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.

2007 Chevrolet Optra LS, AutomaticFACTORY OEM SERVICE PROCEDURE

Installation Procedure

NOTE: Always re-attach the fuel lines and fuel filter with all original type fasteners and hardware.
Do not repair sections of fuel pipes.

Fig 1: View Of Fuel Sender Assembly And Electrical Wires

Courtesy of GENERAL MOTORS CORP.

Wind the wires (1) around the sender assembly (2).

Fig 2: Inserting Fuel Sender Into Fuel Pump Assembly

Courtesy of GENERAL MOTORS CORP.

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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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.