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Where is the fuel pump fuse and relay located in a 2003 Avalanche?

The fuel pump fuse and relay location in a 2003 Chevrolet Avalanche depends slightly on the specific trim level and options, but they're generally found in the underhood fuse box (Power Distribution Center or PDC). There isn't a single, universally labeled "fuel pump" fuse or relay. Instead, you'll need to consult your owner's manual.

To find the correct fuse and relay:

1. Consult your Owner's Manual: This is the most reliable way. Your manual will have a diagram showing the fuse box layout and will clearly identify the fuse and relay responsible for the fuel pump (it might be labeled as "Fuel Pump," "EFI," or something similar).

2. Look in the Underhood Fuse Box: Once you know which fuse and relay to look for from your manual, open the underhood fuse box (usually located near the battery). The cover should have a diagram showing the fuse and relay positions.

Important Note: Be cautious when working with electrical components. Always disconnect the negative battery terminal before working on fuses or relays to prevent short circuits and accidental shocks.

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