Thanks again man. Best part is that I sold this truck to my neighbor and I felt obligated to fix it. Thank god that you posted this otherwise I and he would have been screwed.

 

Glad to see you found it to be a loose fuse, sometimes the fuse box itself needs to be replaced if the fuse area becomes damaged or loose. This could be done economically with a trip to the parts yard for a scrap one in good working order. Good luck for your friend.

 

Just had this issue with my 2002 F250 4WD 5.4 V8. All my fuses and relays were good. Went to pull cam sensor, and water temp sensor... checked coils for voltage, found none with the key on. should show 12V at coil. Final analysis, in MY case, it turned out to be a three volt voltage drop at the positive battery terminal. I aborted the stock terminal, which was comprised of this terminal block with three red cables coming from it. one from alternator, one to starter, one to ....wherever. I replaced that with a honkin' aftermarket battery terminal, cleaning both pos and neg terminals on the battery. Truck fired right up. I'll post pics if I can figure out how....

 

This why volt meters are made for checking where voltage is and is not.
Good luck.

 

Hey everyone I'm new here but hoping to get a response, I've got a 1997 f150 4.6 and it started doing this thing with the the blower motor where its on but it only blows out the defrost vents but nowhere else and only hot air. Help please

 

Start a new thread with a title about your problem. You posted in a "won't start" thread. At the top of the main page there's an orange box with a plus sign that says "New Thread". Click it.