* Under the hood, in the power distribution center (PDC) or fuse box: This is the most likely location. The PDC is usually a large box containing fuses and relays, often located near the battery. You'll need to consult your owner's manual or a wiring diagram to identify the specific relay. Look for relays that might be labeled "AIR SUSPENSION," "AIR RIDE," or something similar. The relay may be a specific one for the compressor itself or part of a larger system.
* Inside the passenger compartment, under the dash: This is less common for the main compressor relay, but some secondary relays or control modules related to the air suspension might be found here.
To find it reliably:
1. Consult your owner's manual: This is the best starting point. It should have a diagram of the fuse and relay boxes, indicating the location and function of each component.
2. Use a wiring diagram: A wiring diagram (available online through repair manuals or from auto parts stores) will definitively show you which relay controls the air compressor and where it's located within the fuse box.
3. Visually inspect the PDC: If you can't find it in the manual, carefully open the under-hood PDC. Many relays look similar, so pay close attention to any markings that might hint at their function, or use a multimeter to check the continuity of circuits to identify it. *Always disconnect the negative battery terminal before working on the electrical system.*
4. Search online forums: Searching for "2000 Lincoln Navigator air suspension relay location" in forums dedicated to Lincoln vehicles might yield helpful results from other owners who've encountered similar situations.
Remember to be cautious when working with electrical components. If you're unsure about any step, it's best to consult a qualified mechanic.
