Alrighty...my "Service Engine Soon" light came on this morning (I'm at college right now and I left my programmer...so no way to read error codes). Just looking at the gauges...I think I see what the problem might be: my temp gauge wont rise more than about a quarter of the way up (barely going over the image on the guage).

I know my truck. It doesn't run that cool. Hell...I don't know any vehicle that runs that cool.

So, I think it's the thermostat...I ordered one from the Ford dealership down here and will replace it tomorrow. I mean...it was $13...so I figured I might as well try before driving over one hundred miles back home. The dealership wasn't one of the SVT ceritified, and the guy behind the counter said he'd never seen a Lightning before and didn't know Ford ever made one.

I'd rather push it back home before letting them even look at it from a distance.

What do you guys think? Could it be the thermostat? The truck runs fine though...(it isn't smoking yet lol)...is it safe to drive it a hundred miles?

Thanks guys!

 

make sure the rad has juice in it, good luck

 

Problem solved...it was the thermostat...

 

Cool! Stuck open for sure.


Dan

 

But after you changed the stat did the SES light go out ???

 

Nope, I had to clear it with my programmer. But, the light hasn't come back on.