Many reasons! Go to the Dealer or Auto Zone (free) and have your problem codes read from the computer in the car.
You can not disconnect the check engine light.
it means you need to check the engine
A flashing check engine light is an indication of a severe engine misfire.
Auto Zone will check your engine light for free... Write down the codes and go from there.
According to the 2000 Ford Explorer Owner Guide : No , a separate fuse for the check engine light is not listed
The check engine light is a " picture " of an engine , just to the left of the engine temperature gauge
a 2000 dodge ram 1500 the check engine light is on and the code says torque converter and clutch and overdrive solenoid. what do you think that the problem is?
With a scan tool.
Check the oxygen detector.
With a scan tool.
A flashing check engine light normally means you have a misfire.
you need a scanner