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 MANUALSCHEVROLET2006COBALT SS, 4D SEDAN, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 143 (HEATING, VENTILATION AND AIR CONDITIONING)
2006 Chevrolet Cobalt SS, 4D Sedan, Standard
Section 143 (Heating, Ventilation And Air Conditioning)
2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION Section 143 (Heating, Ventilation And Air Conditioning)
WARNING: This page is about a different car, the 2005 Buick LaCrosse and 2005 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Diagnostic Information and Procedures
- Diagnostic Starting Point - Heating, Ventilation and Air Conditioning
- Leak Testing
- Air Conditioning (A/C) System Performance Test (LY7)
- Air Conditioning (A/C) System Performance Test (L26)
- Air Conditioning (A/C) Diagnostics - Pressure Zone A
- Air Conditioning (A/C) Diagnostics - Pressure Zone B
- Air Conditioning (A/C) Diagnostics - Pressure Zone C
- Air Conditioning (A/C) Diagnostics - Pressure Zone D
- Heating Performance Diagnostic
- Defrosting Insufficient
- Noise Diagnosis - Blower Motor
- Noise Diagnosis - Air Conditioning (A/C) System
- Noise Diagnosis - HVAC Module
- Odor Diagnosis
- Repair Instructions
- Odor Correction
- Refrigerant Recovery and Recharging
- Flushing
- Compressor Oil Balancing
- Compressor Replacement (L26)
- Compressor Replacement (LY7)
- Compressor Clutch Assembly Replacement
- Compressor Pressure Relief Valve Replacement
- Sealing Washer Replacement
- O-Ring Replacement
- A/C Line/Tube Connector Removal/Replacement
- Compressor Hose Assembly Replacement (L26)
- Compressor Hose Assembly Replacement (LY7)
- Evaporator Tube Replacement
- Compressor Relay Replacement
- Service Ports Replacement
- Receiver Dehydrator Replacement
- Thermal Expansion Valve Replacement
- Air Conditioning (A/C) Refrigerant Pressure Sensor Replacement
- Condenser Replacement
- Blower Control Module Replacement
- HVAC Module Assembly Replacement
- Evaporator Core Replacement
- Heater Hoses Replacement (LY7)
- Heater Hose Replacement - Inlet (L26)
- Heater Pipes Replacement
- Heater Hose Replacement - Outlet (L26)
- Heater Pipe Adapter Replacement - Inlet
- Heater Pipe Adapter Replacement - Outlet
- Passenger Compartment Air Filter Replacement
- Blower Motor Replacement
- Air Distributor Duct Replacement
- Air Outlet Replacement - Side Window (Rt)
- Air Outlet Replacement - Side Window (Lt)
- Air Outlet Replacement - Instrument Panel - Left
- Air Outlet Replacement - Instrument Panel - Center
- Air Outlet Replacement - Instrument Panel - Right
- Air Outlet Replacement - Rear Floor
- Air Temperature Door Replacement
- Air Temperature Door Replacement - Right
- Air Temperature Door Replacement - Left
- Mode Valve Assembly Replacement
- Recirculation Door Replacement
- Heater Core Cover Replacement
- Heater Core Replacement
- Special Tools and Equipment
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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.