Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2009IMPALA V6-3.9LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTTECHNICAL SERVICE BULLETINS
2009 Chevrolet Impala V6-3.9L
Powertrain Management: Technical Service Bulletins
2009 Chevrolet Impala V6-3.9LSECTION Technical Service Bulletins
- Customer Interest
- By Symptom
- All Technical Service Bulletins
- Electrical - Aftermarket Interface Devices Causing Issues
- Engine Controls - MIL ON With DTC P2135 Set
- Vehicle - Engine And Sub Systems Flushing Info. (CANADA)
- Vehicle - Engine And Sub-Systems Flushing Recommendations
- Engine - THIS BULLETIN HAS BEEN CANCELED
- Fuel System - Fuel Injector Maintenance Cleaning
- Fuel System - GM Fuel System Treatment PLUS(R) Info.
- Cooling System - MIL ON DTC P0480/P0481 (Police Veh)
- A/T Controls - Snapshot Data With Tech2(R) Information
- Engine - Sound Change In 3 or 4 Cylinder Mode
- Electrical - MIL ON/DTC's Set By Various Control Modules
- Electrical - Intermittent MIL/DTC P2138/Reduced Power
- A/T Control - DTC P0756 Diagnostic Tips
- Electrical - Reducing Intermittent Electrical Concerns
- Engine/Fuel System - Oil/Fuel Additive Information
- A/T Controls - Service Fast Learn Adapts Characteristics
- Exhaust System - Sulfur Odor Explanation
- A/T - Key Cannot Be Removed/No Shift From Park
- 09-06-04-027B - END OF INFORMATION NEED
- Body Controls - Unable To Reprogram Body Control Module
- Fuel System - TOP TIER Detergent Gasoline (Canada)
- Fuel - GM's Position On Use Of E 15, 2007 Newer Vehicles
- Body Controls - Body Control Module (BCM) Grounds
- Fuel System - TOP TIER Detergent Gasoline
- Fuel System - TOP TIER Detergent Gasoline Information (Canada)
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.