SRT-4 L4-2.4L Turbo VIN S (2004)
Both type master cylinders mount to the power brake booster using two nuts. They both have a seal on the rear of the mounting flange to seal vacuum
in the booster.
The master cylinder body is an anodized aluminum casting. It has a machined bore to accept the master cylinder piston and also has threaded ports
with seats for hydraulic brake line connections.
The master cylinder has the brake fluid reservoir mounted on top of it which gravity feeds brake fluid to the master cylinder when it is required. The
reservoir is made of see-through plastic and it houses the brake fluid level switch. A removable brake fluid level switch is mounted in the left side.
OPERATION
When the brake pedal is pressed, the master cylinder primary and secondary pistons apply brake pressure through the proportioning valves (on
non-ABS vehicles) and chassis brake tubes to each brake assembly. The brake fluid reservoir supplies the brake hydraulic system with the necessary
fluid to operate properly.
The non-ABS master cylinder's primary outlet ports supply hydraulic pressure to the right front and left rear brakes while the secondary outlet ports
supply hydraulic pressure to the left front and right rear brakes. ABS equipped master cylinder outlet ports supply hydraulic pressure to the ABS
Integrated Control Unit (ICU) where it is distributed to the individual wheel brakes.
The master cylinder reservoir cap diaphragm is slit to allow atmospheric pressure to equalize on both sides of the diaphragm.