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 V6-3.5LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSSENSORS AND SWITCHES - COMPUTERS AND CONTROL SYSTEMSFUEL TANK PRESSURE SENSORSERVICE AND REPAIRFUEL TANK PRESSURE SENSOR REPLACEMENT (NU6)
2009 Chevrolet Impala V6-3.5L
Fuel Tank Pressure Sensor Replacement (NU6)
2009 Chevrolet Impala V6-3.5LSECTION Fuel Tank Pressure Sensor Replacement (NU6)
Fuel Tank Pressure Sensor Replacement (NU6)
Removal Procedure
1. Remove the fuel tank. Refer to Fuel Tank Replacement (NC7) (Service and Repair)Fuel Tank Replacement (NU6) (Service and Repair).
2. Disconnect the fuel tank wiring harness electrical connector from the fuel pressure sensor (1).
Important: It is not necessary to remove the evaporative emission (EVAP) canister in order to remove the fuel pressure sensor.
3. Using a small flat bladed tool, gently pry the fuel pressure sensor (1) out of the EVAP canister in order to remove the sensor.
Installation Procedure
1. Lubricate the fuel pressure seal with a very small amount of clean engine oil.
2. Install the fuel pressure sensor (1) to the EVAP canister.
3. Connect the fuel tank wiring harness electrical connector to the fuel pressure sensor (1).
4. Install the fuel tank. Refer to Fuel Tank Replacement (NC7) (Service and Repair)Fuel Tank Replacement (NU6) (Service and Repair).
RENDER: 1.0x
NO RELATED
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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.