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 Lower Grille Replacement
Front Lower Grille Replacement
Callout
Component Name
Preliminary Procedures
Remove the front bumper fascia assembly. Refer to Front Bumper Fascia
Replacement.
Remove the front bumper fascia energy absorber. Refer to Fron ...
Multi-Axis Acceleration Sensor Module Programming and Setup
Note:
DO NOT program a control module unless directed to by a service procedure
or a service bulletin. If the Multi-axis Acceleration Sensor or Inertia
Sensor Module (IMU) is not properly configured with the correct calibration
software, the Electronic Brake Control Module will ...
Synchronizers Cleaning and Inspection
Note: When servicing the synchronizers, retain them in the order
that they are removed. Mark the parts to ensure the correct position for
inspection and assembly.
Clean all the synchronizer parts in a suitable cleaning
solvent and air dry all the parts.
Inspect the 1 ...
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