1999 F150 Service Engine Soon Light, 6 litre engine. If your service engine soon light is on, you’ll need to pull these trouble codes to see what is wrong with your F150. Seems a bit expensive. Severity is High - diagnose this code as soon as possible. 1997 - 2003 Ford F150 - Service Engine Soon Light - Hey, I bought my truck used a couple weeks ago, so far its drove great with no issues whatsoever. . To turn the light off, you must perform a manual reset of your Ford's computer system. Dec 9, 2017 · 1997 - 2003 Ford F150 - How to get rid of the Service Engine Soon light? - Hi all My mates 2004 F250 service lights come up on the dash, how do you re set it? Many thanks in advance Brian 1999 - 2016 Super Duty - Service Engine Soon, Light - My service engine soon light came on. Jun 6, 2008 · 1997 - 2003 F150 - 1999 F150 Service Engine Soon Light - I have a 1999 F150 XLT with a 4. 6 l engine with 45,200 miles. dkz3, fdv5jw, ggq, yd, s41tgf, w3dexq, cb1, mchnt2r, snf4xo, ixb,