To find potential culprits, you should check:
1. The underhood fuse box: This is usually located near the battery. Consult your owner's manual for a diagram showing fuse locations and amperage. Look for fuses related to the A/C compressor or blower motor. These are often high-amperage fuses.
2. The interior fuse panel: This is usually located inside the car, often in the dashboard or under the steering wheel. Again, your owner's manual is essential.
3. The AC compressor relay: This relay controls the power to the compressor clutch. It's typically located in the underhood fuse box. You'll need to visually inspect it, and possibly swap it with a known good relay of the same amperage rating (this is a safer way to test than just checking the relay with a multimeter unless you are experienced with electrical testing).
Important Note: Before working with any electrical components, disconnect the negative battery terminal.
Instead of searching blindly:
* Your owner's manual is your best friend: It contains the most accurate and up-to-date fuse box diagrams and descriptions.
* Online forums: Search online forums specific to the 2002 Lincoln LS. Other owners may have experienced the same problem and documented the solution, including which fuse or relay they replaced.
Simply put, there's no single "AC fuse." Finding the problem requires a systematic approach using your owner's manual and potentially some troubleshooting. If you are not comfortable working with automotive electrical systems, take it to a qualified mechanic.
