Very carefully
Check engine light is out
On a 2002 Ford Expedition : The " check engine " light is the " SERVICE ENGINE SOON " light just to the left of the fuel gauge
Auto Zone will check your engine light for free... Write down the codes and go from there.
Auto Zone will check your engine light for FREE. They will also tell you whats wrong.
check gas cap replace if necessary check EVAP lines for leaks and replace if necessary. Clear engine light and run vehicle a couple of days and see if it goes away.
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
Auto Zone will check your engine codes for FREE. Then go from there.
According to the 2006 Ford Expedition Owner Guide : The " CHECK GAGE " light comes on if the engine coolant temperature is HIGH or the engine oil pressure is LOW
I would check the plug wires and the exhaust system.
Engine misfire. Possibly a bad coil or spark plug.
You will have to remove and disassemble the cluster
How do you replace the fog light located on a 2003 Ford Expedition?