Pay a Ford dealer to have them read the code, usually about $75-$100 (2008 money) or bring to Auto parts store to have them read for free or buy your own a code reader. Dealer's code reader is far more sophisticate than the one at the Auto parts store, it could retrieve the erased codes, or any past history that is stored in the car computer.
Auto Zone will read your computer codes for FREE. and then go from there.
Get the codes read. Auto Zone will check your codes for FREE.
Hook up a laptop with the appropriate software to read Cat fault codes.
Have AutoZone check for codes (FREE). It may be a bad coil pack...
Auto Zone will read your codes FREE. They will tell you what is causing them to come on. This way you can fix your problem without having to guess. They will or can reset your codes if you ask them too.
Auto Zone will check your engine light for free... Write down the codes and go from there.
Check owner's manual. If you don't have one copy and paste link below; www.fleet.ford.com/maintenance/owners_manuals
Auto Zone will read your computer codes for FREE. And if you ask they will also erase codes. After getting correct codes and finding out exactly what is wrong. Then go from there.
In order to find instructions on how to read the fault codes of a 2000 Freightliner FLD 112 with a C12 engine you should go to heavydutypowertrain.com where they have an extensive selection of instructional material including how-to videos.
How to change freeze plugs on 2000 expedition
It giving you some kind of code. Have your codes read.
The Expedition was created in 2000-10.