Removal and Installation
- Disconnect the battery negative cable. For additional information, refer to BATTERY, MOUNTING AND CABLES .
- Loosen the clamp and separate the air cleaner outlet tube and resonator from the air cleaner.
Courtesy of FORD MOTOR CO.
Hose and Check Valve
The power brake booster check valve:
- 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.
- Disconnect the mass air flow (MAF) sensor electrical connector.
- Lift the air cleaner assembly from the air cleaner tray.
- Remove the screws and position aside the power steering reservoir.
- Disconnect the brake fluid level switch and if equipped, the brake pressure switch.
- Remove and discard the two nuts and position the master cylinder aside.
- Remove the mounting bolts for the degas bottle and position aside.
- If equipped, disconnect the wiring at the pedal travel sensor and solenoid.
- Release the clamp and disconnect the hose.
- Remove the pin, washer, bushing and switch, and disconnect the booster pushrod.
- Remove the nuts and the brake booster.
- To access the retaining nuts, fold back the sound insulation.
- To install, reverse the removal procedure.
- Use new nuts when installing the master cylinder.
NOTE:
Support the master cylinder with a wire tie or mechanics wire.
NOTE:
The booster pushrod must be installed with the pushrod offset pointing downward.