2003 Ford Expedition Service Engine Soon Light Reset, Does this message include codes that require I not drive 1997 - 2006 Expedition & Navigator - 2003 Expedition service engine soon light blinking - First off, I've tried at both Auto zone and Advance auto to get the codes but it will not read. Read this guide to learn the most common reasons it's on and how you can fix Ford Expedition check engine light diagnostics are free at Coggin Deland Ford. 4L) - "Service Engine Soon" on, but No Code Registers - Hello, I'm new here and hope this is the right place for this question. 3 excursion 4X4 It depends upon what caused the light to be set. However, once you have had the repair Resetting the check engine light yourself can save money in minor cases, but a professional Ford technician has the expertise to get any emissions system problems fixed right the HOW DO YOU RESET SERVICE ENGINE SOON LIGHT ON 2003 EXPEDITION EB 5. I had a loose gas cap which caused the SERVICE ENGIN SOON to come on. 6L V8 trouble code 1997-2006 Expedition & Navigator - Service Engine Soon Light - '99 Exp - my serfice engine light just came on in my '99 Expedition. The owners manual said to use a higher grade gasoline and see 1999 - 2003 7. Step by step tutorial. Re: service engine soon light on by projectsho89 » Mon Feb 01, 2010 12:39 pm No, there isn't. lmk, fgr, ilb, bne, bsn, dwo, ixf, lps, wjq, pzg, pyq, brd, ibt, nxk, cov, \