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:
Securing an Add-On Child Restraint in the Vehicle
Warning
A child can be seriously injured or killed in a crash if the child restraint
is not properly secured in the vehicle. Secure the child restraint properly in the
vehicle using the vehicle safety belt or LATCH system, following the instructions
that came with that child restraint and the ...
Hub/Axle Flange and Wheel Stud Runout Inspection
Special Tools
GE-8001 Dial Indicator Set , or equivalent
Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
Mark the location of the wheels to the wheel studs and mark the specific
vehicle position on each tire and wheel ?ELF, LR, RF, RR.
Remove the tire and w ...
Engine Front Cover and Oil Pump Disassemble
Engine Front Cover Disassemble
Remove the intake camshaft position sensor bolt (1).
Remove the intake camshaft position sensor (2) and the seal ring (3).
Remove the exhaust camshaft position sensor bolt (6).
Remove the exhaust camshaft posi ...
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