Hi All,

I tried to do a search but did not find anything. The "Service Engine Soon" light came on. Does that mean the computer has picked up a trouble code? How should I diagnose this? 2000 F-150 SCrew, 5.4 Triton. My truck is at 101,600 miles. So far it has run and drives great. Please advise F-150 Gods. Thank you.

 

The next step is head to Auto Zone and get the code read. They do that free of charge in most areas.

 

your welcome.

 

Except California, last I heard.... which is where he is at.

If the light is on and there are no apparent drivability issues, then it is most likely a detected fault in one (or more) of the emissions sub-systems.

Only by reading the fault codes will you learn what the fault codes actually are. This may require your either purchasing or borrowing a scan tool or by taking it to a shop for scanning. Very basic code readers start at about $40 on ebay or at Harbor Freight, about $65 at Walmart. Once you have the fault code(s), you can THEN begin your diagnosis.

Steve

 

Most of the time when you pass the Auto Zone in town here - the guys out in the parking lot reading peoples lights lol - buzzing around with orange scanner in hand..

 

Thanks guys. I guess I'll purchase an auto scanner. Ford charges $75 to diagnose the code. I might as well buy the scanner and check it myself. I hope it's nothing serious. I'll post what I find.