Question about 1990 Toyota 4Runner

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Cant get my brake fluid to run threw my back brake line bin bleeding them for 5 hours what can i do

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  • Toyota Master
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Tie up the load sensor valve on the back diff ,also leave a broom handle on the brakes overnight so pedal is down ,this often works even on new motors

Posted on Sep 03, 2010

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Need to know procedure for bleeding master cylinder and lines.


There is a special pump used to bleed the master cylinder first then after the master cylinder is installed you bleed the brakes and fill as you go it's a two-man operation

Mar 03, 2015 | Cars & Trucks

1 Answer

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

1 Answer

Brakes wont bleed


Sounds like you need to change your Master Cylinder . This is the cylinder located below where the brake fluid goes. You stated no pressure and this is a symptom of this cylinder plunger going bad and not pushing fluid threw the lines. Remember to rate my solution

May 01, 2012 | 1995 Mitsubishi Diamante

1 Answer

Have an 89 festiva changed 5 master cylinders and still cant bleed front driver and rear pass wheel and also changed distribution block 3 times. i cant bleed it rite from the front port of the master...


Section 06-06: Hydraulic Brake System 1992 Festiva Workshop Manual GENERAL SERVICE OPERATIONS Manual Bleeding
  1. Read Hydraulic System Bleeding General Information.
  1. Clean all dirt from the master cylinder filler cap.
  1. Fill the master cylinder with the specified brake fluid. During the bleeding operation do not allow the master cylinder to run dry.
  1. If the master cylinder is known or suspected to contain air it must be bled before the wheel cylinders or calipers. To bleed the master cylinder, loosen the front line fitting and have an assistant push the brake pedal slowly through its full travel. While the assistant holds the pedal, tighten the brake line fitting. After the line fitting is tightened, the assistant may release the brake pedal. Repeat this procedure on the rear brake line. Repeat the entire process several times to ensure all air has been removed from the master cylinder.
  1. Remove the bleeder screw cap from the appropriate rear wheel cylinder.
  1. Position a box end wrench on the bleeder fitting.
  1. Attach a rubber hose to the bleeder fitting. The hose has to fit snugly around the bleeder fitting.
  1. Submerge the free end of the hose in a container partially filled with brake fluid.
  1. Loosen the bleeder fitting approximately three quarters of a turn.
  1. Have an assistant push the brake pedal slowly through its full travel and hold it there.
  1. Close the bleeder fitting.
  1. Have the assistant release the brake pedal.
  1. Repeat Steps 9 through 12 until air bubbles cease to appear at the submerged end of the bleeder hose.
  1. When the fluid entering the bottle is completely free of bubbles, tighten the bleeder screw, remove the bleeder hose, and install the bleeder screw cap.
  1. Repeat Steps 5 through 14 at the appropriate diagonal front caliper.
  1. Check the master cylinder fluid level. If necessary fill it to the correct level with the specified brake fluid.
  1. Check pedal feel. If the pedal remains spongy, repeat the bleeding process or, if necessary, refer to Diagnosis and Testing in Section 06-00.

Jan 04, 2011 | 1991 Ford Festiva

1 Answer

Looking for a replacement part for My 1999 Ford F150 XL 4.6 L... With no luck. (I had a faulty front brake line - now after replacing it ..it will not bleed air or fluid) Disconnected the line from the...


YOU NEED A SCAN TOOL TO BLEED BRAKES.THE SCAN TOOL REACTIVATE HYDRALIC BRAKE MOTOR.YOU CAN RAISE VECHICLE WHEELS OFF GROUND SUPPORT SECURE SAFELY. ALLOW DRIVE WHEEL SPIN 5 MILES AN HOUR WHILE VECHICLE OFF GROUND THE WHEEL SENSORS WHILE WHEELS SPINNING WILL ACTIVATE ABS HYDRALIC MOTOR TO BUILD UP BRAKE FLUID PRESSURE.THEN LOWER VECHICLE TO GROUND.MAKE SURE MASTER CYLINDER BRAKE FLUID LEVEL CORRECT THEN BLEED BRAKES IF BRAKE DONT FEEL FIRM OR SOLID DONT DRIVE HAVE VECHICLE TOWED IN.GARAGE WILL HAVE TO USE SCANNER TO BLEED BRAKES.

Nov 17, 2010 | Ford F-150 Cars & Trucks

1 Answer

What does it mean when i cant get pressure at calipers to bleed brake lines?


Usually the master cylinder was allowed to run low of fluid. Pre bleed the m/c. Aftermarket parts stores sell a kit that helps, it has flexible hoses that screw in where brake lines fasten at m/c, and the other ends go into the reservoir. Pump until good flow and no bubbles, then reattach the brake lines and proceed bleeding. DO NOT let m/c run low of fluid, or start over again.

Sep 19, 2010 | 1996 Jeep Grand Cherokee

1 Answer

Having problem bleeding brakes cant find the brake screw to bleed brakes to build pressure in brakes in a 1990 lexus ls400.


The bleeder screw is in the back next to the brake line into the caliper. Start the bleeding at the right rear, farthest from the reservoir. Then move towards the front left. Keep checking the fluid level and make sure you don't let go of the pedal with the screw loose. Get a 6 point box wrench on there , about 8mm, and a piece of hose to run the fluid into an empty can. Check it out, hope this helps.

Aug 29, 2010 | 1990 Lexus LS 400

1 Answer

Bleeding brakes 2000 suburban wsith ab


Why were the brake lines replaced?

Sounds like the mastercylinder may have run dry. You have to bench bleed the master and then DO NOT allow fluid to run low, while bleeding brakes...

if master cylinder runs low on fluid and air gets in, almost impossible to bleed with out releasing the lines and bleed master it self.

Sep 20, 2009 | 2000 Chevrolet Suburban

1 Answer

I have bleed rear breaks.I cant seem to get fluid to rear.The ABS light is on along with the break light.Is it possible that there is a faulty ABS sensor not allowing fluid to be distributed to the rear...


I'm confused, how did U bleed the rear brakes and there's no fluid to them? first of all U need to get fluid to the rear.

  1. Make sure there fluid in the brake reserve
  2. leave the cap off the reserve
  3. crack open the furthest bleeder valve till fluid come out (take it off if U have 2)
  4. if nothing still come out, then U have a clogged brake line
  5. blow back through the line from the brake side (slow till it bubbles back through the reserve
  6. then gravity bleed it, tighten up the the valve
  7. now U can bleed the brakes

May 04, 2009 | Pontiac Grand Am Cars & Trucks

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