2003 Ford Expedition Check Engine Light Reset

The first step in troubleshooting the check engine light is to read the fault codes with an obd ii scanner.

2003 ford expedition check engine light reset.

My check engine soon light is on. Now it is all resolved but check engine light remains on. Locate the diagnostics port under the dashboard of your ford. How to reset a ford expedition s check engine soon light by richard rowe.

1997 2006 expedition navigator resetting check engine light hello everyone. If it goes off the problem is intermittent but the computer will store the code for later diagnostics. Does anybody know how to reset it. In some cases you need to pull over immediately to prevent damage while in others you merely need to tighten you gas cap next time you stop in order to reset the service engine soon light.

Car is running fine. I own a 03 expeditition eddie bauer. If the light stays on the fault is ongoing. I recently had the displeasure of dealing with the coil issue.

The on board diagnostic computer or obd computer throws an error code that is stored in the computer which triggers the check engine light to come on. 2003 expedition 5 4l engine. A check engine light can indicate a broad spectrum of problems with your 2004 ford expedition. Connect your obd ii scanner into the diagnostics port.

If anything goes wrong with the engine the computer will illuminate the check engine light cel. After you have fixed the problem or completed maintenance you must use an obd reset tool to reset the check engine light. How do i reset it.