Chevrolet Sonic Repair Manual: Tire Dismounting and Mounting
Caution:
Use a tire changing machine in order to dismount tires. Do not use hand tools or tire irons alone in order to remove the tire from the wheel. Damage to the tire beads or the wheel rim could result.
Caution:
Do not scratch or damage the clear coating on aluminum wheels with the tire changing equipment. Scratching the clear coating could cause the aluminum wheel to corrode and the clear coating to peel from the wheel.
- Deflate the tire completely.
- Use the tire changer in order to remove the tire from the wheel.
- Use a wire brush or coarse steel wool in order to remove any rubber, light rust or corrosion from the wheel bead seats.
- Apply GM P/N 12345884 (Canadian P/N 5728223) or equivalent to the tire bead and the wheel rim.
- Use the tire changer in order to install the tire to the wheel.
- Inflate the tire to the proper air pressure.
- Ensure that the locating rings are visible on both sides of the tire in order to verify that the tire bead is fully seated on the wheel.
Caution:
Damage to either the tire bead or the wheel mounting holes can result from the use of improper wheel attachment or tire mounting procedures. It takes up to 70 seconds for all of the air to completely exhaust from a large tire. Failure to follow the proper procedures could cause the tire changer to put enough force on the tire to bend the wheel at the mounting surface. Such damage may result in vibration and/or shimmy, and under severe usage lead to wheel cracking.
Note:
Rim-clamp, sometimes called-European-type tire changers are recommended.
Caution:
When mounting the tires, use an approved tire mounting lubricant. DO NOT use silicon or corrosive base compounds to lubricate the tire bead and the wheel rim. A silicon base compound can cause the tire to slip on the rim. A corrosive type compound can cause tire or rim deterioration.
Warning:
To avoid serious personal injury, do not stand over tire when inflating. The bead may break when the bead snaps over the safety hump. Do not exceed 275 kPa (40 psi) pressure when inflating any tire if beads are not seated. If 275 kPa (40 psi) pressure will not seat the beads, deflate, relubricate the beads and reinflate. Overinflation may cause the bead to break and cause serious personal injury.
Thrust Angles Description
The front wheels aim or steer the vehicle. The rear wheels control tracking.
This tracking action relates to the thrust angle (3). The thrust angle is the path
that the rear wheels take. ...
Tire Dismounting and Mounting (Bead Exercising)
Most effective if done within 5 minutes of lube application.
Tire exercising is required for all tires and should be done prior to balancing
and checking for RFV.
Lack of bead exercising w ...
Other materials:
Trim Height Inspection
Trim Height Measurement
Trim height is a predetermined measurement relating to vehicle ride height.
Incorrect trim heights can cause the vehicle to bottom out over bumps, damage
to the suspension components and symptoms similar to wheel alignment problems.
Check the trim heights wh ...
Crankshaft Balancer Installation
Special Tools
EN-470–B Angular Torque Wrench
EN-956?E Extension
EN-49979 Crankshaft Shock Mount Retainer
For equivalent regional tools, refer to Special Tools.
Note: The crankshaft balancer flange must fit to the hexagon of
the oil pump rotor (2) and to the two ...
Transmission Replacement (With 1.2L or 1.4L Engine)
Removal Procedure
Remove the battery tray. Refer to
Battery Tray Replacement.
Without draining the coolant or removing the hoses,
remove and position aside the radiator surge tank. Refer to
Radiator Surge Tank Replacement.
Remove the transmission range selector lever c ...
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