Your RPM's increase automatically to compensate for the additional load from the A/C. As the A/C compressor runs in defrost mode to prevent fogging, the same will happen there. It's just your electronic engine controls maintaining the correct idle RPM.
I have a expedition a 1997 expedition to be exact and mine has the the not right next to that sometimes are you have to do is you have to stop and then you put it in neutral. Then you turn it to 2 wheel drive And that's
The 1997 Ford Expedition owners manual shows that fuse # 1 in the junction box ( interior fuse panel ) is a 15 amp fuse for the stop / turn lamps
Did you happen to check the inner passenger kick panel, where your feet would go? There may be a switch to turn it off down there, don't know if that helps at all....
On a 2002 Ford Expedition : Turn your low beam headlights on and then pull the headlight switch out towards you to turn on the fog lights
2003 ford expodition steering wheel is hard to turn.
Auto Zone will check your computer codes for FREE. It maybe as simple as plugs,wires, or coil packs.
The torque for the 1997-2000 Ford Expedition ; Oil pan drain plug is; 16-22 ft.lbs. [22-30 Nm] So it may be the same for the 2001. When, I replace my oil pan drain plug on my 1998 Ford Expedition XLT. I snug it tight and then turn around 1/4 to 1/2 turn. No more no less. Don't want to strip it.
spray WD40 in the door latch mechanism, it will sometimes get stuck and the lubricant will free it up to engage when the door is closed.
On a 2001 Ford Expedition : Just to the right of your headlight switch in the dash is your gauge panel dimmer switch . Rotate that all the way down ( past detent ) to turn off the interior lights
On a 1997 Ford Explorer : The push button switch to turn on and off the fog lights is in ( the center stack of the dash , to the right of the radio )
maybe a fuse
Add more blinker fluid.