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 MANUALSCHEVROLET2009IMPALA V8-5.3LREPAIR AND DIAGNOSISMAINTENANCEHOSESCOOLANT LINE/HOSESERVICE AND REPAIR
2009 Chevrolet Impala V8-5.3L
Coolant Line/Hose: Service and Repair
2009 Chevrolet Impala V8-5.3LSECTION Service and Repair
Engine Coolant Air Bleed Hose Replacement (LS4-5.3L)
Removal Procedure
1. Drain a small amount of coolant from the radiator. Refer to Cooling System Draining and Filling (9C1, 9C3 Static Fill) (Service and Repair)Cooling System Draining and Filling (LZE, LZ4, LGD Static Fill) (Service and Repair)Cooling System Draining and Filling (LZE, LZ4, LGD, 9C1, 9C3, GE47716 Fill) (Service and Repair).
2. Reposition the coolant air bleed hose clamp (322) at the coolant air bleed pipe (307).
3. Reposition the coolant air bleed hose clamp (322) at the water manifold.
4. Remove the coolant air bleed hose from the water manifold.
5. Remove the coolant air bleed hose from the coolant air bleed pipe.
6. Remove the clamps from the coolant air bleed hose, if necessary.
Installation Procedure
1. Install the clamps onto the coolant air bleed hose, if necessary.
2. Install the coolant air bleed hose onto the coolant air bleed pipe.
3. Install the coolant air bleed hose onto the water manifold.
4. Position the coolant air bleed hose clamp (322) at the water manifold.
5. Position the coolant air bleed hose clamp (322) at the coolant air bleed pipe (307).
6. Refill the coolant system. Refer to Cooling System Draining and Filling (9C1, 9C3 Static Fill) (Service and Repair)Cooling System Draining and Filling (LZE, LZ4, LGD Static Fill) (Service and Repair)Cooling System Draining and Filling (LZE, LZ4, LGD, 9C1, 9C3, GE47716 Fill) (Service and Repair) , as necessary.
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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.