Chevrolet Sonic Repair Manual: Brake Pad Inspection
- Inspect the disc brake pads at regular intervals, or whenever the tire and wheel assemblies are removed from the vehicle.
- If replacement is necessary, always replace disc brake pads in axle sets.
- Inspect both edges of the disc brake pad friction surfaces (3). The highest rate of wear normally occurs at the trailing edge of the disc brake pads.
- Inspect the thickness of the disc brake pads (3) in order to ensure that they have not worn prematurely. The disc brake pad wear should be approximately even per axle set.
- Front brake pads have integral, audible wear sensors (1). When the disc brake pad wear reaches the minimum allowable thickness, the wear sensor contacts the disc brake rotor (2). The wear indicator will then produce an audible, high-pitched warning noise during wheel rotation.
- Replace the disc brake pads when the friction surface (3) is worn to within 2.00 mm (0.079 in) of the mounting plates.
- Verify that any disc brake pad shims that may be required are in place and not damaged or excessively corroded. Replace any missing or damaged shims in order to preserve proper disc brake performance.
- Replace the disc brake pads if any have separated from the mounting plates.
- Inspect the disc brake pads friction surfaces for cracks, fractures, or damage which may cause noise or otherwise impair disc brake performance.
Warning:
Refer to Brake Dust Warning.
Brake Pads
...
Brake Pad and Rotor Burnishing
Warning: Road test a vehicle under safe conditions and while obeying
all traffic laws. Do not attempt any maneuvers that could jeopardize vehicle
control. Failure to adhere to these precautio ...
Other materials:
Additional Storage Features
Cargo Cover (Hatchback)
Warning
An unsecured cargo cover could strike people in a sudden stop or turn, or
in a crash. Store the cargo cover securely or remove it from the vehicle.
The cargo cover can be used to cover items in the rear of the vehicle.
To remove the cargo cover:
1. Remove both ...
Removing the Spare Tire and Tools
The compact spare tire and tools are located in the storage compartment in the
rear of the vehicle. The jack and tools are stored below the spare tire.
1. Extension
2. Jack
3. Wheel Wrench
4. Strap
To access the spare tire and tools:
1. Open the trunk or liftgate. See Trunk (Sedan) o ...
Exhaust Camshaft Replacement
Removal Procedure
Remove the camshaft intake and exhaust sprocket. Refer to Camshaft Intake
and Exhaust Sprocket Replacement.
Remove and DISCARD the camshaft sprocket bolts (2) and the camshaft
position exciter wheels (1).
Allow the both camshaft ...
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