check out the articles on this site at -Auto Tap -they have quite a few DIY articles on this subject.
i've had this prob it's n the tranny check a ford repair book
it is probably throwing off a sensor, like the mass airflow or map sensor and causing the check engine light to come on
It means your EGR sensor voltage is higher or lower then expected during self check.
The check engine light comes on to indicate a possible problem with one of the engine's emission control systems. Take it in for service, and have the vehicle scanned for any trouble codes to locate the problem - usually a sensor.
On a 1997 Ford Explorer : CHECK ENGINE is just to the left of the " C " on the engine coolant temperature gauge ( Helpfull )
no you have to change air sensor
Chances are it is an oxygen sesor. An OBII code reader should tell you if it is the front or rear sensor. I replcaed the front O2 sensor on my Explorer last fall. Easy job too!!!
The knock sensor has failed and you need to replace it with a new one in order for the check engine light to go out.
No ,the check engine light indicates a trouble code. Have the truck scanned, it is the fastest way to diagnose the problem.
After the Explorer is scanned for trouble codes to diagnose and then repair the malfunction , then the check engine light can be reset
To replace the fuel rail sensor on a 2004 Ford Explorer, first, ensure the engine is cool and disconnect the negative battery cable. Remove the intake manifold or any components obstructing access to the fuel rail sensor. Disconnect the wiring harness from the sensor, unscrew it from the fuel rail, and then install the new sensor by reversing these steps. Finally, reconnect the battery and check for leaks or any issues before starting the engine.
The oxygen sensor is one of many things that could turn the check engine light on.The oxygen sensor is one of many things that could turn the check engine light on.