Remove the PCV valve and hold it near your ear. Shake it up and down. If it rattles, it is OK. If you hear nothing, it's time for a replacement.
I also have a 2002 Mustang GT with a bad PCV valve. It made a ticking noise while the motor was running then ticked for 3-4 seconds after it was turned off. A way to test if it is a bad PCV valve is to remove it and see if the noise stops. It is in the right head just under the intake hose. Lift it out and if the noise stops there is your problem. It's a five dollar fix.
unless real bad usaully do not make a noise but give bad vibration.
A bad cv joint/axle shaft on the front will make a clicking noise when turning.
A bad throw out bearing will make noise when the clutch pedal is pushed down.
If it rattles , then it means it's not stuck and is good!!!
If bearings go bad on a alternator/ will make a grindind noise or long squilling noise.. but if only electronic's inside alternator are damage no noise wil be heard
Yes they can make a grinding noise, if they are bad.
Yes. Remove it, shake it. It should make a rattling noise. It could be plugged up. Just install a new one. They only cost about 10 dollars.
Yes.
Engine choke and make noise if the Engine Oil is low. of if you got bad gas...
A bad harmonic balancer can cause a knocking noise. The harmonic balancer doesn't actually produce the noise, but it can cause the noise in the engine.
A bad alternator will make whats called a whirring noise. It could also make a low growl. This is just the bearings going bad. If your alternator is not supplying any power, it has nothing to do with noise typically.