Brake Booster

WARNING: This page is about a different car, the 2005 Mercury Montego, 2005 Ford Freestyle, and 2005 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.

Inspect the brake booster for the following:

excessive corrosion or damage
vacuum connections for leakage
vacuum hoses for kinks or leakage
brake booster check valve for correct operation

For low or spongy brake pedal concerns:

check and, if necessary, refill the brake master cylinder reservoir.
bleed the brake system and retest the brake pedal feel.

For a slow or incomplete brake pedal return concern:

inspect for binding, damage, correct installation or interference at the brake pedal.
check the brake booster for binding, damage and correct installation.

Changes in the brake pedal feel or travel are indicators that something could be wrong in the brake system. GO to SYMPTOM CHART for abnormal condition diagnosis.