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
...
Other materials:
Tire and Wheel Balancing (Balancing/Wheel Weights)
Use 3M wheel weights, refer to Adhesives, Fluids, Lubricants, and Sealers
for application.
Surface of the wheel must be clean and dry.
All tire and wheel assemblies are to be checked for static tolerance of
2 grams and not more than 20 grams per plane, using cut-to-length weight produc ...
Camshaft Position Actuator Adjuster Installation
Special Tools
EN-6340 Camshaft Adjuster Locking Tool
EN-6628-A Camshaft Locking Tool
EN-45059 Angle Meter
For equivalent regional tools, refer to Special Tools.
Note: Note the arrows.
Turn the camshaft by the hexagon until the groove on the end of the camshafts
is ...
Bushing and Mating Shaft Inspection
Note: Proper bushing and corresponding mating shaft inspection should
be performed before replacing the bushing, shaft, and in some cases, the component
which houses the bushing. Thoroughly clean and dry the bushing and shaft surfaces
before inspecting for damage.
Any of the followin ...
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