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 MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN PASSENGER EXTENDED, 5.0 MREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 914 (HVAC SYSTEM - MANUAL)
2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 M
Section 914 (HVAC System - Manual)
2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 MSECTION Section 914 (HVAC System - Manual)
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2001 GMC Yukon XL, 2001 GMC Yukon, 2001 GMC Sierra, 2001 GMC Cab & Chassis Sierra, and 2001 GMC C3500 HD. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Schematic Wiring Diagrams
- Component Locator
- HVAC Component Views
- Auxiliary Battery Relay
- Top LF of the Engine (4.3L)
- Lower RF of the Engine Components (4.8L/5.3L/6.0L)
- Lower RF of the Radiator Support Components
- Overhead Console (w/Manual HVAC w/Auxiliary Blower)
- Overhead Console (w/Manual HVAC w/Auxiliary A/C)
- Center of the I/P - Manual HVAC Components
- Right Side of the I/P - Manual HVAC Components
- HVAC Case (Manual A/C)
- HVAC Module Components
- HVAC Connector End Views
- A/C Compressor Clutch
- A/C High Pressure Switch
- A/C High Pressure Switch (Diesel)
- A/C Low Pressure Switch (ALL)
- A/C High Pressure Recirculation Switch
- Air Temperature Actuator
- Air Temperature Actuator - Auxiliary
- Air Temperature Actuator - Auxiliary (Manual air Delivery)
- Blower Motor
- Blower Motor Resistor Assembly
- Blower Motor Resistor Assembly - Auxiliary - C1
- Blower Motor Resistor Assembly - Auxiliary - C2
- HVAC Control Module - C1
- HVAC Blower Motor Control Switch - C2 (Part of HVAC Control Module)
- HVAC Control Assembly - Front Auxiliary (w/o Sunroof - w/Heat and A/C)
- HVAC Control Assembly - Front Auxiliary (w/o Sunroof - w/Heat or A/C Only)
- HVAC Control Assembly - Front Auxiliary (w/Sunroof - w/Heat or A/C Only)
- HVAC Control Assembly - Front Auxiliary (w/Sunroof - w/Heat and A/C)
- HVAC Control Assembly - Rear Auxiliary (w/o Sunroof - w/Heat or A/C Only)
- HVAC Control Assembly - Rear Auxiliary (w/o Sunroof - w/Heat and A/C )
- HVAC Control Processor - Auxiliary (w/o Sunroof - w/Heat and A/C)
- Mode Actuator
- Mode Actuator - Auxiliary
- Mode Actuator - Auxiliary (Manual Air Delivery)
- Recirculation Actuator
- HVAC Component Views
- Diagnostic Information and Procedures
- Scan Tool Output Controls
- Scan Tool Data List
- Scan Tool Data Definitions
- Symptoms - HVAC Systems - Manual
- HVAC Compressor Clutch Does Not Engage
- HVAC Compressor Clutch Does Not Disengage
- Blower Motor Always On
- Blower Motor Inoperative
- Blower Motor Malfunction
- Auxiliary Blower Motor Always On (W/Sunroof or Heat Only)
- Auxiliary Blower Motor Always On (W/O Sunroof)
- Auxiliary Blower Motor Inoperative (W/Sunroof or Heat Only)
- Auxiliary Blower Motor Inoperative (W/O Sunroof)
- Auxiliary Blower Motor Malfunction (W/Sunroof or Heat Only)
- Auxiliary Blower Motor Malfunction (W/O Sunroof)
- Too Hot in Vehicle
- Too Cold in Vehicle
- Too Hot in Vehicle - Auxiliary (with Sunroof)
- Too Hot in Vehicle - Auxiliary (w/o Sunroof)
- Too Cold in Vehicle - Auxiliary (with Sunroof)
- Too Cold in Vehicle - Auxiliary (w/o Sunroof)
- Air Delivery Improper
- Air Delivery Improper - Auxiliary (W/O Sunroof)
- Air Delivery Improper - Auxiliary (W/Sunroof)
- Air Recirculation Malfunction
- Repair Instructions
- Heater and Air Conditioning Control Replacement (Heat Only)
- Heater and Air Conditioning Control Replacement (Heat and A/C)
- Temperature Control Cable Replacement
- Mode Control Cable Replacement
- Temperature Valve Actuator Replacement
- Mode Valve Actuator Replacement (W/O D07)
- Mode Valve Actuator Replacement (W/D07)
- Air Inlet Valve Actuator Replacement
- Auxiliary Heater and Air Conditioning Control Replacement - Front (Front Overhead Control A/C Only)
- Auxiliary Heater and Air Conditioning Control Replacement - Front (Front Overhead Control Heat and A/C)
- Auxiliary Heater and Air Conditioning Control Replacement - Rear
- Auxiliary HVAC Control Processor Replacement
- Auxiliary Blower Switch Replacement
- Auxiliary Temperature Valve Actuator Replacement
- Auxiliary Mode Valve Actuator Replacement (Tahoe/Yukon)
- Auxiliary Mode Valve Actuator Replacement (Suburban/Yukon XL)
- Description and Operation
- Special Tools and Equipment
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
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.