Not using premium fuel caused that in my 2004 Navigator.
It could be one of your vaccum lines that collapsed
lincoln navigator
Turn signal flasher module?
hellow just wonderin if you guys know where would be the heater core on my 2003 Lincoln navigator
brake switch located on the top of the brake pedal
That would depend on the year of your Navigator and Expedition. See the related link.
I would say NO ( I was looking at the 2001 Lincoln Navigator Owner Guide and it does not show anything about it having a cabin air filter )
It could be spark plugs or coil packs. Auto Zone will check your computer codes for FREE. This way you won't be guessing.
On a Lincoln Navigator : Bank 2 is the drivers side of the engine * sensor 1 would be close to the engine BEFORE the exhaust enters the catalytic converter
I would think that the most luxurious car is the Lincoln Navigator.
These are completely electronic. You may have a loose wire.