It needs a new washer in it.
either right below the toilet or if you want to shut it off before that valve you have to shut off the water before it goes into the house.Depends on the type of "toilet"A tank and bowl or a one piece normally has a shut off on the left side below the tank.A flushometer type has either a knob or an angle valve that needs a flat screw driver to shut it
Shut the water off at the main shut off where it comes into the house or at the meter and change the valve at the fixture. The valve at the fixture may be sweated on, compression, or threaded.
Make sure your main water is turned on by turning on another sink or bath and if it is then turn your toilet valve off and on a couple times and see if any water comes out in your tank. If still no water is filling the tank then shut off the valve and take the supply tube off the valve and turn the valve on slowly to see if you have any water comming out. If still no water then your valve is plugged or your pipe to the valve is plugged which then you would need to clean out your valve or lines with the whole house water shut off. Sometimes I have seen that the plug is in between the valve an supply pipe connection and as soon i take the supply pipe off and turn on the valve it works just fine even when I put the supply pipe back to the toilet. I don't think it would be in your fill valve in your toilet tank unless you have pressure assist tanks and with them all you need to do is take out the screen inside them.
The shut off valve.
== == Two possible problems............... The main shut off valve in the house is closed from the in-coming city water supply line, or the city supply line is shut off at the street .
There should be shut off valve called an angle stop towards the floor on the left side of your toilet. If you shut this valve by turning it clockwise this will stop the feed of water to the tank of your toilet.A:Your float valve may be defective or worn out
Shut the water supply off to the toilet. Flush the toilet. Pull the old flapper out and replace it with the same type. Turn the water back on and test the toilet.
The washer in the shut off valve has probably split or come off completely over time.
not enough info to answer the question 1. Shut water off at wall. 2. Flush toilet to drain excess water from tank. 3. Remove supply line from bottom of tank.........
Adjust the flushometer / Fill valve / flapper
The only place that sound would come from would be a valve being closed. The only valve is the one in the tank. Replace the valve and this should eliminate that noise. To check this out try closing the water shut off part way and see if noise changes or goes away.
If it is just the toilet that doesn't have water, then the pipes are probably not frozen. If it is the whole house than maybe yes. If you have water at other faucets, look at the toilet and see where the blockage is. Disconnect the supply line under the tank and see if water is coming through the shut off at the toilet if there is one.