My left rear tire lost air while driving down the highway. After several attempts to put keep air in the tire I realized it was the valve stem. I put air in, would hold air when stopped and at highway speed would go flat again. I changed that valve stem, four days later the same thing happened with the left front. This time I checked the others, in the end, all four valve stems were cracked and two failed allowing the tire to lose all air and go flat. I have Goodyear F1 supercar tires and 15,800 miles on the car. The valve stem is the ti 414.

- Grovetown, GA, USA

2007 Ford Mustang recall notice about the tire valve stem being recalled due to cracking. Took the vehicle to the dealership, they took about 5 minutes and looked at the valve stems and said they were fine. Few weeks later we got a low tire pressure sensor warning. Went back to the dealership. They said the right rear tire just had low air pressure, they put air in it and charged for their inspection" the next day the light was back on....went back to dealer, they said the sensor is unreliable and they see nothing wrong so we had them balance and rotate the tires. Oct 4th driving 65 mph down I-20 right rear tire blew out; almost lost control of car, ran out across the grass to get the vehicle stopped and under control. Took the tire to the dealer the next morning; they say is blew because it was low in air??? no low pressure light" they already worked on the same tire 3 times...they still refuse. Took tire to a tire store: Facts are: Tire valve stem is cracked and was on the recall, air leaked out suddenly and the tire exploded! they also mounted weights on the outside of the mags when they balanced the tire, one weight was actually dug down into the rubber, also, possibly causing the air leak. We had all valve stems replaced, all four were cracked and we found out the only way to truly inspect them was to remove the tire off the rim which the dealership never did do. We are out $275 for two tires, valve stem replacements, balancing and the labor for all this that should have been repaired and handled by the dealership for free due to the recall......not to mention that if he had flipped that car and gotten killed what we would be facing. Poorest customer service I have ever seen; dealership should be shutdown by dmv for safety violations and not properly handling a recall notice. (we had to replace two tires because they have 30,000 miles on them and we did not think it would be a good thing just thing to put one new tire on the car!

- Lugoff, SC, USA

Low tire pressure sensor comes on after a couple of weeks of airing up tires I took to Ford who said tires where overinflated so the set it back to the correct air pressure only to get the light back on in a week. This is a serious problem because tires can be over inflated which could cause the tire to explode or cause extremely quick tire wear.{either by over inflating or the low tire pressure} these tires are over inflated only to keep the tire pressure light from coming back on. I also brought up to Ford service dept. About the valve stem issue I read, but the looked at me like I was crazy. Nobody there heard of that. I am just 1 person but I have a small child and don't want this issue to cause a serious accident thank you

- Palmyra, IN, USA

My 2007 Ford Mustang was shipped without tire air pressure sensors. When I took it to the dealer they wanted me to pay for sensors.

- Laguna Beach, CA, USA

Three (3) tires will not hold tire pressure; have to be inflated 3 to 5 times per week to maintain tire pressure.

- Bethany Beach, DE, USA

I currently own a 2007 Ford Mustang with 13,500 miles on it. Less than a year after I bought the car I had only 5,000 miles on it and my tire pressure monitor system went of on a mild September day. I pulled over at a gas station less than a block from when the sensor light came on and found the left rear tire valve stem was cracked at the base where it seats in the rim. I filled the tire and made it another block to a tire repair store, where they replaced actually two valve stems that were bad. I immediately went to my local Ford dealership where I bought the car and complained. I was told to call the tire manufacturer as if I was some dumb woman. As a woman working in a mans field as a mechanic I know that tires do not come with valve stems tires come as tire and I argued that with the dealership. They finally agreed to look at the car, and found that the tire going flat ruined the tire pressure monitoring system band and damaged the sidewall of the tire. They agreed to replace the tire pressure monitor band and ordered a replacement tire for me. Just a week ago with the 13,000 miles on the car I had the same problem again with the tire pressure monitor system going off and I immediately checked the valve stems and found another valve stem that was cracked apart. I went back to my dealership and they question why it was the left rear tire again as I replied that I had my tires rotated and then they asked if I had "curbed" the car or tires. I laughed and commented on the lack of scuff marks on the tires. Once again they relented and replaced the faulty valve stem at no charge. I am beginning to feel unsafe in my own vehicle and recall the issues that Ford had previously with tires and accidents. I do live in the midwest where there is a regular occurrence of snow and ice and I would imagine getting a flat going 55 on a local highway in the winter would be devastating.

- Moline, IL, USA

Tire valve stems cracking on new car, only 7 months old and all 4 tire valves where cracked. No accident happened and Ford replaced all 4. these are not the same that have been recalled recently. The car has the tire pressure monitoring system with special valves.

- Canyon Country, CA, USA