Section 840 (Heating, Ventilation And Air Conditioning)
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. 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
- A/C Compressor Shaft Seal Leak Detection with Dye
- Halogen Leak Detector
- A/C Compressor Shaft Seal Leak Detection with J-39400-A
- Air Conditioning (A/C) System Performance Test
- A/C System Pressure - Zone Classification
- A/C Performance Table
- A/C Performance Table - with Rear A/C
- Air Conditioning - Pressure Zone A
- Air Conditioning Diagnostic - Pressure Zone B
- Air Conditioning Diagnostic - Pressure Zone C
- Air Conditioning Diagnostic - Pressure Zone D
- Heating Performance Diagnostic
- Defrosting Insufficient
- Noise Diagnosis - Auxiliary Blower Motor
- Noise Diagnosis - Blower Motor
- Noise Diagnosis - Air Conditioning System
- Noise Diagnosis - HVAC Module
- Odor Diagnosis
- Repair Instructions
- Odor Correction
- Refrigerant Recovery and Recharging
- Flushing
- Compressor Oil Balancing
- Compressor Replacement (LR4, LM7, and LQ4)
- Compressor Replacement (L18)
- Compressor Clutch Plate/Hub Assembly Replacement
- Compressor Mounting Bracket Replacement
- Sealing Washer Replacement
- O-Ring Replacement
- Discharge Hose Replacement
- Suction Hose Replacement
- Evaporator Tube Replacement
- Air Conditioning (A/C) Refrigerant Filter Installation (C60)
- Air Conditioning (A/C) Refrigerant Filter Installation (C69)
- Air Conditioning (A/C) Refrigerant Filter Replacement (C60)
- Air Conditioning (A/C) Refrigerant Filter Replacement (C69)
- Expansion (Orifice) Tube Replacement
- Compressor Relay Replacement
- Air Conditioning (A/C) Low Pressure Switch Replacement
- Air Conditioning (A/C) Refrigerant Pressure Sensor Replacement
- Condenser Replacement
- Accumulator Replacement
- HVAC Module Assembly Replacement
- Evaporator Core Replacement (Visteon)
- Evaporator Core Replacement (Delphi)
- Heater Hose Replacement - Inlet (Utility L18)
- Heater Hose Replacement - Inlet (Utility LR4, LM7, LQ4)
- Heater Hose Replacement - Inlet (Avalanche/Xlt L18)
- Heater Hose Replacement - Inlet (Avalanche/Xlt LR4, LM7, LQ4)
- Heater Hose Replacement - Outlet (Utility L18)
- Heater Hose Replacement - Outlet (Utility LR4, LM7, LQ4)
- Heater Hose Replacement - Outlet (Avalanche/Xlt L18)
- Heater Hose Replacement - Outlet (Avalanche/Xlt LR4, LM7, LQ4)
- Blower Motor Resistor Replacement
- Blower Motor Replacement (Delphi)
- Blower Motor Replacement (Visteon)
- Blower Motor Impeller Replacement
- Air Distributor Duct Replacement
- Deflector Replacement - Instrument Panel Air - Left
- Deflector Replacement - Instrument Panel Air - Center
- Deflector Replacement - Instrument Panel Air - Right
- Air Outlet Replacement - Rear Floor
- Air Outlet Duct Replacement - Floor, LH
- Air Outlet Duct Replacement - Floor, RH
- Air Temperature Door Replacement - Right (Visteon)
- Air Temperature Door Replacement - Right (Delphi)
- Air Temperature Door Replacement - Left (Visteon)
- Air Temperature Door Replacement - Left (Delphi)
- Defroster Door Replacement (Visteon)
- Defroster Door Replacement (Delphi)
- Mode Door Replacement - Lower (Visteon)
- Mode Door Replacement - Lower (Delphi)
- Mode Door Replacement - Upper (Visteon)
- Mode Door Replacement - Upper (Delphi)
- Recirculation Door Replacement (Visteon)
- Recirculation Door Replacement (Delphi)
- Heater Core Replacement (Visteon)
- Heater Core Replacement (Delphi)
- Heater Pipe Replacement - Auxiliary
- Blower Motor Resistor Replacement - Auxiliary
- Blower Motor Replacement - Auxiliary
- Air Distribution Ducts Replacement - Auxiliary (Upper)
- Air Distribution Ducts Replacement - Auxiliary (Lower)
- Deflector Replacement - Auxiliary Air Conditioning (A/C) Outlet - Headliner
- Heater Core Replacement - Auxiliary (Tahoe/Yukon)
- Heater Core Replacement - Auxiliary (Suburban/Yukon XL)
- Thermal Expansion Valve Replacement - Auxiliary
- HVAC Module Replacement - Auxiliary (Suburban/Yukon XL)
- HVAC Module Replacement - Auxiliary (Tahoe/Yukon)
- Evaporator Core Replacement - Auxiliary (Tahoe/Yukon)
- Evaporator Core Replacement - Auxiliary (Suburban/Yukon XL)
- Evaporator Tube Replacement - Auxiliary
- Heater and Air Conditioning (A/C) Pipe Repair - Auxiliary
- Special Tools and Equipment