Working with the engine on

WARNING: To reduce the risk of vehicle damage and/or personal burn injuries, do not start your engine with the air cleaner removed and do not remove it while the engine is running.
1. Set the parking brake and shift to P (Park).
2. Block the wheels.
See also:
Signal indicator mirrors (if equipped)
When the turn signal is activated, the outer portion of the appropriate
mirror housing will blink. This provides an additional warning to other
drivers that your vehicle is about to turn. ...
Overview
Better handling, increased power, improved fuel efficiency, additional
standard equipment, more refinement and new technologies that help drivers
reduce accident risks provide luxury customers with ...
Cleaner air
Ford endorses the use of reformulated “cleaner-burning” gasolines to
improve air quality, per the recommendations in the Choosing the right
fuel section. ...
