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:
Automatic Transmission
P (Park): This position locks the front wheels. It is the best position to use
when you start the engine because the vehicle cannot move easily.
Warning
It is dangerous to get out of the vehicle if the shift lever is not fully
in P (Park) with the parking brake firmly set. The vehicle can ro ...
Front Brake Caliper Bracket Replacement
Removal Procedure
Warning: Refer to Brake Dust Warning.
Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
Remove the tire and wheel assembly. Refer to Tire and Wheel Removal
and Installation.
Note:
DO NOT use any ai ...
Piston, Connecting Rod, and Bearing Cleaning and Inspection
Special Tools
EN-470-B Angular Torque Wrench
For equivalent regional tools, refer to Special Tools.
Visual Inspection And Cleaning Procedure
Connecting Rod
Warning: Wear safety glasses when using compressed air in
order to prevent eye injury.
Clean the connecting rod ...
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