Preliminary Inspection

Verify the customer concern by carrying out a road test on a smooth road. If any vibrations are apparent, Refer to the SYMPTOM CHART: NVH .
To maximize tire performance, inspect for signs of incorrect inflation and uneven wear, which may indicate a need for balancing, rotation or front suspension alignment.
Correct tire pressure and driving techniques have an important influence on tire life. Heavy cornering, excessively rapid acceleration and unnecessary sharp braking increase tire wear.

Correct tire pressure and driving techniques have an important influence on tire life. Heavy cornering, excessively rapid acceleration and unnecessary sharp braking increase tire wear.

tire sizes.
speed rating.
load range.
tire construction type.

The use of any other tire/wheel size, load range or type can seriously affect:

ride.
handling.
speedometer/odometer calibration.
vehicle ground clearance.
tire clearance between the body and chassis.
wheel bearing life.
braking performance.

New wheels need to be installed when the vehicle wheels:

are bent.
are cracked.
are dented.
are heavily corroded.
are leaking.
have elongated wheel hub bolt holes.
have excessive lateral or radial runout.

It is mandatory to use only the tire sizes recommended on the tire label located on the driver door or door pillar attached to the vehicle. Larger or smaller tires can damage the vehicle, affect durability and require changing the speedometer calibration. Make sure wheel size and offsets match those recommended for the tire in use.

Inspect the tires for signs of uneven wear. the following descriptions to identify the type of wear.

Check the tires for:

cuts.
stone bruises.
abrasions.
blisters.
embedded objects.

Check the valve stems for:

cracks.
cuts.

Install a new valve stem when damage is found or anytime a new tire or wheel is installed.

Tread wear indicators are molded into the bottom of the tread grooves. Install a new tire when the indicator bands become less than measurement 2/32 inch.