Hello! good afternoon, this day we will created an article about How to Fix the Check Engine Light on a Ford Expedition
All Ford Expedition vehicles use the exact same computer program and set of codes for recording and diagnosing engine failures. Such a set of codes is popularly known as OBD-II, or On-Board Diagnostics, Series 2. It is through this system that the check engine light is activated. The Check Engine light indicates that there is a problem with the engine. Discover here how to fix the check engine light on a ford expedition.
As its name implies, the OBD-II program is in charge of fully monitoring the engine through dozens of sensors in order to warn the driver if any of them exceed the pre-manufactured parameters. If perhaps something is wrong with the engine, the computer will turn on the check engine light (CEL).
What Does the Check Engine Light Indicate on a Ford Expedition?

The Check Engine light can indicate various problems, some more serious than others, here are some:
Drivers often ignore their Check Engine light, thinking the problem is minor. Nevertheless, it’s hard to know what’s wrong with the engine without performing an accurate diagnosis. It is always better not to take risks and go to an expert to help you.
Steps to fix the check engine light on a Ford Expedition
If the light comes on, it means that your vehicle’s control module has detected excessive production of polluting emissions. Basically, there is a high probability that you are consuming more gasoline than usual and polluting the environment.
If the light remains on continuously, this means that the fault is in progress. If it goes off and on, then the fault is intermittent, although the computer will save the code for later diagnosis.
Here are the steps you must follow to fix the Check Engine Light on a Ford Expedition:
1- Open the hood of the vehicle
You must locate the battery and identify the negative terminal of the battery. This is the one with the black wire attached.
2- Start unscrewing
Take a flathead screwdriver under the plastic cover that covers the terminal and start prying it loose.
3- Remove the nut
Put a 1/2-inch socket (or socket) on top of the horizontal nut of the same battery terminal clamp, then turn it counterclockwise. If the entire screw then turns in the terminal housing, you should hold the square head with the help of a 1/2-inch wrench while you turn the nut.
4- Loosen the terminal nut
What follows is that you loosen the terminal nut, you must make it so that you observe a space of 1/8 inch between it and the terminal itself. Next, you must move the terminal back and forth while applying firm upward pressure. You should continue to do this until the cable has no contact and is released from the battery.
5- Computer restart
What follows is to wrap the terminal in a clean, dry towel or shop rag and then place it next to the battery. It is necessary to leave it there for about five minutes. The computer should restart after three, but let’s leave it at five to be on the safe side. This should fix the Check Engine Light on your Ford Expedition.
6- Finally
To finish, you need to put the negative cable back on the battery and then put the cover back on.
What to do if the check engine light comes on in an Expedition?

If your check engine light comes on every time you start your car, it means your vehicle has a problem and you might need expert help. But how can we identify the problem? Newer vehicles (manufactured after 1996) have an OBD-II port under the steering wheel that allows us to read error codes.
With this information, your mechanic will be able to start the diagnostic inspection of your vehicle. By themselves, these codes will not indicate a precise problem, so it is necessary to inspect your vehicle to complete the diagnosis.
You should be careful, if the check engine light flashes, as the problem can be serious. You should stop as soon as possible, let the engine cool, and have your vehicle towed. Never ignore a flashing check engine light!
Don’t forget that minor mechanical problems become serious if left untreated. Regular preventative inspections are important to keep your vehicle in good condition by promptly repairing any minor issues.
Tips
This process will clear any active codes, but will not fix the problem that caused the light to come on. If this light comes back after doing this procedure, you need to take the vehicle to your local dealer to have the code looked at and diagnosed.
When you’re there, have them erase the saved codes, electronically reset the computer, and see if the fault reappears. Various auto parts stores will also do it for you for free, with the same result.
things you will need
The things that you are going to need to fix the Check Engine Light on a Ford Expedition are the following:
All Ford Expedition vehicles use the exact same computer program and set of codes for recording and diagnosing engine failures. Such a set of codes is popularly known as OBD-II, or On-Board Diagnostics, Series 2. It is through this system that the check engine light is activated. The Check Engine light indicates that there is a problem with the engine. Discover here how to fix the check engine light on a ford expedition.
As its name implies, the OBD-II program is in charge of fully monitoring the engine through dozens of sensors in order to warn the driver if any of them exceed the pre-manufactured parameters. If perhaps something is wrong with the engine, the computer will turn on the check engine light (CEL).
What Does the Check Engine Light Indicate on a Ford Expedition?

The Check Engine light can indicate various problems, some more serious than others, here are some:
Drivers often ignore their Check Engine light, thinking the problem is minor. Nevertheless, it’s hard to know what’s wrong with the engine without performing an accurate diagnosis. It is always better not to take risks and go to an expert to help you.
Steps to fix the check engine light on a Ford Expedition
If the light comes on, it means that your vehicle’s control module has detected excessive production of polluting emissions. Basically, there is a high probability that you are consuming more gasoline than usual and polluting the environment.
If the light remains on continuously, this means that the fault is in progress. If it goes off and on, then the fault is intermittent, although the computer will save the code for later diagnosis.
Here are the steps you must follow to fix the Check Engine Light on a Ford Expedition:
1- Open the hood of the vehicle
You must locate the battery and identify the negative terminal of the battery. This is the one with the black wire attached.
2- Start unscrewing
Take a flathead screwdriver under the plastic cover that covers the terminal and start prying it loose.
3- Remove the nut
Put a 1/2-inch socket (or socket) on top of the horizontal nut of the same battery terminal clamp, then turn it counterclockwise. If the entire screw then turns in the terminal housing, you should hold the square head with the help of a 1/2-inch wrench while you turn the nut.
4- Loosen the terminal nut
What follows is that you loosen the terminal nut, you must make it so that you observe a space of 1/8 inch between it and the terminal itself. Next, you must move the terminal back and forth while applying firm upward pressure. You should continue to do this until the cable has no contact and is released from the battery.
5- Computer restart
What follows is to wrap the terminal in a clean, dry towel or shop rag and then place it next to the battery. It is necessary to leave it there for about five minutes. The computer should restart after three, but let’s leave it at five to be on the safe side. This should fix the Check Engine Light on your Ford Expedition.
6- Finally
To finish, you need to put the negative cable back on the battery and then put the cover back on.
What to do if the check engine light comes on in an Expedition?

If your check engine light comes on every time you start your car, it means your vehicle has a problem and you might need expert help. But how can we identify the problem? Newer vehicles (manufactured after 1996) have an OBD-II port under the steering wheel that allows us to read error codes.
With this information, your mechanic will be able to start the diagnostic inspection of your vehicle. By themselves, these codes will not indicate a precise problem, so it is necessary to inspect your vehicle to complete the diagnosis.
You should be careful, if the check engine light flashes, as the problem can be serious. You should stop as soon as possible, let the engine cool, and have your vehicle towed. Never ignore a flashing check engine light!
Don’t forget that minor mechanical problems become serious if left untreated. Regular preventative inspections are important to keep your vehicle in good condition by promptly repairing any minor issues.
Tips
This process will clear any active codes, but will not fix the problem that caused the light to come on. If this light comes back after doing this procedure, you need to take the vehicle to your local dealer to have the code looked at and diagnosed.
When you’re there, have them erase the saved codes, electronically reset the computer, and see if the fault reappears. Various auto parts stores will also do it for you for free, with the same result.
things you will need
The things that you are going to need to fix the Check Engine Light on a Ford Expedition are the following: