Chevrolet Sonic Repair Manual: Brake Pedal Travel Measurement and Inspection
Special Tools
CH-28662 Brake Pedal Effort Gauge
For equivalent regional tools, refer to Special Tools.
- With the ignition OFF and the brakes cool, apply the brakes 3–5 times, or until the brake pedal becomes firm, in order to deplete the brake booster power reserve.
- Install the CH-28662 gauge (1), or equivalent, to the brake pedal (3).
- Measure and record the distance (a) from the brake pedal (3) to the rim of the steering wheel (2). Note the points of measurement.
- Apply and maintain a force of 445 N (100 lb) to the brake pedal, as indicated on the CH-28662 gauge (1), or equivalent.
- While maintaining 445 N (100 lb) of force to the brake pedal (3), measure and record the distance (b) from the same point on the brake pedal (3) to the same point on the rim of the steering wheel (2).
- Release the brake pedal (3) and repeat steps 4 and 5 to obtain a second measurement. After obtaining a second measurement, proceed to step 7.
- Average the first and second measurements recorded for the 2 applies of the brakes.
- Subtract the initial unapplied distance (a), from the average applied distance (b)
to obtain the brake pedal travel measurement (c).
Specification
Maximum brake pedal travel – measured with the ignition OFF, brake booster power assist depleted, and the brakes cool.
Brake Pedal Pushrod Inspection
Disconnect the brake pedal pushrod (2) from the brake pedal.
Reposition the pedal pushrod boot (1) toward the front of the vehicle to
expose as much of the pedal pushrodR ...
Parking Brake
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Other materials:
Infotainment
Determine which radio the vehicle has and read the following pages to become
familiar with its features.
Warning
Taking your eyes off the road for extended periods could cause a crash resulting
in injury or death to you or others. Do not give extended attention to infotainment
tasks while dr ...
Front Differential Carrier Cleaning and Inspection
Front Differential Carrier Cleaning and Inspection
Callout
Component Name
Caution: After cleaning the transmission components, allow
to air dry. Do not use cloth or paper towels in order to dry any transmission
compo ...
Front Wheel Drive Shaft Seal Replacement - Torque Converter Housing Side
Front Wheel Drive Shaft Seal Replacement - Torque Converter Housing
Side
Callout
Component Name
1
Front Wheel Drive Shaft Oil Seal Assembly
Special Tools
DT-23129 Universal Seal Remover
DT-47790 Seal Insta ...
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