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 MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1738 (HEATING, VENTILATION, AND AIR CONDITIONING)
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6
Section 1738 (Heating, Ventilation, And Air Conditioning)
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Section 1738 (Heating, Ventilation, And Air Conditioning)
WARNING: This page is about a different car, the 2009 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Diagnostic Information and Procedures
- Leak Testing
- Air Conditioning (A/C) System Performance Test (LY7 w/ Heavy Duty Cooling)
- Air Conditioning (A/C) System Performance Test (LY7 w/Standard Cooling)
- Air Conditioning (A/C) System Performance Test (LC3)
- Air Conditioning (A/C) System Performance Test (LH2 w/ Heavy Duty Cooling)
- Air Conditioning (A/C) System Performance Test (LH2 w/ Standard Cooling)
- 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
- Air Conditioning Compressor Oil Diagnosis
- Noise Diagnosis - Air Conditioning (A/C) System
- Noise Diagnosis - HVAC Module
- Odor Diagnosis
- Repair Instructions
- Odor Correction
- Refrigerant Recovery and Recharging
- Flushing
- Air Conditioning Compressor Oil Balancing
- Air Conditioning Compressor Replacement (LY7)
- Air Conditioning Compressor Replacement (LH2)
- O-Ring Replacement
- Air Conditioning Line/Tube Connector Removal/Replacement
- Condenser Tube Replacement
- Discharge Hose Replacement (LY7)
- Discharge Hose Replacement (LH2)
- Suction Hose Replacement (LY7)
- Suction Hose Replacement (LH2)
- Liquid Line Replacement (LY7/LLT)
- Liquid Line Replacement (LH2)
- Compressor Relay Replacement
- Air Conditioning Refrigerant Desiccant Replacement
- Air Conditioning Evaporator Thermal Expansion Valve Replacement
- Air Conditioning (A/C) Refrigerant Pressure Sensor Replacement
- Air Conditioning Condenser Replacement (Heavy Duty Cooling)
- Air Conditioning Condenser Replacement (Standard Cooling)
- HVAC Module Assembly Replacement
- Air Conditioning Evaporator Core Replacement
- Air Conditioning Evaporator and Blower Module Drain Hose Replacement
- Heater Inlet Hose Replacement (LH2)
- Heater Inlet Hose Replacement (LY7)
- Heater Outlet Hose Replacement (LH2)
- Heater Outlet Hose Replacement (LY7)
- Heater Pipes Replacement
- Passenger Compartment Air Filter Housing Replacement
- Passenger Compartment Air Filter Replacement
- Air Inlet Assembly Replacement
- Air Inlet Housing Front Panel Replacement
- Blower Motor Replacement
- Side Window Defogger Outlet Grille Replacement - Left Side
- Side Window Defogger Outlet Grille Replacement - Right Side
- Air Distributor Duct Replacement
- Instrument Panel Air Deflector Replacement
- Instrument Panel Outer Air Outlet Deflector Replacement
- Instrument Panel Outer Air Outlet Upper Duct Replacement - Left Side
- Instrument Panel Outer Air Outlet Upper Duct Replacement - Right Side
- Floor Console Auxiliary Air Outlet Replacement
- Windshield Defroster Duct Replacement
- Defroster Grille Replacement
- Heater Core Replacement
- Description and Operation
- 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.