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 soon light.
A check engine light can indicate a broad spectrum of problems with your 2004 ford expedition.
2003 ford expedition.
5 00 hrs 1 40 hrs 2000 ford expedition 5 4l v8 xlt.
Ford expedition check engine light diagnosis.
308 miles annemarie l july 13 2020 7 10 am el monte ca 91732.
If the light stays on the fault is ongoing.
Connect your obd ii scanner into the diagnostics port.
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.
Turn on the ignition by pressing the start button without pressing the brake pedal.
Locate the diagnostics port under the dashboard of your ford.
I have 2003 ford expedition the service engine soon light is on.
If it goes off the problem is intermittent but the computer will store the code for later diagnostics.
If anything goes wrong with the engine the computer will illuminate the check engine light cel.
How to reset a ford expedition s check engine soon light by richard rowe.