Tire Valve Problems of GMC Envoy

One morning, I had a flat tire, the tire was taken off the vehicle, and taken to sears auto center. Visual inspection revealed no punctures or reason for the flat. Further inspection showed the valve stem had a large crack close to the tire itself. Needed to replace the valve stem. Brought vehicle home, and left in garage for the weekend, when taking the vehicle out of the garage on Monday morning, thought the steering was not as usual. Stopped the vehicle, and saw another tire was going flat. Then checked the other three tires, and saw all three valve stems had cracks in them. Vehicle taken to firestone auto care for replacement of the valve stems. The tires had been replaced on the vehicle in November, 2007. Although the repair shops did not say why valve stems would have failed in such a short time of each other, I wonder if this may be part of the safety recall done for defective parts from dill air controls. Although the tires were purchased after the date indicated could there still be defective valve stems which were still being used on tires? sears only said the valve stem was not covered by warranty.

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On 6/3/2008, I purchased 2 michelin ltx m/s 245/65/17 tires for my 2003 GMC Envoy from, millennium autobody & service inc. , 1782 main st. , brockton, MA 02304. On 10/22/2008 (after only 7969 miles) the tire blew out on the way to FL- had it been replaced in NY. The tire was shredded. On 11/10/2008 (after only 9557 miles ) the 2nd tire went flat- I was able to pull the SUV over quickly recognizing the same sounds and vibrations from 1st blow out. This tire was not shredded. There was no punctures/ cuts to the tire. The clerk at the tire kingdom in FL stated that it was a faulty tire valve stem that had caused the tire to fail. I called home, and my family advised me that there had been reports of bad valve stems on trucks and SUV's. I contacted the location where I purchased the tires to report the two tires failing- they requested that I bring the tires back when I came back to MA. I did not have the 1st tire- but I did get and still have the 2nd tire. Millennium autobody said they were going to talk to tire rep and get back to me- but it has been several weeks now and still no word. I was very fortunate that no one was injured during these 2 events- I fear that there are still faulty tire valves out there- that other consumers may not be aware of them.

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