I have a Kenmore Gas Dryer Model 110.70722990
. I just changed the thermostat, that however was not the problem.
When you first start the dryer it will run fine. After the heat shuts of the first or second time, the ignitor will turn on but the gas will not. It makes a funny sound, (almost sounds like a screw bouncing around).
I have cleaned out all the lint from the vent, inside the dryer, etc.
I now have the feeling it is the gas valve coils, though I do not wish to buy anymore parts unless I know that is what it is..