Toyota 8FDU25:
Brake issues

Hello, I am having brake issues with my 8FDU25. The brake pedal goes all the way down and does not slow the truck down. I have replaced the master cylinder & all springs, cups, and paws. I took apart the wheel cylinders and cleaned them and reinstalled. I adjusted and bled accordingly and still, pedal hits the floor in forward direction. While in reverse, the braking force gets better. If I pump up the brakes, the truck does come to a stop better. But after a few seconds of not using the brakes, it looses the power and hits the floor again. Any help or guidance would be helpful!
  • Posted 15 Apr 2021 04:16
  • Discussion started by Angel_Mendez
  • Illinois, United States
- Thanks!
Showing items 1 - 6 of 6 results.
Multiple times
  • Posted 11 Jun 2021 02:50
  • Reply by Justus
  • Finland
have you adjusted the brake shoes?
  • Posted 10 Jun 2021 22:23
  • Reply by stillworkin
  • New York, United States
Hello! Remember always that air goes up always. i dont know how is it made in your lift truck but if air bleeder is little bit down side, turn it up when u make bleeding, then you get air out of the brake system. some cars have this problem when bleeding brake calibers.
  • Posted 10 Jun 2021 06:01
  • Reply by Justus
  • Finland
Did you bench bleed the master before installing
  • Posted 8 Jun 2021 08:18
  • Reply by Triggs
  • California, United States
Hello, I have since replaced all springs, stop levers, cables, wheel cylinders, master cylinder, reservoir, reservoir line to master cylinder, bled and adjusted shoes to full contact, than no contact - and still no brakes.

When normal operation, brake pedal floats too floor, when parking brake pedal is pressed, braking pressure is increased but than I lose parking brake.

I have replaced all 3 brake lines as well. Still nothing.
  • Posted 8 Jun 2021 01:29
  • Reply by Angel_Mendez
  • Illinois, United States
- Thanks!
Air is getting into the system from somewhere. I'd clean and inspect every connection brake lines, hoses, etc. Clean with brake cleaner. Did you bleed the master cylinder thoroughly?
  • Posted 15 Apr 2021 23:32
  • Reply by Ddoyle
  • Georgia, United States

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