F 450 4WD Super Duty V10-6.8L (2009)
Vacuum Brake Booster: Service and Repair
Brake Booster - Vacuum
Removal and Installation
1. Remove the Air Cleaner (ACL) element.
2. Remove the 2 bolts and position the degas bottle/lower ACL housing assembly aside.
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To install, tighten bolts to 15 Nm (133 lb-in).
3. Relieve the vacuum in the brake booster by pressing and releasing the brake pedal a minimum of 5 times with the engine not running.
4. Disconnect the brake fluid level switch.
5. If equipped, disconnect the vapor management valve electrical connector, detach the valve from the bracket and position aside.