Chevrolet Sonic Repair Manual: Drum Brake Adjusting Hardware Inspection

Chevrolet Sonic Repair Manual / Chassis / Brakes / Drum Brakes / Drum Brake Adjusting Hardware Inspection

Warning:

Refer to Brake Dust Warning.

Visually inspect the adjuster actuator spring (1) for the following conditions:

Excessive stretching
Excessive bending
Excessive corrosion
Broken
Missing

If any of the conditions listed were found, the adjuster actuator spring requires replacement.

Visually inspect the adjuster actuator lever (2) for the following conditions:

Bent
Broken
The lever engagement surface excessively worn
Excessively bent or broken spring attachment tab
Missing

If any of the conditions listed were found, the adjuster actuator lever requires replacement.

Visually inspect the adjuster assembly (3) for the following conditions:

Bent
Broken
Seized adjuster wheel threads
Excessively worn, damaged, or missing teeth

If any of the conditions listed were found, the adjuster assembly requires replacement.

Brake Drum Surface and Wear Inspection

Special Tools CH-8001 Dial Indicator Set For equivalent regional tools, refer to Special Tools. Warning: Refer to Brake Dust Warning. With the brake drum removed, clean the brake sh ...

Drum Brake Adjusting Hardware Replacement (J93, J94)

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. Re ...

Other materials:

Brake Fluid
The brake/clutch master cylinder reservoir is filled with DOT 3 brake fluid as indicated on the reservoir cap. See Engine Compartment Overview for the location of the reservoir. There are only two reasons why the fluid level in the reservoir might go down: The fluid level goes down b ...

Brake Rotor Assembled Lateral Runout Correction
Note: Brake rotor thickness variation MUST be checked BEFORE checking for assembled lateral runout (LRO). Thickness variation exceeding the maximum acceptable level can cause brake pulsation. Refer to Brake Rotor Thickness Variation Measurement. Brake rotor assembled latera ...

Transmission Rear Mount Replacement
Removal Procedure Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle. Using a suitable jack stand, support the rear of the powertrain. Remove and DISCARD the transmission mount to bracket through fastener (1). Remove the transmiss ...

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