Chevrolet Sonic manuals

Chevrolet Sonic Repair Manual: Wheel Alignment Measurement

Chevrolet Sonic Repair Manual / Chassis / Wheels/Tires / Wheels / Wheel Alignment Measurement

Steering and vibration complaints are not always the result of improper alignment. One possible cause is wheel and tire imbalance. Another possibility is tire lead due to worn or improperly manufactured tires. Lead/pull is defined as follows: 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. Lead is the vehicle deviation from a straight path on a level road without pressure on the steering wheel.

Before performing any adjustment affecting wheel alignment, perform the following inspections and adjustments in order to ensure correct alignment readings:

Give consideration to excess loads, such as tool boxes, sample cases, etc. If normally carried in the vehicle, these items should remain in the vehicle during alignment adjustments. Give consideration also to the condition of the equipment being used for the alignment. Follow the equipment manufacturer's instructions.

Satisfactory vehicle operation may occur over a wide range of alignment settings. However, if the setting exceeds the service allowable specifications, correct the alignment to the service preferred specifications. Refer to Wheel Alignment Specifications.

Perform the following steps in order to measure the front and rear alignment angles:

  1. Install the alignment equipment according to the manufacturer's instructions.
  2. Jounce the front and the rear bumpers 3 times prior to checking the wheel alignment.
  3. Measure the alignment angles and record the readings.

    Note:

    • Record the "Before" and "After" alignment measurements.
    • When performing adjustments to vehicles requiring a 4-wheel alignment, set the rear wheel alignment angles first in order to obtain proper front alignment angles.
  4. Adjust alignment angles to vehicle specification, if necessary. Refer to Wheel Alignment Specifications.
Wheel Alignment - Steering Wheel Angle and/or Front Toe Adjustment
Ensure that the steering wheel is set in a straight ahead position. Loosen the tie rod jam nut (1). Adjust the toe to specification by turning the inner tie rod (2). Refer ...

Wheel Drive Shaft Inner Joint Inspection
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Other materials:

Tire Rotation and Required Services Every 12 000 km/ 7,500 mi
Rotate the tires, if recommended for the vehicle, and perform the following services. See Tire Rotation. Check engine oil level and oil life percentage. If needed, change engine oil and filter, and reset oil life system. See Engine Oil  and Engine Oil Life System. Check engine coo ...

Driver or Passenger Seat Adjuster Handle Replacement (4 Way Uplevel)
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Clutch and Differential Housing Assemble
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