2009 Cadillac STS Service and Repair Manual

This factory service and repair manual for the 2009 Cadillac STS is built around the exact engine, trim and model year on your title, covering the 3.6L V6 (LLT), 4.6L V8 (LH2) and supercharged 4.4L V8 with the specifications, wiring diagrams and torque values Cadillac actually published for those powertrains rather than a generic full-size sedan writeup.

Engines covered

• 4.4L V8 (267 cu in) — DOHC, supercharged, gasoline
• 3.6L V6 (217 cu in) — DOHC, naturally aspirated, gasoline
• 4.6L V8 (281 cu in) — DOHC, naturally aspirated, gasoline

Body styles covered

• 4-door sedan

Trims covered

• Base
• Platinum
• V

Known issues on the 2009 STS. Owners have filed 15 complaints for the year.

Whether you're pulling the supercharged 4.4L for a belt job or working through a routine service interval on the base V6, this manual keeps you on the OEM procedure and the correct spec for your specific 2009 STS.