1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
2. Remove the tire and wheel. Refer to Tire and Wheel Removal and Installation .
3. Use the following procedure to locate the leaking areas:

•	Inflate the tire to 275 kPa (40 psi).

•	Dip the tire and wheel into a water bath.

4. Mark the leak areas.
5. Remove the tire from the wheel.
6. Use 80 grit sandpaper to scuff the inside surface at the leak area.
7. Use a general purpose cleaner such as 3M #08984 or equivalent to clean the area.
8. Apply a 1/8-inch thick layer of adhesive sealant GM P/N 1052366 or equivalent to the leak area.
9. Allow 12 hours of drying time.

Caution: 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.

1. Install the tire on the wheel.
2. Pressurize to 275 kPa (40 psi).
3. Inspect for leaks.
4. Adjust the tire pressure in order to meet the specifications. Refer to Tire Inflation Pressure Specifications in Maintenance and Lubrication.
5. Balance the tire and wheel. Refer to Tire and Wheel Balancing in Vibration Diagnosis.
6. Install the tire and wheel. Refer to Tire and Wheel Removal and Installation .
7. Lower the vehicle.