Vehicle has been poorly serviced and maintained. Brakes should be inspected every service.
Worn pads, warped rotors.
The expedition door lock relay could be stuck causing the grinding noise. Check to insure that the lock relay is working properly.
If you are on a slippery road or just push the brake as hard as you can, that odd grinding feeling is probably your anti-lock brake system. The pedal will feel like it is grinding under your foot, accompanied by a grinding noise. this is a good thing, it means the system is working properly. If you aren't on a slick road or jamming the break, you should see a mechanic immediately.
One thing that can cause a clicking noise under the car is when the bar bushings get worn out on the sway bar. Also, it could be coming from the struts if strut oil is leaking. Other things that can cause a clicking noise if not working properly are the exhaust system and the transmission clutch assembly.
The brake pads are worn out and need to be replaced. The grinding sound means your brakes are about to stop working.
check to see if the outer or inner boots are torn and grease is coming out. when they start to fail the axle makes a clicking noise during turning.
click noise from glove box everything workin properly what is it
It will keep the temperature within pre-set limits if working properly.
it is ok to continue driving the vehicle while the catalytic converter is not working properly?
It depends on how the hard drive failed. If it just stopped working without making a lot of noise then it might be worthwhile to send it out and have it looked at. If it was making a lot of clicking and grinding noises you will probably be out of luck unless you want to spend a lot of money.
It could be hydraulic lifters that have collapsed overnight and need a little oil pressure to get them working properly again. If that's all it is, don't worry.
To check if RTD PT100 is working properly you need to check and make sure all the wires are connected. Take several readings and if they are the same, it is working properly.
The wiper motor may not be working properly or the combination switch may also be not working properly.