I just watched a 'special report' on the local news. There are 30 million faulty tire stem valves on our tires.... Its the rubber tube/stem you use to put air in the tires... The report said that tires with the 'faulty valves' can cause a blow out... I automatically thought it would just cause a slow leak, but that's not the case...
Here is a link (from my local area) with pics. http://www.thebostonchannel.com/inve...94/detail.html
The valves were imported from China and can be on ALL/ANY Tires... I checked mine and had 1 bad one out of 4, it was on a fairly new tire, and the tire dealer replaced the valve no charge. My neighbor was checking his at the same time and had 2 bad out of 4... be safe... check them...
