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.
2004 Chevrolet Optra (CANADA) L4-2.0LFACTORY OEM SERVICE PROCEDURE
Fuel Tank Pressure Sensor: Service and Repair
Fuel Tank Pressure Sensor Replacement
Removal Procedure
1. Remove the fuel fill cap.
Caution: Refer to Battery Disconnect Caution Battery Disconnect Caution.
2. Disconnect the negative battery cable.
3. Remove the rear seat. Refer to Rear Seat Cushion Replacement Service and Repair.
4. Remove the fuel sender assembly access cover.
5. Disconnect the fuel tank pressure (FTP) sensor electrical connector.
6. Remove the FTP from the fuel sender assembly.
Installation Procedure
1. Install the FTP sensor to the fuel sender assembly.
2. Connect the FTP sensor electrical connector.
3. Install the fuel pump access cover.
4. Install the rear seat. Refer to Rear Seat Cushion Replacement Service and Repair.
5. Connect the negative battery cable.
6. Install the fuel fill cap.
Factory Service Tools
Use the Manual With the Right Hardware
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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.