Air Cleaner Assembly Replacement for Cadillac STS 2009

1. Turn the ignition OFF.
2. Remove the air cleaner intake duct. Refer to Air Cleaner Inlet Duct Replacement.
3. Disconnect the mass air flow (MAF) electrical connector.
4. Remove the air cleaner bolts.
5. Remove the air cleaner.

1. Install the air cleaner.

Caution: Refer to Fastener Caution in the Preface section.

2. Install the air cleaner bolts and tighten to 9 N·m (78 lb in).
3. Connect the MAF electrical connector.
4. Install the air cleaner intake duct. Refer to Air Cleaner Inlet Duct Replacement.