Chevrolet Sonic Repair Manual: Drum Brake Hardware Replacement (J93, J94)

Chevrolet Sonic Repair Manual / Chassis / Brakes / Drum Brakes / Drum Brake 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. Refer to Tire and Wheel Removal and Installation.
Remove the brake drum. Refer to Brake Drum Replacement.

Remove the upper brake shoe return spring (1).

Remove brake shoe adjuster (1).

Remove the brake shoe adjuster actuator lever (1).

Remove the brake shoe hold down spring and cup assemblies (1) by compressing the spring and rotating the assembly 1/4 turn.

Remove the hold down spring and cup assembly pins (1).

Spread the top of the brake shoe assembly (1) and lift the assembly over the wheel hub.
Release the park brake actuator lever from the park brake cable eyelet.

Remove the lower brake shoe return spring (1).
Inspect the drum brake hardware and replace any components, as necessary. Refer to Drum Brake Hardware Inspection.

Installation Procedure

Clean the drum brake backing plate of any dirt and debris.
Apply a light coat of high temperature brake lubricant to the brake drum backing plate shoe contact surfaces.

Install the lower brake shoe return spring (1).

Install the park brake actuator lever to the park brake cable eyelet.
Spread the top of the brake shoe assembly (1) and lift the assembly over the wheel hub.
Position the brake shoe assembly to the drum brake backing plate.

Install the hold down spring and cup assembly pins (1).

Install the brake shoe hold down spring and cup assemblies (1) by compressing the spring and rotating the assembly 1/4 turn.

Install the brake shoe adjuster actuator lever (1).

Install brake shoe adjuster (1).

Install the upper brake shoe return spring (1).
Adjust the drum brakes. Refer to Drum Brake Adjustment.
Install the brake drum. Refer to Brake Drum Replacement.
Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation.

Drum Brake Hardware Inspection

Warning: Refer to Brake Dust Warning. Visually inspect the drum brake upper return spring (1) for the following conditions: Excessive corrosion Excessive stretchin ...

Drum Brake System Description and Operation

System Component Description The drum brake system consists of the following: Drum Brake Shoes Applies mechanical output force, from hydraulic brake wheel cylinders, to frict ...

Other materials:

Radio Reception
Frequency interference and static can occur during normal radio reception if items such as cell phone chargers, vehicle convenience accessories, and external electronic devices are plugged into the accessory power outlet. If there is interference or static, unplug the item from the accessory p ...

Recommended Fuel
Use regular unleaded gasoline with a posted octane rating of 87 or higher. If the octane rating is less than 87, an audible knocking noise may be heard. If this occurs, use a gasoline rated at 87 octane or higher as soon as possible. If heavy knocking is heard when using gasoline with a higher ...

Roof Outer Panel Replacement (4NB)
Removal Procedure Warning: Refer to Approved Equipment for Collision Repair Warning. Disable the SIR system. Refer to SIR Disabling and Enabling. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection. Remove all ...

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