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 MANUALSCHEVROLET2006SUBURBAN K2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 862 (ENGINE COOLING SYSTEM)
2006 Chevrolet Suburban K2500, 6.0 U
Section 862 (Engine Cooling System)
2006 Chevrolet Suburban K2500, 6.0 USECTION Section 862 (Engine Cooling System)
WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Schematic and Routing Diagrams
- Component Locator
- Diagnostic Information and Procedures
- Diagnostic Code Index
- Diagnostic Starting Point - Engine Cooling
- Scan Tool Output Controls
- Scan Tool Data List
- Scan Tool Data Definitions
- DTC P0480 or P0481 (2.2L and 2.4L)
- 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 Procedures
- DTC P0480 or P0481 (3.5L)
- 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 Procedures
- Symptoms - Engine Cooling
- Low Engine Coolant Indicator Always On
- Cooling Fan Always On (2.2L and 2.4L)
- Cooling Fan Always On (3.5L)
- Cooling Fan Inoperative (2.2L and 2.4L)
- Cooling Fan Inoperative (3.5L)
- Engine Overheating
- Loss of Coolant
- Thermostat Diagnosis
- Engine Fails To Reach Normal Operating Temperature
- Pressure Cap Testing
- Coolant Leak Testing
- Repair Instructions
- Draining and Filling Cooling System (Static Fill)
- Draining and Filling Cooling System (GE 47716 Fill)
- Coolant System Flushing
- Surge Tank Replacement
- Radiator Surge Tank Inlet Hose/Pipe Replacement (L61/LAT)
- Radiator Surge Tank Outlet Hose/Pipe Replacement (L61)
- Radiator Surge Tank Outlet Hose/Pipe Replacement (LAT)
- Radiator Inlet Hose Replacement (L61/LAT)
- Radiator Inlet Hose Replacement (L66)
- Radiator Outlet Hose Replacement (L61)
- Radiator Outlet Hose Replacement (L66)
- Radiator Outlet Hose Replacement (LAT)
- Throttle Body Heater Inlet Hose Replacement
- Throttle Body Heater Outer Hose Replacement
- Engine Cooling Fan Replacement (L66)
- Engine Coollant Fan Motor Replacement (L66)
- Cooling Fan and Shroud Replacement (L61)
- Cooling Fan and Shroud Replacement (L66)
- Cooling Fan and Shroud Replacement (LAT)
- Engine Coolant Thermostat Housing Replacement (2.4L (LAT))
- Thermostat Replacement (2.2L (L61))
- Thermostat Replacement (2.4L (LAT))
- Thermostat Replacement (3.5L (L66))
- Engine Coolant Crossover Pipe Replacement (3.5L (L66))
- Water Pump Replacement (2.2L (L61))
- Water Pump Replacement (2.4L (LAT))
- Water Pump Replacement (3.5L (L66))
- Radiator Drain Cock Replacement
- Radiator Replacement (L61)
- Radiator Replacement (L66)
- Radiator Replacement (LAT)
- Coolant Heater Replacement (2.2L (L61))
- Coolant Heater Replacement (2.4L (LAT))
- Coolant Heater Replacement (3.5L (L66))
- Coolant Heater Cord Replacement (2.2L (L61))
- Coolant Heater Cord Replacement (2.4L (LAT))
- Coolant Heater Cord Replacement (3.5L (L66))
- Description and Operation
- Special Tools and Equipment
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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.