I don't have the problem with braking as Kelly does, however, I have the exact same issue with turning in my driveway, going over bumps and making sharp turns where the metal grinding noise is so loud you'd think the car was going to fall apart. Thousands of dollars later and no resolution. Has anyone else had this issue?
If you have not had the cv joints checked or the "U" joints checked I would do that as what you describe is a joint that is binding up under load or turns.
SOURCE: 96 lincoln town car- loud humming noise
I had experienced the same problem with my 93 TC. I'll try to make it short. Replace the Idle Control Valve. Cost me $50 at AutoZone. It has a electronic plunger that has a rubber o ring on the end of it. It separates two air chambers inside the valve. When the rubber gets old and the plunger is suppose to cut off the air coming in from one chamber to the other, the air gets sucked between the chambers across the old rubber causing the humming noise. That is also why the engines revs up and down and wont idle right. It is located between the firewall and the back of the motor just to the left (drivers side) of the throttle control assembly. When you look up on the internet on how to replace it, it will tell you to remove all the housing surrounding the wiper blade control arms and assembly so that you can access it. If you take your time, just remove some of the hoses and wires connected around it and you can access it without removing all that ****. Only has two screws to it that point up and can be reached with a ratchet and extension. Car runs great now and finally got rid of that noise.
SOURCE: can't find exterior temperature gauge in 2008 Lincoln Nav. L
Page 106 from the owner's manual. It says (if equipped), it's in the MESSAGE CENTER. Press the INFO button (you should see 3 buttons INFO, SETUP, RESET, pressing INFO will toggle the odometer display between a number of things like odometer, distance to empty, outside temperature, etc.
Good luck, if you still need help don't hesitate to stop by your local dealer and have them show you.
SOURCE: 2000 lincoln navigator wont start its not the battery,altenator
If it starts, even after turning motor off (immediately) while the engine and ambient temperature are quite warm, it could be the starter relay (which is inexpensive), a starter- not inexpensive- a neutral-safety-switch, or an host of other electronic problems that Navigators/Expeditions are notorious for tormenting their owners.
The relay is what I finally was able to have fixed- and it was only $56 to have an independent shop do it.
Good Luck!
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