Sierra 2500 4WD V8-6.0L VIN U (2004): Heating and Air Conditioning

Also for this vehicle: Sierra 2500 4WD V8-6.0L (2008), Sierra 2500 4WD V8-6.6L DSL Turbo (2007), Sierra 2500 4WD V8-6.6L DSL Turbo VIN 2 (2004), Sierra 2500 4WD V8-8.1L VIN G (2006), Sierra 2500 Denali 4WD V8-6.0L (2011).

Diagnostics Maintenance Engine Transmission Brakes Electrical Steering & suspension Heating & A/C Body & interior

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01Relays and Modules Relays and Modules: Sections
02Sensors and Switches Sensors and Switches: Sections
03Maintenance Maintenance: Sections
04Engine, Cooling and Exhaust Engine, Cooling and Exhaust: Sections
05Powertrain Management Powertrain Management: Sections
06Transmission and Drivetrain Transmission and Drivetrain: Sections
07Brakes and Traction Control Brakes and Traction Control: Sections
08Starting and Charging Starting and Charging: Sections
09Power and Ground Distribution Power and Ground Distribution: Sections
10Steering and Suspension Steering and Suspension: Sections
11Heating and Air Conditioning Heating and Air Conditioning: Sections
- Accumulator HVAC › Component Information › Service and Repair2 3
- Air Door, HVAC35 pages
  - Air Door Actuator / Motor, HVAC › Component Information34 pages
    Technical Service Bulletins4 pages
    Customer Interest for Air Door Actuator / Motor: › 06-01-38-003 › Apr › 06 › A/C - Ticking Noise From Instrument Panel/DTC's Set2
    All Technical Service Bulletins for Air Door Actuator / Motor: › 06-01-38-003 › Apr › 06 › A/C - Ticking Noise From Instrument Panel/DTC's Set2
    Diagrams › HVAC System - Automatic2 3 4 5 6 7 8
    Service and Repair › Actuator Recalibration - HVAC2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
  - Air Door Cable, HVAC › Component Information › Service and Repair
- Air Duct › Component Information › Service and Repair › Air Distributor Duct Replacement2 3
- Air Register › Component Information › Service and Repair › Deflector Replacement - Instrument Panel Air - Center2 3
- Ambient Temperature Sensor / Switch HVAC › Component Information › Locations2 3 4
- Blower Motor50 pages
  - Auxiliary Blower Motor › Component Information › Diagrams › Diagram Information and Instructions2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20…49
  - Blower Motor Impeller › Component Information › Service and Repair
- Blower Motor Relay › Component Information › Technical Service Bulletins2 pages
  - Customer Interest for Blower Motor Relay: › 03-01-38-015A › Oct › 08 › A/C - Blower Motor Runs After Vehicle Is Shut OFF
  - All Technical Service Bulletins for Blower Motor Relay: › 03-01-38-015A › Oct › 08 › A/C - Blower Motor Runs After Vehicle Is Shut OFF
- Blower Motor Resistor › Component Information24 pages
  - Technical Service Bulletins18 pages
    Recalls: › 11046 › Apr › 11 › Campaign - HVAC Blower Not Functional Runs Continuously2 3
    Customer Interest: › 05-01-38-012C › Nov › 06 › A/C - Blower Motor Inop. or Works On Low Speed Only2 3
    All Technical Service Bulletins for Blower Motor Resistor:6 pages
    11046 › Apr › 11 › Campaign - HVAC Blower Not Functional Runs Continuously2 3
    05-01-38-012C › Nov › 06 › A/C - Blower Motor Inop. or Works On Low Speed Only2 3
    All Other Service Bulletins for Blower Motor Resistor: › 05-01-38-012C › Nov › 06 › A/C - Blower Motor Inop. or Works On Low Speed Only2 3
    All Other Service Bulletins for Blower Motor Resistor: › 11046 › Apr › 11 › Campaign - HVAC Blower Not Functional Runs Continuously2 3
  - Service and Repair › Blower Motor Resistor Replacement2 3 4 5 6
- Cabin Air Filter › Component Information › Locations2
- Cabin Temperature Sensor / Switch › Component Information › Diagrams2 3 4
- Cabin Ventilation Duct › Component Information › Service and Repair
- Cabin Ventilation Grille › Component Information › Service and Repair
- Compressor HVAC4 pages
  - Compressor Clutch › Component Information › Diagrams › HVAC System - Manual2
  - Compressor Clutch Hub › Component Information › Service and Repair2
- Compressor Clutch Relay › Component Information › Service and Repair
- Condenser HVAC › Component Information › Service and Repair2 3
- Control Assembly, HVAC › Component Information › Technical Service Bulletins › A/C - Control Knob Replacement Availability
- Control Module HVAC › Component Information29 pages
- Coupler HVAC › A/C Coupler O-ring › Component Information › Service and Repair › O-Ring Replacement2 3 4
- Discharge Air Temperature Sensor / Switch, HVAC › Component Information11 pages
- Evaporator Core › Component Information14 pages
  - Technical Service Bulletins6 pages
    Customer Interest for Evaporator Core: › 99-01-39-004C › Jun › 09 › A/C - Musty Odors Emitted From (HVAC) System2 3
    All Technical Service Bulletins for Evaporator Core: › 99-01-39-004C › Jun › 09 › A/C - Musty Odors Emitted From (HVAC) System2 3
  - Service and Repair › Evaporator Core Replacement (Delphi)2 3 4 5 6 7 8
- Expansion Block/Orifice Tube › Component Information › Service and Repair
- Heater Core › Component Information10 pages
  - Technical Service Bulletins › Cooling System, A/C - Aluminum Heater Cores/Radiators2 3
  - Service and Repair › Heater Core Replacement2 3 4 5 6 7
- Heater Hose › Component Information › Service and Repair › Heater Hose Replacement - Inlet2 3 4 5 6 7 8 9
- Hose/Line HVAC › Component Information16 pages
  - Technical Service Bulletins4 pages
    Customer Interest for Hose/Line HVAC: › 06-01-38-002 › Mar › 06 › A/C - Hiss Noise From Instrument Panel2
    All Technical Service Bulletins for Hose/Line HVAC: › 06-01-38-002 › Mar › 06 › A/C - Hiss Noise From Instrument Panel2
  - Service and Repair › Discharge Hose Replacement2 3 4 5 6 7 8 9 10 11 12
- Housing Assembly HVAC › Component Information5 pages
  - Technical Service Bulletins › A/C - HVAC Module External Seal Kit Availability
  - Service and Repair › Heater/Vent Module Replacement2 3 4
- Refrigerant › Component Information5 pages
  - Technical Service Bulletins › A/C - Refrigerant Recovery/Recycling/Equipment2 3
  - Specifications › Capacity Specifications2
- Refrigerant Filter › Component Information9 pages
  - Technical Service Bulletins4 pages
    Customer Interest for Refrigerant Filter: › 03-01-38-019A › Sep › 04 › A/C - Underhood Rattle Noise on Hard Acceleration2
    All Technical Service Bulletins for Refrigerant Filter: › 03-01-38-019A › Sep › 04 › A/C - Underhood Rattle Noise on Hard Acceleration2
  - Service and Repair › Installation2 3 4 5
- Refrigerant Oil › Component Information3 pages
  - Technical Service Bulletins › A/C - New PAG Oil
  - Specifications › Capacity Specifications2
- Refrigerant Pressure Sensor / Switch, HVAC5 pages
  - High Pressure Sensor / Switch, HVAC › Component Information › Locations
  - Low Pressure Sensor / Switch, HVAC › Component Information4 pages
    Technical Service Bulletins › Air Conditioning - Diagnose A/C Low Pressure Switch2
    Diagrams › HVAC System - Manual2
- Relays and Modules - HVAC32 pages
  - Blower Motor Relay › Component Information › Technical Service Bulletins2 pages
    Customer Interest for Blower Motor Relay: › 03-01-38-015A › Oct › 08 › A/C - Blower Motor Runs After Vehicle Is Shut OFF
    All Technical Service Bulletins for Blower Motor Relay: › 03-01-38-015A › Oct › 08 › A/C - Blower Motor Runs After Vehicle Is Shut OFF
  - Compressor Clutch Relay › Component Information › Service and Repair
  - Control Module HVAC › Component Information29 pages
    Technical Service Bulletins15 pages
    Recalls: › 11046 › Apr › 11 › Campaign - HVAC Blower Not Functional Runs Continuously2 3
    Customer Interest: › 06-01-38-003 › Apr › 06 › A/C - Ticking Noise From Instrument Panel/DTC's Set2
    All Technical Service Bulletins for Control Module HVAC:5 pages
    11046 › Apr › 11 › Campaign - HVAC Blower Not Functional Runs Continuously2 3
    06-01-38-003 › Apr › 06 › A/C - Ticking Noise From Instrument Panel/DTC's Set2
    All Other Service Bulletins for Control Module HVAC: › 06-01-38-003 › Apr › 06 › A/C - Ticking Noise From Instrument Panel/DTC's Set2
    All Other Service Bulletins for Control Module HVAC: › 11046 › Apr › 11 › Campaign - HVAC Blower Not Functional Runs Continuously2 3
    Diagrams › HVAC System - Manual2 3 4 5 6 7
    Description and Operation › HVAC System - Manual2
    Service and Repair › HVAC System - Automatic2 3 4 5
- Sensors and Switches - HVAC28 pages
  - Ambient Temperature Sensor / Switch HVAC › Component Information › Locations2 3 4
  - Cabin Temperature Sensor / Switch › Component Information › Diagrams2 3 4
  - Discharge Air Temperature Sensor / Switch, HVAC › Component Information11 pages
    Locations2 3
    Diagrams › Air Temperature Sensor - Upper Left2 3 4
    Service and Repair › Air Temperature Sensor Replacement - Upper Right2 3 4
  - Refrigerant Pressure Sensor / Switch, HVAC5 pages
    High Pressure Sensor / Switch, HVAC › Component Information › Locations
    Low Pressure Sensor / Switch, HVAC › Component Information4 pages
    Technical Service Bulletins › Air Conditioning - Diagnose A/C Low Pressure Switch2
    Diagrams › HVAC System - Manual2
  - Solar Sensor, HVAC › Component Information › Locations2 3 4
- Solar Sensor, HVAC › Component Information › Locations2 3 4
- Wiring Harness HVAC › Component Information › Technical Service Bulletins4 pages
  - Customer Interest for Wiring Harness HVAC: › 04-01-38-008 › Jun › 04 › A/C - Defaults To Defrost Mode/Poor Control2
  - All Technical Service Bulletins for Wiring Harness HVAC: › 04-01-38-008 › Jun › 04 › A/C - Defaults To Defrost Mode/Poor Control2
12Restraint Systems Restraint Systems: Sections
13Accessories and Optional Equipment Accessories and Optional Equipment: Sections
14Body and Frame Body and Frame: Sections
15Cruise Control Cruise Control: Sections
16Instrument Panel, Gauges and Warning Indicators Instrument Panel, Gauges and Warning Indicators: Sections
17Lighting and Horns Lighting and Horns: Sections
18Windows and Glass Windows and Glass: Sections
19Wiper and Washer Systems Wiper and Washer Systems: Sections