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:
Battery Charging
Special Tools
EL 50313 Battery Tester
For equivalent regional tools, refer to Special Tools.
Diagnostic Aids
For best results, use an automatic taper-rate battery charger with a
voltage capability of 16 V.
The charging area should be well ventilated.
Do not charge a bat ...
Ignition Coil Removal
Special Tools
EN-6009 Remover and Installer Ignition Module
For equivalent regional tools, refer to Special Tools.
Remove the 2 ignition coil bolts (1).
Install EN-6009 remover and installer (2) and remove the ignition
coil (1).
...
Gear Position Sensor Replacement
Gear Position Sensor Replacement
Callout
Component Name
Preliminary Procedure
Unclip the engine control module (ECM) and bracket from the battery tray.
1
Gear Position Sensor Magnet Bolt
...
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