Chevrolet Sonic manuals

Chevrolet Sonic Repair Manual: Brake System External Leak Inspection

Chevrolet Sonic Repair Manual / Chassis / Brakes / General / Brake System External Leak Inspection

Warning:

Refer to Brake Fluid Irritant Warning.

Caution:

Refer to Brake Fluid Effects on Paint and Electrical Components Caution.

  1. In order to inspect for external brake fluid leaks, first inspect the fluid level in the master cylinder.

    While a slight brake fluid level drop can be considered a normal condition due to brake lining wear, a very low level may indicate a brake fluid leak in the hydraulic system.

  2. If the fluid level is abnormally low, adjust the brake fluid level. Refer to Master Cylinder Reservoir Filling.
  3. Start the engine and allow it to idle.
  4. Apply constant, moderate foot pressure to the brake pedal.

    If the brake pedal gradually falls away while under foot pressure, there may be a brake fluid leak.

  5. Turn the ignition OFF.
  6. Visually inspect the following brake system components for brake fluid leaks, excessive corrosion, and damage. Give particular attention to all brake pipe and flexible hose connections to ensure that there are not any slight brake fluid leaks – even though the brake pedal may feel firm and hold steady:
  • While slight dampness around the master cylinder reservoir can be considered acceptable, brake fluid leaking from any of the brake system components requires immediate attention. If any of these components exhibit signs of brake fluid leakage, repair or replace those components. After the repair or replacement, reinspect the hydraulic brake system to assure proper function.
  • Brake Pressure Modulator Valve Replacement
    Removal Procedure Warning: Refer to Brake Fluid Irritant Warning. Caution: Refer to Brake Fluid Effects on Paint and Electrical Components Caution. Caution: Always ...

    Brake System Warning Light
    The vehicle brake system consists of two hydraulic circuits. If one circuit is not working, the remaining circuit can still work to stop the vehicle. For normal braking performance, both circuits ...

    Other materials:

    Parking Brake Indicator Switch Replacement
    Removal Procedure Remove the front floor console. Refer to Front Floor Console Replacement. Ensure that the park brake lever is in the fully released position. Disconnect the electrical connector from the park brake warning indicator switch. Remove the park ...

    Rear Wheel Speed Sensor Replacement
    Removal Procedure Warning: Refer to Brake Dust Warning. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation. Remove the rear wheel speed sensor ...

    Engine Oil Cooler Replacement
    Removal Procedure Disconnect battery negative cable. Refer to Battery Negative Cable Disconnection and Connection. Drain engine coolant. Refer to Cooling System Draining and Filling Remove the turbocharger oil feed pipe. Refer to Turbocharger Oil Feed Pipe Replacement ...

    © 2014-2020 Copyright www.csmans.com
       
    0.0127