i have an '04 disco SE with roughly 40k miles on it. anyway, last night while driving the service engine soon light came on. from what i can tell nothing feels wrong, truck drives like normal. does anyone know what this could be? thanks in advance.

 

With over 300 faults codes to pick from, who's to say. Go to you local Auto Zone type parts store, they will read the codes for free, do it today just incase there is something major going on, then get back to us with the 4 diget fault code number and what they sais and then we can help you.