I bought a used Ford 2007 F-150 super crew cab 4X4. New tires were put on by the dealer. I have had three separate incidents of the tire valve stems breaking and causing deflation while in movement. After two breaking I went to the dealer and complained. I was told they had no reason or complaints of this occurring.while traveling out of state I had a third stem break. Each time I had new stems replaced. I began researching for myself and found an article which stated that Ford had complaints of defective valve stems on almost all their vehicles including Mercury's. after two attempts and complaints to my dealer I went to a local tire distributor and they recommended replacing all rubber valve stems with brass high pressure valve stems. After doing this I have not had a problem. The cost for rubber stems are around $1.50 each and I paid $6 each for the good stems. This is a small price to pay for you and your family's safety. My dealer still hasn't contacted me with a suggestion as to correcting the problem. First incident was around April 5, 2010 and second incident August 24, 2010 and third was October 18,2010.

- Greeneville, TN, USA

Tire valve stem failure on my 2007 Ford F150. I've received Ford's safety notice 5 months after one of my tire valve stems have failed. Their notice gave no indication that they intend to replace the defective valve stems. Their remedy as outlined for correction of the problem by monthly inspection of valve stem is far from corrective or preventive. I had very recently checked tire pressure, and inspected tires, valve stems, and lug nut torque prior to a long trip when my valve stem failed. Fortunately their was not an accident related to this failure. However, if there have been other accidents related to this problem: You may contact me for any litigation testimony.

- Harker Heights, TX, USA

The contact owns a 2007 Ford F-150. While driving 30 mph, the contact noticed that the front passenger side tire was losing air. She took the vehicle to a repair shop and the mechanic stated that they could not repair the tire. The valve stem had a sensor, but it was cracked. She took the vehicle to the dealer and they repaired the tire and replaced the valve stem; however, they would not replace the remaining stems. A report was filed with the manufacturer and they stated that the stems were not damaged; therefore, the dealer did not need to be replace the stems. The valve stem information was unknown. The current and failure mileages were 25,000.

- Norman, OK, USA

The contact owns a 2007 Ford F-150. While driving approximately 68 mph, the front driver's side tire rapidly lost tire pressure. As the contact was changing the tire, he noticed that the valve stem was cracked. The tire was replaced and he is in the process of notifying the manufacturer. He still has possession of the failed component. The equipment and tire information was unknown. The failure and current mileages were 26,183.

- Christiansburg, VA, USA

I just want to report that on my 2007 Ford F-150 pickup I have had three valve stems break causing flat tires. I am 56 years old and don't think I have ever had a valve stem break like this, much less 3. when I did an internet search on this problem it looked as if others were having the same problem because of faulty chinese made valves, I just thought I needed to report it, I felt this could be a dangerous situation.

- Belton, TX, USA

On October 18, 2008, and while driving from collinsville, Oklahoma to wichia, Kansas to attend a wedding, the "low tire pressure" warning became lit (and was accompanied with an audible alarm). Upon arriving at the destination, it was noted that the rear passenger side tire was extremely low (approximately 10 psi). I went to the nearest convenience store and attempted to fill the tire (costing me 75 cents). I noted that the valve stem was leaking air as I filled the tire. Since I had a long return trip home, and it was late in the day, I drove next door to Firestone complete auto care at 2318 N. maize rd, wichita ks, ph: 316-773-2900, at 4:48 pm to have the valve stem replaced. They subsequently replaced the valve stem (total cost of $26.55) and I was back on the road an hour later at 5:49 pm.

- Collinsville, OK, USA

The contact owns a 2007 Ford F150. The vehicle has tech international valve stems, model TR414. The contact stated that both rear tires blew out due to faulty valve stems. He replaced all but three tires on the vehicle and recently discovered a recall for tech international valve stems. Updated 11/10/08 the consumer replaced the valve stems on all of the tires. Updated 11/13/08.

- Rochester, MA, USA

Tire leaking from faulty valve stems.

- Kendall, NY, USA