2008 Dodge Grand Caravan tires problems

I am a mechanic of 25 years experience and feel the need to report a possible defect that exists on 2008 dodge caravans. During the last five months I have replaced three tire pressure monitor system pressure sensors. What make this problem alarming is that all three failed in the same manor. The failure occurs when the portion of the sensor called the valve stem fractures and detaches from the rest of the sensor causing a sudden loss of air pressure in the tire.

The tire valve stem made of a single piece of aluminum corrodes at the base of the threads at the end of the plastic cap. This leads to the sudden release of air and can happen while driving orwhen handling the tire valve, e.g. When adding air to the tire. This has now happened to me twice, once while I was driving, and once soon after adding air to the tire. The tire was damaged in the first incident and had to be replaced.