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 MANUALSPONTIAC2006WAVE BASE, 4D SEDAN, Y4M/MLMREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE MECHANICALCOOLING SYSTEM (MECHANICAL)ENGINE COOLING SYSTEM
2006 Pontiac Wave Base, 4D Sedan, Y4M/MLM
Engine Cooling System
2006 Pontiac Wave Base, 4D Sedan, Y4M/MLMSECTION Engine Cooling System
- Specifications
- Schematic and Routing Diagrams
- Component Locator
- Diagnostic Information and Procedures
- Diagnostic Starting Point - Engine Cooling
- DTC P0480 or P0481
- Symptoms - Engine Cooling
- Cooling Fan Circuit Diagnosis (Single Fan)
- Cooling Fan Circuit Diagnosis (Dual Fans)
- Engine Overheating
- Loss of Coolant
- Thermostat Diagnosis
- Coolant Heater Inoperative
- Engine Fails To Reach Normal Operating Temperature
- Pressure Cap Testing
- Repair Instructions
- Draining and Filling Cooling System
- Coolant Pump Replacement (1.4L/1.6L DOHC)
- Surge Tank Replacement
- Cooling Fan Replacement - Electric
- Thermostat Replacement (1.4/1.5L SOHC)
- Thermostat Replacement (1.4L/1.6L DOHC)
- Thermostat Replacement (1.2L SOHC)
- Radiator Replacement
- Coolant Heater Replacement
- Coolant Heater Cord Replacement
- 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.