One of the tires on the XJ6 will not allow me to add air to that tire. I was attempting to bring four tires to 35 pounds. I can delete air as normal in this tire by depressing the pin in the center of the valve, but not add. I can ad air the other three tires. I am using a tool as one would fine in a service station to measure the pressure. When adding air to the other three tires, I can near the hiss of the air inflating the tire. No sound from thIs one
I tried increasing the air pressure from the hose to 50 pounds but no luck.
What to do?