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 MANUALSPONTIAC2006G6 GTP, 2D COUPE, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 552 (ENGINE COOLING SYSTEM)
2006 Pontiac G6 GTP, 2D Coupe, Standard
Section 552 (Engine Cooling System)
2006 Pontiac G6 GTP, 2D Coupe, StandardSECTION Section 552 (Engine Cooling System)
WARNING: This page is about a different car, the 2006 Buick Lucerne. 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
- DTC P1258
- Symptoms - Engine Cooling
- Low Engine Coolant 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
- Cooling System Draining and Filling (Static Fill)
- Cooling System Draining and Filling (Vac-N-Fill)
- Flushing
- Radiator Cleaning
- Radiator Surge Tank Replacement (LD8)
- Coolant Recovery Reservoir Replacement
- Radiator Surge Tank Inlet Hose/Pipe Replacement (LD8)
- Radiator Surge Tank Outlet Hose/Pipe Replacement (LD8)
- Radiator Inlet Hose Replacement (LD8)
- Radiator Inlet Hose Replacement (L26)
- Radiator Outlet Hose Replacement (LD8)
- Radiator Outlet Hose Replacement (L26)
- Radiator Vent Inlet Hose Replacement
- Engine Cooling Fan Replacement
- Engine Coolant Fan Motor Replacement
- Engine Coolant Thermostat Replacement (L26)
- Engine Coolant Thermostat Replacement (LD8)
- Engine Coolant Crossover Pipe Replacement (LD8)
- Thermostat Bypass Pipes Replacement (L26)
- Water Pump Drive Belt Tensioner Shield Replacement (LD8)
- Water Pump Pulley Replacement (LD8)
- Water Pump Drive Belt Tensioner Replacement (LD8)
- Water Pump Belt Replacement (LD8)
- Water Pump Replacement (L26)
- Water Pump Replacement (LD8)
- Fan Shroud Replacement (L26)
- Fan Shroud Replacement (LD8)
- Radiator Replacement (L26)
- Radiator Replacement (LD8)
- Radiator Support Bracket Replacement
- Coolant Heater Replacement (L26)
- Engine Coolant Heater Replacement - Left Side (RPO LD8)
- Engine Coolant Heater Replacement - Right Side (RPO LD8)
- Coolant Heater Cord Replacement (RPO L26)
- Coolant Heater Cord Replacement (LD8)
- 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.