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 MANUALSCHEVROLET2006COBALT SS, 4D SEDAN, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 504 (ENGINE COOLING SYSTEM)
2006 Chevrolet Cobalt SS, 4D Sedan, Standard
Section 504 (Engine Cooling System)
2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION Section 504 (Engine Cooling System)
WARNING: This page is about a different car, the 2007 Chevrolet Monte Carlo and 2007 Chevrolet Impala. 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
- DTC P0480 or P0481
- 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 MIL/DTC
- Diagnostic Aids
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Procedures
- DTC P1258
- Symptoms - Engine Cooling
- Engine Coolant Temperature Indicator Always On
- Cooling Fan Always On
- Cooling Fan Inoperative
- Engine Overheating
- Loss of Coolant
- Thermostat Diagnosis
- Coolant Heater Inoperative
- Engine Fails To Reach Normal Operating Temperature
- Pressure Cap Testing
- Coolant Leak Testing
- Repair Instructions
- Draining and Filling Cooling System (9C1, 9C3 Static Fill)
- Draining and Filling Cooling System (LS4 GE 47716 Fill)
- Draining and Filling Cooling System (LS4 Static Fill)
- Draining and Filling Cooling System (LZE, LZ4, LZ8, 9C1, 9C3, GE47716 Fill)
- Draining and Filling Cooling System (LZE, LZ4, LZ8 Static Fill)
- Flushing
- Radiator Cleaning
- Coolant Recovery Reservoir Replacement (RPO LS4)
- Coolant Recovery Reservoir Replacement (RPOs LZE, LZ4, LZ8)
- Radiator Inlet Hose Replacement (RPO LS4)
- Radiator Inlet Hose Replacement (RPOs LZE, LZ4, LZ8)
- Radiator Outlet Hose Replacement (RPO LS4)
- Radiator Outlet Hose Replacement (RPOs LZE, LZ4, LZ8)
- Engine Oil Cooler Pipe/Hose Quick Connect Fitting
- Engine Oil Cooler Hose/Pipe Replacement
- Auxiliary Engine Oil Cooler Replacement
- Cooling Fan Motor Replacement - Electric
- Engine Coolant Thermostat Housing Replacement (RPO LS4)
- Engine Coolant Thermostat Housing Replacement (RPOs LZE, LZ4, LZ8)
- Thermostat Replacement (RPO LS4)
- Thermostat Replacement (RPOs LZE, LZ4, LZ8)
- Engine Coolant Crossover Pipe Replacement (LZE/LZ4/LZ8)
- Coolant Air Bleed Pipe Assembly Replacement (RPO LS4)
- Coolant Air Bleed Hose Replacement (RPO LS4)
- Water Pump Replacement (RPO LS4)
- Water Pump Replacement (RPOs LZE, LZ4, LZ8)
- Coolant Pump Manifold Replacement (RPO LS4)
- Radiator Drain Cock Replacement
- Fan Shroud Replacement
- Radiator Replacement
- Radiator Air Lower Baffle and Deflector Replacement
- Radiator Air Upper Baffle and Deflector Replacement
- Coolant Heater Replacement (RPO LS4)
- Coolant Heater Replacement (RPOs LZE, LZ4, LZ8)
- Coolant Heater Cord Replacement (RPO LS4)
- Coolant Heater Cord Replacement (RPOs LZE, LZ4, LZ8)
- 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.