Chevrolet Sonic Repair Manual: Rear Brake Cylinder Overhaul
- Disassembly Procedure
-
- Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
- Remove the rear brake cylinder. Refer to Rear Brake Cylinder Replacement.
- Remove and discard the brake cylinder dust seals (1).
- Remove the brake cylinder pistons (1) and spring (2).
- Remove and discard the brake cylinder piston seals.
- Inspect the brake cylinder bore for excessive corrosion, scoring, nicks, and pitting.
- If the brake cylinder bore exhibits the above conditions, the brake cylinder assembly requires replacement.
- Remove light corrosion in the cylinder bore with a fine crocus cloth.
- Thoroughly clean the brake cylinder and pistons with denatured alcohol and dry with filtered, non-lubricated compressed air.
Warning:
Refer to Brake Dust Warning.
Warning:
Refer to Brake Fluid Irritant Warning.
- Assembly Procedure
-
- Lightly lubricate the new piston seals and brake cylinder bore with GM approved brake fluid from a clean, sealed, brake fluid container.
- Assemble the new piston seals with the lip of the seals facing inward to the brake cylinder pistons.
- Install the brake cylinder pistons (1) and spring (2) into the brake cylinder bore.
- Install the new brake cylinder dust seals (1).
- Install the rear brake cylinder. Refer to Rear Brake Cylinder Replacement.
- Bleed the hydraulic brake system. Refer to Hydraulic Brake System Bleeding.
Note:
Do not lubricate the brake cylinder dust seals.
Rear Brake Backing Plate 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 ...
Rear Brake Cylinder Replacement
Removal Procedure
Warning: Refer to Brake Dust Warning.
Warning: Refer to Brake Fluid Irritant Warning.
Raise and support the vehicle. Refer to Lifting and Jacki ...
Other materials:
Windows
Manual Windows
If equipped, use the window crank to open and close each window.
See Manual Windows.
Power Windows
If equipped, press the switch down to open the window. Pull the front of the
switch up to close it.
The switches work when the vehicle is in ON/RUN or ACC/ ACCESSORY, or when Re ...
Charging System Light
This light will come on briefly when the ignition is turned on, and the engine
is not running, as a check to show it is working.
It should go out when the engine is started. If it stays on, or comes on while
driving, there may be a problem with the electrical charging system. Have it checked ...
Clutch Pedal Position Sensor Replacement
Removal Procedure
Remove the instrument panel lower trim pad cover.
Refer to Instrument Panel Lower Trim Pad Cover Replacement.
Remove the clutch pedal position sensor bolt (2).
Remove the clutch pedal position sensor (1).
Disconnect the clu ...
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