Propably needs a tune up. Plugs & wires. This vehicle is 11 years old.
Check engine light on steady = have your vehicle checked.If it is blinking = have your vehicle checked now.=============================================Just adding to the answer :If your check engine light is blinking that means that an engine cylindermisfire has been detected . You can drive it in for repair , just avoid anyrapid acceleration or deceleration because you can damage the catalyticconverter
I would check the plug wires and the exhaust system.
it could be the coil
no, door locks have nothing to do with check engine light.
It will cause the check engine light to come on with no benefits.
On a 2001 Ford Windstar the check engine light looks like a picture of an engine just to the right and a little bit lower than the ( O/D OFF light )
it could be an issue related to your oxygen intake check oxy sensors if check engine light is on.
you have a cylinder misfire
Turn on the ignition and do not start the engine. The light will come on unless the bulb is burnt out or someone has removed it.
when my dodge stratus started to do that it was because I needed transmission fluid.
If your check engine light is flashing when the engine is running that means that an engine cylinder misfire has been detected ( if you are going to drive it in for repair avoid any rapid acceleration / braking , you can damage the catalytic converter )
It's the icon / graphic of a an engine, upper right hand area of the instrument panel.