Where is the fuel pump relay on a 2000 cadillac deville?

The fuel pump relay location on a 2000 Cadillac DeVille is in the underhood fuse box (also called the Power Distribution Center or PDC). However, it's not a dedicated "fuel pump relay." Instead, the fuel pump is controlled through a circuit within the PDC, often via a relay that's not specifically labeled as such. You'll need to consult your owner's manual's fuse and relay diagrams to find the correct one; they typically show the relay's location and the circuit it controls.

Without the diagram, pinpointing the exact relay is difficult. You might find it labeled as a "fuel system" relay or possibly integrated within a larger relay module. The best approach is to:

1. Locate your owner's manual: This is the most reliable source for the exact location and diagram.

2. Use a multimeter: If you're comfortable with basic electrical work, you can test relays to determine which one controls the fuel pump circuit. This requires knowledge of automotive electrical systems.

3. Consult a repair manual: A Haynes or Chilton repair manual for your year and model will have detailed diagrams and procedures.

Attempting to find the relay without these resources could lead to accidentally identifying and tampering with the wrong components, which could cause further issues.