HVAC

All Component Locator

• HVAC Component Views
• HVAC Components

All Description and Operation

• Accumulator Description
• Air Conditioning (A/C) Refrigerant Pressure Sensor Description
• Air Conditioning (A/C) System Description
• Ambient Air Temperature Sensor Description
• Automatic Air Conditioning (A/C) System Description
• Blower Control Module Description
• Blower Motor Description
• Compressor Description
• Condenser Description
• Control Assembly Description
• Dual Zone Air Conditioning (A/C) System Description
• Evaporator Description
• Expansion (Orifice) Tube Description
• Handling Air Conditioning Compressor Oil
• Handling of Refrigerant Lines and Fittings
• Handling Refrigerant R-134a
• Heater Core Description
• High Pressure Relief Valve Description
• HVAC Air Delivery/Temperature Control Circuit Description
• HVAC Blower Controls Circuit Description
• HVAC Compressor Controls Circuit Description
• Inside Air Temperature Sensor Description
• Maintaining Chemical Stability
• O-Ring/Flat Washer Description
• Passenger Compartment Air Filter Description
• Refrigerant R-134a
• Refrigeration System Description
• Relays and Sensors Description
• Sun Load Temperature Sensor Description
• Vacuum Electrical Solenoid Description
• Vacuum Hose Harness Description

All Special Tools and Equipment

• Special Tools

All Visual Identification

• HVAC Connector End Views

Cleaning, Inspection, and Adjustment

• Compressor Leak Testing

Diagnostic Procedures

• Air Recirculation Always On
• Air Recirculation Inoperative
• Air Temperature Control Inoperative
• Air Temperature Control Inoperative - Passenger
• Blower Motor Always On
• Blower Motor Inoperative at Any Speed
• Blower Motor Inoperative in Auto Mode
• Defrost Air Inoperative
• Defrosting Insufficient
• Diagnostic Trouble Code (DTC) Clearing
• Heated Air Inoperative
• Heating Insufficient
• HVAC Air Delivery System Check
• HVAC Blower Controls System Check
• HVAC Compressor Controls System Check
• Instrument Panel Outlets Inoperative
• Noise Diagnosis

Diagnostic Trouble Codes

• DTC 1255 Generic Loss Of Communications
• DTC B0332 Outside Air Temp Sensor Short to Ground
• DTC B0333 Outside Air Temperature Sensor Open
• DTC B0337 Inside Air Temp Sensor Short to GND
• DTC B0338 Inside Air Temperature Sensor Open
• DTC B0348 Sunload Temperature Sensor Open
• DTC B0361 Left Actuator Feedback Short to GND
• DTC B0363 Left Actuator Feedback Open
• DTC B0365 Right Actuator Feedback Short to GND
• DTC B0367 Right Actuator Feedback Open
• DTC B0441 Left Actuator Out of Range
• DTC B0446 Right Actuator Out of Range
• DTC Table

Disassembly, Overhaul, Repair, and Assembly

• Air Conditioning Clutch Coil Installation
• Air Conditioning Clutch Coil Removal
• Clutch Rotor and Bearing Removal
• Clutch Rotor and/or Bearing Install
• Compressor Clutch Plate and Hub Assembly Removal
• Compressor Clutch Plate/Hub Assembly Install
• Compressor Control Switches Install
• Compressor Control Switches Removal
• Compressor Control Valve Assembly Install
• Compressor Control Valve Assembly Removal
• Compressor Pressure Relief Valve Installation
• Compressor Shaft Seal Install
• Compressor Shaft Seal Removal

Electrical/Electronic Schematic Diagrams

• HVAC Air Delivery/Temperature Control Schematics
• HVAC Blower Control Schematics
• HVAC Compressor Control Schematics
• HVAC Schematic Icons
• HVAC Schematic References

General Diagnostic Information

• Blower Delay
• Diagnostic System Check
• Functional Check
• Intermittents and Poor Connections
• Leak Testing
• Odor Diagnosis
• Refrigerant System Checks
• Scan Tool Diagnostics
• Self-Diagnostics
• System Performance Test
• Vacuum Test
• VDOT Air Conditioning (A/C) System Diagnosis

Mechanical Specifications

• Fastener Tightening Specifications

Other Specifications

• GM SPO Group Numbers
• Refrigerant Oil Distribution Specifications
• System Capacities

Removal, Installation, and Replacement

• Air Conditioning (A/C) Refrigerant Pressure Sensor Replacement
• Air Conditioning Accumulator Replacement
• Air Conditioning Compressor Hose Replacement
• Air Conditioning Compressor Replacement
• Air Conditioning Condenser Replacement
• Air Conditioning Evaporator Core Replacement
• Air Conditioning Evaporator Hose Assembly Replacement
• Air Distributor Duct Replacement
• Ambient Temperature Sensor Replacement
• Auxiliary Air Distributor Duct Replacement
• Blower Motor and Fan Replacement
• Blower Motor Control Module Replacement
• Compressor Relay Replacement
• Condenser Tube Replacement
• Control Assembly Replacement
• Defroster Valve Actuator Replacement
• Expansion (Orifice) Tube Replacement
• Heater Core Replacement
• Heater Hoses Replacement
• Heater Inlet Pipe Adapter Replacement
• Heater Inlet Pipe Replacement
• Heater Outlet Pipe Adapter Replacement
• HVAC Module Assembly Replacement
• Inside Air Temperature Sensor Replacement
• Mode Valve Actuator Replacement
• O-Ring Replacement
• Odor Correction
• Passenger Compartment Air Filter Replacement
• Refrigerant Recovery and Recharging
• Service Ports Replacement
• Suction Hose Replacement
• Sun Load Temperature Sensor Replacement
• Temperature Actuator Replacement
• Vacuum Electrical Solenoid Replacement
• Vacuum Tank Replacement