How do you adjust the idle on a 2000 Ford Expedition?

To adjust the idle on a 2000 Ford Expedition, first ensure the engine is at normal operating temperature. Locate the idle air control (IAC) valve, which is usually found on the throttle body. You can clean the IAC if idle issues persist, but the idle is typically controlled by the engine control module (ECM) and may not have a manual adjustment. If problems continue, consider checking for vacuum leaks or using a diagnostic tool to reset any error codes.