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tire valve / pressure sensor
I bought a 2008 Grand Prix in April 09, it has 31000 kms,not long after buying it, every two weeks the front right tire would go soft. Thinking I had picked up a nail or something I left it untill today to have it looked at, I went to put some air into it and noticed the valve stem had corroded and was broken in two,I took it back to the dealer I bought it from, to be told it was not covered in the factory warrenty but they would change for free out of their goodness.now I am worried about the other 3 tires so I coated the stems with vaseline for protection,any other suggestions ?(I live in Ontario Canada)
hmm, a 2008 you say? It shouldn't have been corroded to that point in only a couple of years. What most likely happened was the car was parked by someone who didn't know how to drive and it was damaged on a curb. Just make sure to keep your eye on the tire pressure, the others shouldn't be a problem, however, when you have the tires replaced, you should probably have the valve stems replaced as well. It would cost a little extra cash, but better safe then sorry.
having examined the position of the valve stem,and the wheel rim, which is a nice sporty polished alloy there is no sign of driver abuse, I was hoping this was a one off situation but the new stem seems to be a complete different design, when I talked to our local tire repair shop he told me this is a common problem with the the design of these years .

