Where is the fuse for the idle air valve on a 1999 ford expedition?

The fuse for the idle air control (IAC) valve on a 1999 Ford Expedition is typically found in the fuse panel located under the dashboard on the driver's side. You can refer to the fuse diagram on the cover of the fuse box or in the owner's manual for specific details on the fuse number and amperage. If you're troubleshooting, it's a good idea to check the fuses related to the engine management system as well.