Chevrolet Sonic Repair Manual: Lead/Pull Description

Chevrolet Sonic Repair Manual / Chassis / Wheels/Tires / Wheels / 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:

How Does an Airbag Restrain?
In moderate to severe frontal or near frontal collisions, even belted occupants can contact the steering wheel or the instrument panel. In moderate to severe side collisions, even belted occupants can contact the inside of the vehicle. Airbags supplement the protection provided by safety belts ...

Hill Start Assist (HSA)
This vehicle has an HSA feature, which may be useful when the vehicle is stopped on a grade. This feature is designed to prevent the vehicle from rolling, either forward or rearward, during vehicle drive off. After the driver completely stops and holds the vehicle in a complete standstill on a ...

Rear Seat Back Cushion Cover and Pad Replacement (AMA 60% w/Split Back)
Rear Seat Back Cushion Cover and Pad Replacement Callout Component Name Preliminary Procedure Remove the rear seat back cushion. Refer to Rear Seat Back Cushion Removal and Installation Remove the rear seat head restraint ...

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