7.3 powerstroke fuse
 

The #19 fuse on my 01 F250 powerstroke just blew and I don't know why. Its a 10A that protects the APCM,GEM,Idle validation switch etc. Why would it blow. I replaced the fuse and everything seems fine. I'm just wondering if I have bigger problems. Fuses don't usually burn for no reason. Can any one help?