2004 Chevy cavalier fuel relay location?

The fuel pump relay location in a 2004 Chevy Cavalier is in the underhood fuse block. However, there's no single "fuel relay" as such; the fuel pump is controlled indirectly. The system uses several components working together. You're likely to find either a fuel pump circuit breaker or the control is handled through a powertrain control module (PCM) that uses a specific fuse.

To find the relevant component, you need to:

1. Consult your owner's manual: This is the best resource. It will have a diagram of the fuse box, showing the locations and what each fuse or relay controls. Look for terms like "fuel pump," "fuel injection," or "electric fuel pump."

2. Check the underhood fuse block diagram: A diagram should be on the inside of the fuse block cover. This will help you locate the correct fuse or circuit breaker.

3. Use a multimeter: If you can't find the information in your manual or on the fuse block, you can use a multimeter to check the circuit for power. However, this requires some electrical knowledge and should only be attempted if you're comfortable working with car electrical systems.

Important Safety Note: Before working with any electrical components in your car, disconnect the negative terminal from your battery. This prevents accidental shorts and potential injury.