I recently had Kumho Ecsta ASX 225/50/16 installed on my '98 SE in Jan. '05, fast forward to March, and one of the tires (right rear side) went nearly flat. There was no nail that went into it to cause the pressure to drop so sudden. The left rear passenger tire went just as low, however the fronts were fine, despite the driver's side tire up front needing some air, but not as bad as the rears. Inflated to 32psi. I went to Discount Tire for the tires and I purchased the warranty. Would it seem that I had bad tires put on in the rear and have Discount Tire check them out and possibly replace them w/ the warranty? or wait a while to see if either of the rear or any of the front tires go down again?

 

check the valve stems and around the bead for a good seal.

 

Don't wait too long, they might try to say "Now they're out of warranty"