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:
Fabric/Carpet/Suede
Start by vacuuming the surface using a soft brush attachment. If a rotating brush
attachment is being used during vacuuming, only use it on the floor carpet. Before
cleaning, gently remove as much of the soil as possible using one of the following
techniques:
Gently blot liquids with a pap ...
Tire and Wheel Balancing (Wheel Pilot Bore Greasing)
Beginning with MY 2011 vehicle, pilot bore grease should be applied.
To enable this, grease must be applied to the pilot bore to prevent the
wheel from seizing onto the hub.
Refer to Adhesives, Fluids, Lubricants, and Sealers for pilot bore lubricant
part number.
Do not use any pene ...
Valve Lifter Installation
Special Tool
EN-845 Suction Device
For equivalent regional tools, refer to Special Tools.
Note: Observe the correct locations.
Note: Coat the sliding surfaces with NEW engine oil.
Install the 16 valve lifter (1), using the EN-845 suction device . ...
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