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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1771 (ENGINE COOLING SYSTEM - NON-HYBRID)
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2
Section 1771 (Engine Cooling System - Non-Hybrid)
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Section 1771 (Engine Cooling System - Non-Hybrid)
WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Schematic Wiring Diagrams
- Diagnostic Information and Procedures
- Diagnostic Code Index
- DTC P0480 or P0481 (without HP2)
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Typical Scan Tool Data
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the MIL/DTC
- Diagnostic Aids
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Component Testing
- Repair Procedures
- DTC P0480, P0481, or P0482 (with HP2)
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Typical Scan Tool Data
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the MIL/DTC
- Diagnostic Aids
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Component Testing
- Repair Procedures
- DTC P1258
- Symptoms - Engine Cooling
- Low Engine Coolant Indicator Always On
- Cooling Fan Always On (without HP2)
- Cooling Fan Always On (with HP2)
- Cooling Fan Inoperative (without HP2)
- Cooling Fan Inoperative (with HP2)
- Engine Overheating
- Loss of Coolant
- Thermostat Diagnosis
- Coolant Heater Inoperative (with Diesel)
- Coolant Heater Inoperative (without Diesel)
- Engine Fails To Reach Normal Operating Temperature
- Pressure Cap Testing
- Coolant Leak Testing
- Fan Clutch Diagnosis
- Repair Instructions
- Cooling System Draining and Filling
- Flushing
- Radiator Cleaning
- Radiator Surge Tank Replacement (Non-HP2)
- Radiator Surge Tank Inlet Hose/Pipe Replacement (Non-HP2)
- Radiator Inlet Hose Replacement (Non-HP2)
- Radiator Inlet Hose Replacement (Diesel)
- Radiator Outlet Hose Replacement (Diesel)
- Radiator Outlet Hose Replacement (Non-HP2)
- Radiator Hose Quick Connect Fitting
- Radiator Vent Inlet Hose Replacement (Non-HP2)
- Engine Oil Cooler Connector Replacement
- Engine Oil Cooler Pipe/Hose Quick Connect Fitting Replacement
- Engine Oil Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection
- Engine Oil Cooler Hose/Pipe Replacement
- Fan Replacement (Mechanical)
- Fan Replacement (Diesel)
- Fan Clutch Replacement (Diesel)
- Fan Pulley Replacement
- Engine Coolant Fan Replacement (Non-HP2)
- Engine Coolant Fan Motor Replacement (Non-HP2)
- Cooling Fan and Shroud Replacement (Non-HP2)
- Engine Coolant Fan Resistor Replacement (Left HP2)
- Engine Coolant Fan Resistor Replacement (Right HP2)
- Turbocharger Coolant Bypass Valve Replacement
- Turbocharger Coolant Hoses/Pipes Replacement (LMM Outlet Pipe)
- Exhaust Gas Recirculation Coolant Hoses/Pipes Replacement
- Water Outlet Tube Replacement (LU3)
- Water Outlet Tube Replacement (LMM)
- Engine Coolant Thermostat Housing Replacement (LFA, LH6, LMG, LY2, LY5, LY6)
- Engine Coolant Thermostat Replacement (V8)
- Engine Coolant Thermostat Replacement (LMM)
- Engine Coolant Thermostat Replacement (LU3)
- Thermostat Housing Crossover Replacement (LMM)
- Thermostat Bypass Pipe Replacement (Diesel)
- Engine Coolant Air Bleed Pipe Replacement (with AFM)
- Engine Coolant Air Bleed Pipe Replacement (without AFM)
- Water Pump Replacement (LU3)
- Water Pump Replacement (LMM)
- Water Pump Replacement (V8)
- Engine Coolant Fan Upper Shroud Replacement (LMM Diesel)
- Engine Coolant Fan Upper Shroud Replacement (Mechanical)
- Engine Coolant Fan Lower Shroud Replacement (Mechanical)
- Radiator Replacement (LMM)
- Radiator Replacement (4.3L, 4.8L, 5.3L, and 6.0L)
- Radiator Air Upper Baffle and Deflector Replacement
- Coolant Heater Replacement (V8 Rear)
- Coolant Heater Replacement (V8 Front)
- Coolant Heater Replacement (LMM)
- Coolant Heater Replacement (V6)
- Coolant Heater Cord Replacement (LH6, LMG, LY2 and LY5)
- Coolant Heater Cord Replacement (LY6)
- Coolant Heater Cord Replacement (L76/L92)
- Coolant Heater Cord Replacement (LMM)
- Description and Operation
- Cooling Fan Description and Operation (Gas)
- Cooling System Description and Operation
- Engine Coolant Indicators
- Cooling Fan Control - Two Fan System
- Coolant Level Control (If Equipped)
- Coolant Heater
- Auxiliary Coolant Pump (w/HP2)
- Cooling System
- Notes
- Cooling Cycle
- Cooling Cycle (6.6L Diesel Engine)
- Coolant
- Radiator
- Surge Tank
- Surge Tank (6.6L Diesel Engine)
- Pressure Cap
- Cooling Fan and Clutch
- Air Baffles and Seals
- Water Pump
- Water Pump (6.6L Diesel Engine)
- Thermostat
- Thermostats (6.6L Diesel Engine)
- Engine Oil Cooler
- Engine Oil Cooler (6.6L Diesel Engine)
- Transmission Oil Cooler
- Turbocharger Bypass Valve (6.6L Diesel Engine)
- 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.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.