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84 Toyota Van le Problems with the brakes.

Tiny
ED71339
  • MEMBER
  • 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?
Wednesday, October 24th, 2012 AT 3:56 AM

9 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
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
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Wednesday, October 24th, 2012 AT 9:45 AM
Tiny
ED71339
  • MEMBER
  • 5 POSTS
Thanks, I will try pressure bleeding from the bottom up. Any better suggestions?
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Wednesday, October 24th, 2012 AT 3:51 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Is vehicle equipped with load sensing valve?
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Thursday, October 25th, 2012 AT 5:18 PM
Tiny
ED71339
  • MEMBER
  • 5 POSTS
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.
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Saturday, October 27th, 2012 AT 8:46 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
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.
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Sunday, October 28th, 2012 AT 6:37 AM
Tiny
ED71339
  • MEMBER
  • 5 POSTS
Any way of checking the equalizer valve for proper operation?
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Monday, October 29th, 2012 AT 9:36 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
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?
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Tuesday, October 30th, 2012 AT 12:58 PM
Tiny
ED71339
  • MEMBER
  • 5 POSTS
OK I finally got the problem resolved. I pressure bleed the equalizer valve and that fixed the problem. Thanks very much for your assistance.
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Wednesday, October 31st, 2012 AT 9:04 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Glad to know you have fixed the problem.
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Wednesday, October 31st, 2012 AT 9:29 PM

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