Power Booster Functional Check
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2008 Suzuki Reno, 2008 Suzuki Forenza, 2007 Suzuki Reno, 2007 Suzuki Forenza, and 2006 Suzuki Reno. However, it is still accessible from the selected car via links, so may be relevant.
- With the engine stopped, eliminate vacuum in the booster by pumping the brake pedal several times.
- Push the pedal down and hold in this position.
- Start the engine.
- The booster is OK if the pedal drops further because of extra force produced.
If the brake pedal does not drop, the vacuum system (vacuum hoses, check valve, etc.) is probably defective and should be checked.
If no defect is revealed by checking the vacuum system, the defect is in the booster itself.