What Happens When the Brake Vacuum Pump Fails?

1 Answers
Ricky
07/30/25 12:24am
Here are the symptoms of a failed brake vacuum pump: 1. Poor or no braking performance; 2. Visible oil leakage at the external connections of the vacuum pump; 3. Slow or no return of the brake pedal; 4. Obvious abnormal noise when pressing the brake pedal; 5. Steering deviation or vibration during braking. Additional information: The brake vacuum pump, also known as the brake booster pump, controls the vacuum entering the booster during braking, causing the diaphragm to move. Through a linkage mechanism, the pushrod on the diaphragm assists the driver in pressing and pushing the brake pedal, thereby amplifying the force applied by the driver.
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