Tire keeps losing air pressure

[roughyear]

I have one tire that is constantly losing air pressure.. it's the same wheel that had a new pressure sensor installed when I installed new tires a few months back. I'm loosing about 1-2 PSI per week... dealer says he can not locate a leak. any ideas??

 

[kep5niner]

How old is the wheel(s)? Do you live in the Rust Belt? Pitting as a result of corrosion can occur on the wheel, at the tire bead, preventing a good seal, resulting in a slow loss of pressure. This has happened on two of my vehicles in the past, both after 6+ years. Unfortunately, the only resolution is wheel replacement.

 

[marctronixx]

take it to a tire shop and have them smoke it over. sounds like there is a nail/somesuch or the tire pressure stem is loose and air is leaking out there.