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.
2007 Chevrolet HHR L4-2.2LFACTORY OEM SERVICE PROCEDURE
Computers and Control Systems: Technical Service Bulletins
- Customer Interest
- Electrical - MIL ON/DTC's Set By Various Control Modules
- Electrical - Intermittent MIL/DTC P2138/Reduced Power
- Electrical - No Start/Long Crank/MIL ON/DTC P0442/P0449
- A/T Controls - MIL ON/DTC P1818/Multiple Systems Issues
- Engine Controls - MIL ON/Reduced Power Message/DTC P2135
- A/T - DTC's P0741/P0751/P0752/P0756/P0757/P1811
- Engine Controls - SES Lamp ON/DTC P0442 Set
- Engine, A/T - Shift/Driveability Concerns/MIL ON
- Instruments - Inaccurate Fuel Gauge/DTC P0461 Set
- Engine - Oil Leak From Behind Starter Motor
- Suspension - Front Suspension Noise Concerns
- By Symptom
- Abnormal wear/deterioration
- Customer Interest
- Electrical - MIL ON/DTC's Set By Various Control Modules
- Electrical - Intermittent MIL/DTC P2138/Reduced Power
- Electrical - No Start/Long Crank/MIL ON/DTC P0442/P0449
- A/T Controls - MIL ON/DTC P1818/Multiple Systems Issues
- Engine Controls - MIL ON/Reduced Power Message/DTC P2135
- A/T - DTC's P0741/P0751/P0752/P0756/P0757/P1811
- Engine Controls - SES Lamp ON/DTC P0442 Set
- Engine, A/T - Shift/Driveability Concerns/MIL ON
- Instruments - Inaccurate Fuel Gauge/DTC P0461 Set
- Engine - Oil Leak From Behind Starter Motor
- Suspension - Front Suspension Noise Concerns
- Driveability
- Erratic Operation
- Erratic Shifting
- False instrument warning light/gauges
- Leaks
- Noise
- All Technical Service Bulletins
- Electrical - Aftermarket Interface Devices Causing Issues
- Engine - THIS BULLETIN HAS BEEN CANCELED
- A/T Controls - Snapshot Data With Tech2(R) Information
- Electrical - MIL ON/DTC's Set By Various Control Modules
- Electrical - Intermittent MIL/DTC P2138/Reduced Power
- Electrical - No Start/Long Crank/MIL ON/DTC P0442/P0449
- 08-06-04-046B - END OF INFORMATION NEED
- A/T Controls - MIL ON/DTC P1818/Multiple Systems Issues
- Engine Controls - MIL ON/Reduced Power Message/DTC P2135
- A/T Control - DTC P0756 Diagnostic Tips
- Electrical - Reducing Intermittent Electrical Concerns
- A/T - Diagnostic Information for DTC's P0894/P1870
- A/T - DTC's P0741/P0751/P0752/P0756/P0757/P1811
- Engine Controls - SES Lamp ON/DTC P0442 Set
- Engine, A/T - Shift/Driveability Concerns/MIL ON
- Emissions - OBDII I/M Readiness Testing
- Instruments - Inaccurate Fuel Gauge/DTC P0461 Set
- Engine Controls - MIL Function During I/M Testing
- Engine - Oil Leak From Behind Starter Motor
- Body Controls - BCM Cross Platform Functionality
- Suspension - Front Suspension Noise Concerns
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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