* Faulty fuel pump: This is the most common culprit.
* Fuel pump relay: A bad relay prevents power from reaching the pump.
* Clogged fuel filter: Restricts fuel flow.
* Low fuel pressure: Could be due to several components failing.
* Bad fuel pump control module: Controls the pump's operation.
* Wiring issues: A short or broken wire can interrupt power.
If your 1999 Cadillac Deville isn't starting or running properly, you should have a mechanic diagnose the problem. Trying to "reset" something that doesn't exist will waste your time and may even cause further damage.