Chevrolet Sonic Repair Manual: Drum Brake Adjustment
Special Tools
CH-21177-A Drum to Brake Shoe Clearance Gauge
For equivalent regional tools, refer to Special Tools.
Warning:
Refer to Brake Dust Warning.
- Ensure the park brake lever is in the fully released position.
- Remove the front floor console cupholder insert.
Note:
Use ONLY HAND TOOLS when loosening or tightening the adjusting
nut.
- Using ONLY HAND TOOLS, loosen the adjusting nut (1) completely to the end
of the front cable threaded rod.
- Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
- Remove the rear tire and wheel assemblies. Refer to Tire and Wheel Removal
and Installation.
- Remove the brake drums. Refer to Brake Drum Replacement.
- Position the CH-21177-A Drum to Brake Shoe Clearance Gauge to the
widest point of the brake drum inside diameter.
- Firmly hand tighten the set screw on the CH-21177-A Drum to Brake
Shoe Clearance Gauge .
- Remove the CH-21177-A Drum to Brake Shoe Clearance Gauge from the
brake drum and position it over the corresponding brake shoe assembly at its
widest point.
- While holding the CH-21177-A Drum to Brake Shoe Clearance Gauge in
position, insert a proper feeler gauge between one side of the CH-21177-A
Drum to Brake Shoe Clearance Gauge , and the corresponding brake shoe lining.
- Rotate the brake shoe adjuster screw until the brake shoe linings contact
the CH-21177-A Drum to Brake Shoe Clearance Gauge and the feeler gauge.
Refer to Drum Brake Component Specifications.
- Repeat the above steps for the opposite brake drum and brake shoe assembly.
- Install the brake drums. Refer to Brake Drum Replacement.
- Adjust the park brake. Refer to Parking Brake Adjustment.
- Install the rear tire and wheel assemblies. Refer to Tire and Wheel Removal
and Installation.
- Lower the vehicle.
- Install the front floor console cupholder insert.
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 ...
Warning: Refer to Brake Dust Warning.
Visually inspect the drum brake upper return spring (1) for the following
conditions:
Excessive corrosion
Excessive stretchin ...
Other materials:
Pairing without Touchscreen
A Bluetooth-enabled cell phone must be paired to the Bluetooth system and then
connected to the vehicle before it can be used. See your cell phone manufacturer's
user guide for Bluetooth functions before pairing the cell phone. If a Bluetooth
phone is not connected, calls will be made usin ...
Front Brake Hose Replacement
Removal Procedure
Warning: Refer to Brake Dust Warning.
Warning: Refer to Brake Fluid Irritant Warning.
Danger: Do not use a service jack to lift this vehicle. Lifting
the vehicle with a jack could cause the vehicle to slip off the jack
and roll; this ...
Input, Reaction, and Output Carrier Assemble (Gen 1)
Input, Reaction, and Output Carrier Assemble
Callout
Component Name
1
3? Reverse and 4?? Clutch Housing Assembly
2
Reaction Carrier Sun Gear Thrust Bearing
3
Reacti ...
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