Lincoln 7L1Z-2005-C Booster Assembly - Brake

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It is recommended that a new or factory rebuilt unit be installed. Disassembly of the power unit requires special tools and is not ordinarily performed by the home mechanic.

In the engine compartment, remove the nuts attaching the master cylinder to the booster and carefully pull the master cylinder, along with the RWAL control module and isolation/dump valve, forward until it clears the mounting studs. Be careful not to bend or kink the brake lines. On 2005 and later Expedition/Navigator models, remove the air filter housing and unbolt and set aside the degas bottle. Disconnect the vacuum hose where it attaches to the power brake booster. Before removing the power brake booster, detach the intake manifold vacuum hose from the booster housing. In the passenger compartment, remove the cotter pin and the brake light switch and disconnect the power brake pushrod from the top of the brake pedal. Remove the nuts attaching the booster to the firewall. Carefully lift the booster unit away from the firewall and out of the engine compartment.