I went to start my truck this morning at about 30 degrees and it was very slow to start (Not plugged in) so i went back in the house and let it idle and came out ot go to school and there was a puddle of diesel fuel in the drive way. What is this from?? it has always ran fine until now.

 

my crystal ball says - leaking rubber fuel lines, probably on the return side ... start 'er up and poke your head under the hood to find out exactly where ...

 

Okay thank you I will take a look!