Chevrolet Sonic Repair Manual: 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.
Warning: Refer to Brake Dust Warning.
Visually inspect the drum brake upper return spring (1) for the following
conditions:
Excessive corrosion
Excessive stretchin ...
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:
Automatic Transmission Flex Plate Replacement
Automatic Transmission Flex Plate Replacement
Callout
Component Name
Preliminary Procedure
Remove the transmission. Refer to Transmission Replacement.
Special Tools
EN-470-B Angular Torque Wrench
EN-49979 Crankshaf ...
Throttle Body Installation
Install the throttle body (2) and a NEW throttle body
seal ring (1).
Caution: Refer to Fastener Caution.
Install the 4 throttle body bolts (3) and tighten to
8 Y (71 lb in).
...
Special Tools
Illustration
Tool Number/Description
3-0207944
Main Shaft Tapered Bearing Insert Tool
39506289
Universal Adapter, 2.5L HST Engine
69604356
Gear Pullers
...
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