High pitch noise when turn key to start / engine not turning over

NO START ??????? When you turn the key to the start position , nothing happens ? Or the engine spins an doesn't start an run ?

Re: 2001 V10 FUEL , MY TRUCK WONT START AND WHEN IT DID...
Yesterday I found the negative cable had fell out of the post terminal. fixed that jumped the battery and got it to start. ran for a while, then shut if off and started again this shortly after. started fine. woke up this morning to the same problem. tried to jump. interior light won't even illuminate with jumper cables hooked up

This video describes the problem here perfectly, it is an easy cheap fix.

does the engine turn over?

Does the engine crank but just not start? Or... are you cycling the ignition switch without trying to crank the engine? Based on the information you have given, I would first guess that the fuel pump may be going out. I say this because when you first turn the key on the pump primes the engine with pressurized fuel. If the pump is getting old, it may take a few power cycles to get it going. You can test this theory by having somebody listen near the rear of the car while you turn the key on for the first time. The fuel pump make a faint, yet distinctive high pitch noise that can be heard when you turn the key on. Try that first. Next thing you would try is checking the relays for proper function... starting with the fuel pump relay. Good luck.

ok mine did this untill i got an air pocket out of the coolent system then it was find.

fast high pitched noise? never seen or heard of this, done 100's of belts, this noise is caused by a belt being adjusted to tight, belts just break. do you have fuel pressure, what engine do u have?

I had this same problem.. i just had to remove the key.. but to permantently stop i had to replace both door sensors.. because it was not sensing they were both shut then the light would stay on and the dinging would continue until i removed key and or fixed this... this may not be the problem but might help..

Did you remove the faulty cable and replace it with a new one? sometimes a cable can be so badly corroded it's rendered useless, as the corrosion can travel all the way along the cable, if you have a multi tester check the resistance ( Ohms ) using the top and end of the affected cable, you should get a high pitched sound when you connect both ends ( to the meter ) thewad001

Did you get the right starter? Did you put the starter straight? Did you lock the screw evenly? where this noise from?You mentioned the noise like high pitch grinding noise, is it from the starter area or flying wheel?