1. Connect the SSTs to the brake pipes as shown in the figure.

2. Bleed the air from the brake system.
3. Measure the fluid pressure of the master cylinder and the rear brake.

Fluid pressure

Power brake unit inspection
Dual proportioning valve replacement (without abs)Mazda 6 Service Manual: Reassembly
Standard values, such as torques and certain adjustments, must be
strictly observed in the reassembly of all parts.
If removed, these parts should be replaced with new ones:
- Oil seals
- Gaskets
- O-rings
- Lockwashers
- Cotter pins
- Nylon nuts
Depen ...
Mazda 6 Service Manual: Underbody Maintenance
Road chemicals and salt used for ice and snow removal and solvents used for dust
control may collect on the underbody. If not removed, they will speed up rusting
and deterioration of such underbody parts as fuel lines, frame, floor pan, and exhaust
system, even though these parts may be coated ...