Repair Procedure
IMPORTANT:
Do not damage the painted surfaces while using the heat gun.
- Apply heat to the cylinder area using J 25070 .
- Hold the shutter door open with a paper clip or similar item and force air into the cylinder using compressed air and a blow gun attachment.
- While holding the shutter door open inject a small amount of multi-purpose lubricant GM P/N 12346241 or equivalent.
- Work the key into the cylinder several times and wipe any excess lubricant residue from the key.