Mechanics

TOYOTA VAN BRAKES PROBLEM

1984 Toyota Van • 200,000 miles


84 toyota van le Problems with the brakes, changed ft pads, rear shoes, master cylinder, still need to pump the brakes, always had this problem. Can you help me?











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Ed71339
October 24, 2012.



Re bleed the system. You may need to have it pressure bled to rid the air. Then you can see if you resolved the issue

Roy

ASEMaster6371
Oct 24, 2012.
Thanks, I will try pressure bleeding from the bottom up. Any better suggestions?

Tiny
Ed71339
Oct 24, 2012.
Is vehicle equipped with load sensing valve?

KHLow2008
Oct 25, 2012.
This 84 Toyota van LE does not have load sensing valve but it does have a equalizer valve for the front pads and for the rear drums.

Tiny
Ed71339
Oct 27, 2012.
A faulty equalizer valve can cause low pedal.

Check the rear brake shoes installation. Shoes have to be installed in the correct direction. Reversed installing of leading and trailing shoes can result in low pedal as well.

A vehicle this age could have the master cylinder replaced more than once and if a mistake made previously with an undersized master cylinder you would be never be able to solve the problem with a replacement sized as per the one on vehicle.

KHLow2008
Oct 28, 2012.
Any way of checking the equalizer valve for proper operation?

Tiny
Ed71339
Oct 29, 2012.
Except for a pressure test, there is no other way.

Try this. Pull the e-brake and pump the brake pedal a few times. Wait a few seconds and test the pedal height again. If it improves, the rear brakes needs to be checked. Did you adjust the brake shoe to drum clearance?

KHLow2008
Oct 30, 2012.
OK I finally got the problem resolved. I pressure bleed the equalizer valve and that fixed the problem. Thanks very much for your assistance.

Tiny
Ed71339
Oct 31, 2012.
Glad to know you have fixed the problem.

KHLow2008
Oct 31, 2012.