Can any one tell you which or number of the fuel pumprelay on Lincoln ls 3.9ltr 2001?

There isn't a single "fuel pump relay" number on a 2001 Lincoln LS 3.9L. The fuel pump control is more sophisticated than a simple relay. The system likely uses a Powertrain Control Module (PCM) or Engine Control Module (ECM) to control the fuel pump, often through a series of circuits and potentially multiple relays or even solid-state switching within the PCM itself.

To find the relevant components, you'll need to consult a wiring diagram specific to your 2001 Lincoln LS 3.9L. These diagrams show the path of the electrical circuits and which relays or components are involved. You can find these diagrams in:

* A repair manual: A Haynes or Chilton manual for your car will have detailed wiring diagrams.

* Online automotive databases: Sites like AlldataDIY or Mitchell 1 offer access to factory service manuals (subscription required).

* A local auto parts store: Some auto parts stores may have access to wiring diagrams on their computer systems.

Once you have the wiring diagram, look for the circuits related to the fuel pump. You'll likely find the PCM/ECM is the primary controller, and the diagram will show how it interacts with other components, potentially including relays. Don't just assume a single relay controls the fuel pump; there might be multiple relays involved in different aspects of the system (e.g., one for initial priming, another for continuous operation).