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 368 (HEATING, VENTILATION AND AIR CONDITIONING)
2006 Chevrolet Cobalt SS, 4D Sedan, Standard
Section 368 (Heating, Ventilation And Air Conditioning)
2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION Section 368 (Heating, Ventilation And Air Conditioning)
WARNING: This page is about a different car, the 2006 Chevrolet Monte Carlo and 2006 Chevrolet Impala. 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 (LZE, LZ4, LZ9)
- Air Conditioning (A/C) System Performance Test (LS4)
- 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 (RPOs LZE, LZ4, LZ9)
- Compressor Replacement (RPO LS4)
- 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
- Air Conditioning Evaporator Thermal Expansion Valve Tube Replacement
- Air Conditioning (A/C) Refrigerant Filter Replacement
- Service Ports Replacement
- Thermal Expansion Valve Replacement
- Air Conditioning (A/C) Refrigerant Pressure Sensor Replacement
- Condenser Replacement
- Air Conditioning (A/C) Evaporator Case Assembly Replacement
- Blower Control Module Replacement
- HVAC Module Assembly Replacement
- Evaporator Core Replacement
- Heater Hose Replacement - Inlet (RPO LS4)
- Inlet Heater Hose Replacement - (RPOs LZE, LZ4, LZ9)
- Outlet Heater Hose Replacement - (RPO LS4)
- Outlet Heater Hose Replacement - (RPOs LZE, LZ4, LZ9)
- Heater Pipes Replacement (RPO LS4)
- Heater Pipes Replacement (RPOs LZE, LZ4, LZ9)
- Passenger Compartment Air Filter Replacement
- Air Inlet Assembly Replacement
- Blower Motor Replacement
- Air Distributor Duct Replacement
- Upper Right Air Outlet Duct Replacement - Instrument Panel (I/P)
- Rear Floor Air Outlet Replacement
- Defroster Air Outlet Duct Replacement
- Air Temperature Door Replacement
- Mode Valve Assembly Replacement
- Heater Core Cover Replacement
- Heater Core Replacement
- Special Tools and Equipment
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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.