i have a 2010 accent about 5 to 4 months old now and just recently the psi would reduce overnight drastically. from 32 psi to around 18 psi. theres nothing wrong with the tires. the psi light came on a couple weeks back but i put the right amount of air back in; and just recently it happens everyday overnight. any help would be appreciated.

 

Is it dropping that much on all four wheels or just one? If it's one, you definitely have a leak in that tire.

 

its just that one, its the rear right tire. i checked the tire but not thoroughly; from what ive seen the tire looks fine.

 

It could either be the tire or the valve stem that has the leak. Most likely, you picked up a nail or a screw, which is still stuck in the tire somewhere. The leak will be too slow for you to hear, but fast enough to leak out overnight. Just take it to your favorite tire shop. They'll find it fast and fix it for probably $20 or so...

 

There's a leak somewhere. Dunk it in water to find it. Could be a nail in the tire, a bad valve, a leak at the bead or a crack in the wheel itself. Get it checked.

 

got it fixed; i came to find out it was a broken valve stem

 

Yea I was thinking that it was probably a valve steam leak. Just dunk it in water.