2001 f150 4.6 v-8,auto,. Ok I was at work today ( 21 degrees outside) sitting my truck moved it across the yard and the heater fan quit blowing, got out the owner's manual, cannot locate a fuse for the fan in the fuse section, so I am checking everything I can think of and notice that the over drive light on the gear shift is on, push the button no change, end of the day I get back into the truck and head home, OD light still on and trans won't shift into drive, no surprise with OD light on, I get to drive 60 miles at 40 mph lol, so my question is does ford use electric solenoids to shift their transmissions, if so where do I look and how do I decide which one is bad, or do I have another problem?? Thanks for any help