My valve stem seems to be froze up , when i put my pressure gauge on it it doesnt do anything. is this common for this type of stem ? , and how do i get it out to replace it. it's a tubed tire, with a stem that doesnt screw out.
Thanks

 

You can R&amp\\;R the valve.Go to a auto store and by a valve remover tool.Replace with new valve.The valve will unscrew from the inside of stem.