Sometimes it is a manufacturing defect. Sometimes it is a "goose egg" caused by a belt slipping. If you do not trust the tire dealer you are talking to, go to a Firestone or Goodyear store. Most are legitimate dealers and will be happy to advise you.
nail in tire, or rock
Yes it could do that. It would be close to separating into two pieces.
What could cause a rattling at t he drivers side back tire..
your brake pads could be worn out.
well, when you drive with any of the four tires being low you will cause it to over heat, or it could be making a lot of sharp turns.
if its at the front, radiator or hose, if its closer to the tire could be overflow tank or cap.
they hit the walls/side of the tyre and that builds pressure
Tire out of balance is the most common cause.
uh yea it does
Passenger side rear tire? Someone is doing burn-outs.
You could have blown your tire or it could have gone flat.