Park Avenue V6-3.8L VIN K (1995)
Brake Proportioning/Combination Valve: Description and Operation
Metering Valve
Fig. 6 Metering Valve. Initial Braking
Fig. 7 Metering Valve. Continued Braking
DESCRIPTION
When the brakes are not applied, the metering valve permits the brake fluid to flow through the valve, thus allowing the fluid to expand and contract
with temperature changes.
OPERATION
When the brakes are initially applied, the metering valve stem moves to the left, preventing fluid to flow through the valve to the front disc brakes.
This is accomplished by the smooth end of the metering valve stem contacting the metering valve seal lip at 4 to 30 psi, Fig. 6. The metering valve
spring holds the retainer against the seal until a predetermined pressure is produced at the valve inlet port which overcomes the spring pressure and
