I drive a 2005 f150 5.4 with 191000miles. My truck had to be parked for a few months due to a few coils going out. So I recently just changed my spark plugs and coils found out cyl 3 the electrode was sitting on the ground strap. It is still parked because it has no power, when I press the pedal it is like it chugging a bit with no go. I took it aroumd the block and watched my temp almost go to red and to top it off i couldn't get it passed 25mph.
Anyone got any ideas?

 

My guess, truck went into limp mode

 

But how would I take it out of limp mode?

 

 

Sadly that didn't change it =/

 

 

How would I go about that?

 

 

It blows consistent but 25sec or so it sounds different and stops blowing for a few seconds then gos back to normal. The cats are not glowing red feel pretty hot though but no rotten egg smell.