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 1139 (ENGINE COOLING SYSTEM)
2006 Pontiac G6 GTP, 2D Coupe, Standard
Section 1139 (Engine Cooling System)
2006 Pontiac G6 GTP, 2D Coupe, StandardSECTION Section 1139 (Engine Cooling System)
WARNING: This page is about a different car, the 2008 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Schematic and Routing Diagrams
- Diagnostic Information and Procedures
- Diagnostic Code Index
- Diagnostic Starting Point - Engine Cooling
- DTC P0480 or P0481
- 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 P1258
- Symptoms - Engine Cooling
- 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 (LY7, LZ4, Static Fill)
- Cooling System Draining and Filling (LAT Static Fill)
- Cooling System Draining and Filling (LE5 Static Fill)
- Flushing
- Radiator Cleaning
- Radiator Surge Tank Replacement
- Radiator Surge Tank Inlet Hose/Pipe Replacement (LAT)
- Radiator Surge Tank Inlet Hose/Pipe Replacement (LE5)
- Radiator Surge Tank Inlet Hose/Pipe Replacement (LY7)
- Radiator Surge Tank Inlet Hose/Pipe Replacement (LZ4)
- Radiator Surge Tank Outlet Hose/Pipe Replacement (LAT)
- Radiator Surge Tank Outlet Hose/Pipe Replacement (LE5)
- Radiator Surge Tank Outlet Hose/Pipe Replacement (LY7)
- Radiator Surge Tank Outlet Hose/Pipe Replacement (LZ4)
- Radiator Inlet Hose Replacement (LAT)
- Radiator Inlet Hose Replacement (LE5)
- Radiator Inlet Hose Replacement (LY7)
- Radiator Inlet Hose Replacement (LZ4)
- Radiator Outlet Hose Replacement (LAT)
- Radiator Outlet Hose Replacement (LE5)
- Radiator Outlet Hose Replacement (LY7)
- Radiator Outlet Hose Replacement (LZ4)
- Radiator Outlet Pipe Replacement (LAT)
- Radiator Outlet Hose Replacement - Radiator Outlet Pipe to Engine Coolant Thermostat Housing Pipe (LAT)
- Cooling Fan and Shroud Replacement
- Engine Coolant Thermostat Housing Replacement (LZ4)
- Engine Coolant Thermostat Housing Replacement (LAT)
- Engine Coolant Thermostat Housing Replacement (LE5)
- Engine Coolant Thermostat Housing Replacement (LY7)
- Engine Coolant Thermostat Replacement (LZ4)
- Engine Coolant Thermostat Replacement (LAT, LE5)
- Engine Coolant Thermostat Replacement (LY7)
- Engine Coolant Crossover Pipe Replacement (LZ4)
- Coolant Air Bleed Pipe Assembly Replacement (LY7)
- Water Pump Replacement (LZ4)
- Water Pump Replacement (LAT)
- Water Pump Replacement (LY7)
- Water Pump Replacement (LE5)
- Radiator Replacement (LE5)
- Radiator Replacement (LZ4, LAT)
- Radiator Replacement (LY7)
- Radiator Support Bracket Replacement
- Radiator Support Replacement
- Radiator Air Lower Baffle and Deflector Replacement
- Radiator Air Side Baffle and Deflector Replacement
- Radiator Air Upper Baffle and Deflector Replacement
- Coolant Heater Replacement (LZ4)
- Coolant Heater Replacement (LY7)
- Coolant Heater Replacement (LE5)
- Coolant Heater Replacement (LAT)
- Coolant Heater Cord Replacement (LZ4)
- Coolant Heater Cord Replacement (LAT)
- Coolant Heater Cord Replacement (LE5)
- Coolant Heater Cord Replacement (LY7)
- 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.