Preparation for Inspection and Adjustment: Notes
Steering and vibration complaints are not always the result of improper wheel alignment. An additional item to be checked is the possibility of tire lead due to worn or improperly manufactured tires. "Lead" is the vehicle deviation from a straight path on a level road without hand pressure on the steering wheel. Refer to TIRE INSPECTION in order to determine if the vehicle has a tire lead problem. Before inspecting front wheel alignment and making any adjustment affecting wheel alignment, perform the following checks, inspections and repair/replacement to ensure correct measurements and adjustments.
- Check all tires for proper inflation pressure. Adjust pressure for any improperly inflated tire(s).
- Check that all tires are of the same type and brand and also they have approximately the same tread wear. Replace all tires with new ones if necessary.
- Check all wheel bearings for damage. Replace damaged bearing(s) with new one(s), see FRONT WHEEL BEARING CHECK .
- Check wheels and tires for deformation. Repair or replace them if necessary, see WHEEL INSPECTION .
- Check that suspension systems are properly installed and free of damage.
- Check suspension components for bends, dents, wear or other damage.
- Place vehicle on level surface in unloaded state.
- Place steering wheel in straight ahead position.
- Push vehicle body to bounce vehicle up and down several times to stabilize front suspension.
- Check that ground clearance on one side is approximately the same as that on the other side.