Tire Pressure Question

[jcphitman]

Hi Everyone,
I have what probably amounts as a stupid question, but I'd rather ask it so I can learn.

With recently fixing my tire pressure sensors, I noticed a few weeks later the light came on. Two of my tires (driver side rear and passenger side front) were low. I filled them up and for the past week and a half, the light was off. Tonight, the light came on. I noticed the passenger side rear was down to 25 PSI. Keep in mind this was one that I filled a week and a half ago. The air compressor got air in it and the light went off tonight.

Should I be worrying about the tire? Could it just be the weather change (I'm in Milwaukee ... it was cold when the light came on a week and a half ago, warmed up to the 70's, and now today dropped into a high of the 50's) or should I be concerned about something more? It does seem like a good length of time as I assume the light would come on pretty quickly after I filled air should there be a nail or something else in it. Just making sure though what I'm thinking is right.

Thanks in advance for any help/advice! Tires have never been good on this car, so I always worry when that damn light comes on, lol!

[Thud Slamrod]

Probably just the weather. Tire pressure sensor light is the one I ignore most.

[PoisonIvy]

Are you measuring what you filled it to? If you're filling to 32 or 34psi and it's dropping to 25, I'd guess you have a small leak. But if you're filling to just until the light goes out, you may only be dropping because of the outside temperature.