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Where is emergency fuel pump shutoff switch for a 2004 Chevy aveo?

There isn't a readily accessible, easily identifiable "emergency fuel pump shutoff switch" in a 2004 Chevy Aveo like you might find in some larger vehicles or those with aftermarket installations. The fuel pump is controlled electronically and its safety mechanisms are built into the car's computer system and safety features (like the crash sensors). Disconnecting the fuel pump would require accessing the fuel pump itself (usually under the rear seat or in the fuel tank) and disconnecting the electrical connector, which is not a simple or safe procedure for someone without mechanical experience.

If you have a fuel leak or other serious fuel-related emergency, your best course of action is to:

1. Turn off the vehicle immediately. This will cut the power to the fuel pump.

2. Disconnect the negative battery terminal. This is a more reliable way to ensure the fuel pump is completely de-energized.

3. Contact emergency services. Do not attempt to repair the fuel system yourself unless you are properly trained and equipped.

Trying to locate and disable the pump yourself risks injury and further damage to your car. Always prioritize safety and call for professional assistance in situations like this.