Chevrolet Sonic Repair Manual: Lead/Pull Description
At a constant highway speed on a typical straight road, lead/pull is the amount of effort required at the steering wheel to maintain the vehicle's straight path.
Important:
Vehicles will tend to lead/pull in the direction of the road slope as part of normal operation.
Lead/pull is usually caused by the following factors:
- Road slope
- Variability in tire construction
- Wheel alignment (front cross caster and camber)
- Unbalanced steering gear
- Electronic Power Steering (EPS) steering position and torque sensors not calibrated correctly, if equipped.
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 mar ...
Metric Wheel Nuts and Bolts Description
Metric wheel/nuts and bolts are identified in the following way:
The wheel/nut has the word Metric stamped on the face.
The letter M is stamped on the end of the wheel bolt.
The thread sizes ...
Other materials:
Front Bumper Fascia Guide Replacement
Front Bumper Fascia Guide Replacement
Callout
Component Name
Warning: Refer to Eye Protection Warning.
Preliminary Procedure
Remove the front bumper fascia. Refer to Front Bumper Fascia Replacement.
...
Rear Bumper Fascia Outer Guide Replacement (Hatchback)
Rear Bumper Fascia Outer Guide Replacement
Callout
Component Name
Warning: Refer to Eye Protection Warning.
Preliminary Procedure
Remove the rear bumper fascia. Refer to Rear Bumper Fascia Replacement.
...
Hydraulic Brake Component Operation Visual Inspection
Disc Brake
With the tire and wheel assemblies removed and the brake rotors retained
by wheel lug nuts, visually inspect the brake caliper piston dust boot (2)
sealing area to ensure that there are no brake fluid leaks.
If any evidence of a brake fluid leak is p ...
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