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 G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 54 (HVAC SYSTEM - AUTOMATIC)COMPONENT LOCATORHVAC COMPONENT VIEWS
2008 Chevrolet Chevy Express G3500, Van Passenger Extended
HVAC Component Views
2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION HVAC Component Views
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
| Callout | Component Name |
|---|---|
| 1 | Battery |
| 2 | A/C Low Pressure Sensor |
| 3 | A/C Compressor Clutch |
| 4 | A/C Refrigerant Pressure Switch |
| 5 | Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor |
| Callout | Component Name |
|---|---|
| 1 | Air Temperature Actuator - Right |
| 2 | Recirculation Actuator |
| 3 | Junction Block - Right I/P C4 |
| 4 | G200 |
| 5 | Blower Motor |
| 6 | Air Temperature Sensor - Lower Right (CJ2) |
| 7 | Air Temperature Actuator - Left |
| 8 | Blower Motor Control Module |
| 9 | Air Temperature Sensor - Lower Left (CJ2) |
| 10 | Mode Actuator |
| Callout | Component Name |
|---|---|
| 1 | Turn Signal Multifunction Switch |
| 2 | Inflatable Restraint Steering Wheel Module Coil |
| 3 | Instrument Panel Cluster (IPC) |
| 4 | Tow/Haul Switch |
| 5 | Driver Information Center (DIC) Switch |
| 6 | Ambient Light/Sunload Sensor Assembly (CJ2) or Ambient Light Sensor (CJ3) |
| 7 | HVAC Control Module |
| 8 | Auxiliary Power Outlet - Front 2 |
| 9 | I/P Multifunction Switch Assembly |
| 10 | Auxiliary Power Outlet - Front 1 |
| 11 | Radio |
| 12 | Transfer Case Shift Control Switch |
| 13 | Headlamp and Panel Dimmer Switch |
| Callout | Component Name |
|---|---|
| 1 | Instrument Panel Cluster (IPC) |
| 2 | Driver Information Center (DIC) Switch |
| 3 | Ambient Light/Sunload Sensor Assembly (CJ2) |
| 4 | Speaker - Center |
| 5 | Analog Clock |
| 6 | Radio |
| 7 | Traction Control / Rear Object Detection Switch |
| 8 | HVAC Control Module |
| 9 | I/P Multifunction Switch Assembly |
| 10 | Auxiliary Power Outlet - Front 1 |
| 11 | Noise Compensation Microphone (Y91) |
| 12 | Transfer Case Shift Control Switch |
| 13 | Fuse Block - I/P |
| 14 | Headlamp and Panel Dimmer Switch |
| Callout | Component Name |
|---|---|
| 1 | Sunroof Module (CF5) |
| 2 | Courtesy/Reading Lamps - 2nd Row |
| 3 | Courtesy/Reading Lamps - 3rd Row |
| 4 | Inside Air Temperature Sensor - Rear (CJ2) |
| 5 | Headliner |
| 6 | Inside Air Temperature Sensor - Front (CJ2) |
| 7 | Inside Rearview Mirror (ISRVM) |
| 8 | Outside Moisture Sensor (CE1) |
| Callout | Component Name |
|---|---|
| 1 | Air Temperature Sensor - Upper Auxiliary |
RENDER: 1.0x
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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.