Check owner's manual. If you don't have one copy and paste link below; www.fleet.ford.com/maintenance/owners_manuals
Add more blinker fluid.
Change the front turn signal light bulb. It's bad.
It is still under warranty. Dealer's problem.
change out the bulbs......
yes... provided the connectors the same
most likely the turn signal flasher, located under the steering column to the right.
Under neith datch to the right of steering colnm
Under the dash on the driver's side mounted in the fuse panel.
lol ask someone that works with car?
Trouble code P0318 means: Rough Road Sensor A Signal Circuit
Ford Expedition was created in 1997.
It could be a fuse. You would have to find out what fuses work on which accessories. It could also be the turn signal switch.