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 MANUALSGMC2011SAVANA SPECIAL 4.8 AREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 165 (HVAC SYSTEM - MANUAL)
2011 GMC Savana Special 4.8 A
Section 165 (HVAC System - Manual)
2011 GMC Savana Special 4.8 ASECTION Section 165 (HVAC System - Manual)
WARNING: This page is about a different car, the 2011 GMC Savana and 2011 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Wiring Schematics
- HVAC Vacuum Schematics
- HVAC Wiring Schematics
- Primary Blower and Air Delivery Controls (C42) And Vacuum Pump (Diesel)
- Compressor Controls (C60)
- Rear HVAC (C69) with Rear Auxiliary Controls - Front Controls
- Rear HVAC (C69) with Rear Auxiliary Controls - Rear Controls
- Rear HVAC (C69) with Rear Auxiliary Controls - Air Delivery Controls
- Rear HVAC (C69) without Rear Auxiliary Controls - Front Controls
- Rear HVAC (C69) without Rear Auxiliary Controls - Air Delivery Controls
- Rear HVAC (C36 without C69)
- Coolant Heater (K08)
- Diagnostic Information and Procedures
- Diagnostic Code Index
- DTC B0440, B0441, or B0442
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC B0445, B0446, or B0447
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC B0449, B0450, B0451, or B0452
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC B0455 or B0457
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC B0460 or B0462
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC B0465, B0467, or B0478
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC B0481, B0482, or B0483
- DTC B0484, B0485, B0486, B0488, or B048A
- DTC P0532 or P0533
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Diagnostic Aids
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC P0645, P0646, or P0647
- Diagnostic Instructions
- DTC Descriptor
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Component Testing
- Repair Instructions
- Symptoms - HVAC Systems - Manual
- Air Conditioning Compressor Malfunction
- Blower Motor Malfunction
- Auxiliary Blower Motor Malfunction (RPO C36)
- Auxiliary Blower Motor Malfunction (RPO C69 w/o Rear Controls)
- Auxiliary Blower Motor Malfunction (RPO C69 with Rear Controls)
- Air Temperature Malfunction
- Auxiliary Air Temperature Malfunction
- Air Delivery Improper
- Air Delivery Improper - Auxiliary
- Vacuum Control System Diagnostic
- Repair Instructions
- Heater and Air Conditioning Control Replacement
- Heater and Air Conditioning Control Temperature Knob Replacement
- Temperature Valve Actuator Replacement
- Defroster Valve Actuator Replacement
- Mode Valve Actuator Replacement - Upper
- Mode Valve Actuator Replacement - Lower
- Air Inlet Valve Actuator Replacement
- Vacuum Tank Replacement
- Vacuum Pump Assembly Replacement
- Auxiliary Heater and Air Conditioning Control Replacement - Front
- 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
- Description and Operation
RENDER: 1.0x
NO RELATED
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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.