic control unit mounted on the left side frame underneath the cab. Its made up of the brake pressure modulator valve (bpmv) and the electronic brake control module (ebcm). This controls hydraulic pressure to the brake calipers to prevent wheel lock up. Also check the abs sensor mounted on the transfer case.

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1999 toyota fore-runner steering fluid leak.


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Sep 29, 2009 | 1999 Toyota 4Runner

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