I have a 1993 Toyota pickup truck and I am having a brake problem. I have replaced the brake pads, calipers, brake booster, lower lines, checked for vaccum, master cylinder and I still do not have brakes.
Hello, do you have brake in the front or in the back or both? Have you bled the
air out of the braking system? You need to think this through instead of
RR--remove and replace. The hydraulic brake are the most reliable system that
the brake shoes or pads could be down to the metal and it would still stop the
vehicle. You lose a brake line or brakes on one wheel, and it will still stop
the vehicle with two wheel cylinder or pads working. The brake system is
diagonal that is; left front/right rear and right front/left rear. Therefore, if
the vehicle loses any one braking system the other will work.
Now, on your Toyota Truck there is load compensator valve hook to the frame
with the two rear wheel line going into this valve. The a lever the attached to
the rear differential. The way it suppose to work is when a load in placed in
the bed of the truck. The load dynamic will position the differential by the
load pushing down on the bed. This causes the load lever arm to change position
and slightly closing the valve; in turn, limits the brake pressure on the rear
I don't know why Toyota Motors installed this load compensator valve. It more
trouble than what it worth. I have removed these load valves, and took it apart,
and plug the valve piston hole with a brass plug. This lets the brake pressure
flow evenly through out the braking system.
Remember, you need to bleed the braking system of air and I mean all the air
bubbles for the braking system could operate appropriately to manufacture
Aug 30, 2011 |
1993 Toyota Pickup