E 250 V10-6.8L VIN S (2005)
Vacuum Brake Booster: Description and Operation
Hose and Check Valve
Hose and Check Valve
The power brake booster check valve:
^
is located on the front of the power brake booster.
^
check valve and grommet can be installed new separately.
^
is positioned between the power brake booster and the power brake booster hose.
^
closes when the engine is turned off.
^
in the closed position, traps engine vacuum in the power brake booster.
^
retains vacuum to provide several power-assisted brake applications with the engine off.
