Key ignition key has a chip in the key, if the chip does not match the signature the car is looking for, it will not start - this is an anti-theft feature. The key can be programmed from one of your other keys, or by the dealer.
SOURCE: Problems with Gearshift 2004 Lincoln Navigator
Turn the key forward a notch then it should come out. If you are turning the key all the way off it enables the accessories (radio etc), locks the key in the ignition and disables the gear shifter.
If thats not the case then there is a button to be depressed so that the key can turn anticlockwise>off another click and the key can be removed.
It'll be one or the other....faulty ignition lock is the only other diagnosis
SOURCE: How do I close the rear side windows in a 2007 lincoln navigator?
the switch is located in the overhead console.
SOURCE: my 99 lincoln navigator won,t start.The dash
make sure it's all the way in park. push the lever and turn the key at the same time.
SOURCE: The rear a/c is making a clicking sound/2003 Lincoln Navigator
you have a bad blend door actuator the clicking sound you hear is the plastic gears inside it slipping the panels covering rear unit can be removed once removed cut a/c on once clicking starts you should be able to tell which one it is they are about the size of a cell phone usually twoo or three screws holding on to air box and one small electrical connector remove and call ford dealership with part# listed on the actuator and purchase new one these are not available aftermarket that i know of
SOURCE: I have a Lincoln town car1998 my Car won't start i
You say t pump is coming on, but do you fuel coming up to the fuel injector rail? You can check for fuel by pushing down the valve located at the left front side of fuel rail. It looks like a tire air fill stem. Be very careful as fuel is under 40 psi pressure and can spray all over the place. do this with engine OFF and have a rag to cover the valve. Just press with tip of screwdriver and be sure valve is covered. If a little gas come out,you know you have fuel. If not gas then check fuel delivery system i.e pump, filter, lines or pickup tube.
If there is fuel in the rail, then there is most likely a problem with the control module (computer).
Check for fault codes with an OBD II reader. You can usually rent one at your local part store. You can look up fault codes to find out where the problem might lie.
More questions, just leave in comments.
Good Luck.
J
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