L - Brake Noise

L1- Pedal Noise
- Run engine at fast idle for 10 seconds or longer.
- Apply brake pedal and listen for noise. Compare results with known good system.
- Was noise present ?
YES - Go to L2.
NO - Vehicle OK.

L2- Push rod Adjustment
- Check power brake booster push rod length. Adjustments
- Is push rod length OK ?
YES - Bleed brake system.
NO - Replace power brake booster and repeat L1. Service and Repair