Leaking tires

I have a 2003Touring and all four of the tires leak air. I have to add air every other week. Three of them are a few pounds but one is about ten. The dealer has never heard of this problem and they have been check for leaks and the dealer said there just fine and not leaking. I just would like to know if anybody else has this problem.

Check the tread area, bead and around the valve stem with water,If the water bubbles there is the leak.It might be a simple such as a nail or screw in the tread area or a bad valve stem.

Check the tread area, bead and around the valve stem with water,If the water bubbles there is the leak.It might be a simple such as a nail or screw in the tread area or a bad valve stem.


Thanks for the reply. It turned out to be a small nail in the one tire but I thought it was strange that all four tires needed air. I broke down the other three tires and put bead sealer on them and I think that took care of the problem. Thanks again.