You need to see what the code is. Most likely it is an O2 code or EVAP code both are very popular on that model.
or...
there is a crack (or cracks) on your gas filler neck (usually near the gas cap) and the computer is detecting that gas fumes are leaking. That's what the code was on my 2001 Explorer Sport.
If the check engine light is flashing that means an engine cylinder misfire has been detected
The check engine light comes on when the engine computer has detected a malfunction and set a trouble code.
Take it to advance auto and they will do it for free.
You use a scan tool after repairing the cause of the code that turned the light on.
A check engine light informs you that there is something wrong with the engine. After you run a diagnostic test, you will be able to tell what exactly is wrong.
Im guessing there is something wrong with your car!
If your check engine light is staying on , that indicates that a malfunction has been detected with the emission control system . You need to have your Explorer scanned for any trouble codes in order to diagnose and repair the problem , then the light can be reset
The check engine light is the light shaped like an engine, or the light that states Check Engine (Soon). If this light comes on, it is time to see what the issue is with the engine.
After the Explorer is scanned for trouble codes to diagnose and then repair the malfunction , then the check engine light can be reset
The light that shows an engine symbol is your check engine light . If the light stays on while the engine is running, the OBD II system has detected a possible problem with your emission system. If the light flashes on and off, an engine "miss" has been detected . Have your Explorer scanned for any trouble codes to find and then repair the problem.
sometimes after making a repair or replacement, the computer needs to be reset by a mechanic
According to the 2000 Ford Explorer Owner Guide : No , a separate fuse for the check engine light is not listed