tire keeps deflating

[IncredibleLE]

hey guys, i got a problem. my back passenger tire keeps going flat. it was doing it for a week so i got new tires ( becuz of that and they were 2 years old). so yesterday i was driving home and i heard a weird noise. i stop and look around the car and see the tire all the way deflated. can u guys tell me wat is going on. i inspected the tire but there are no nails or holes in the thread or side of the wheel. thanks in advance

[terrastrife]

get a new rim. tyre bead and rim edge not sealing.

[Camryamnesty]

or your having very bad luck with nails....

[atobe]

that's kind of odd the tire shop didn't check for that when putting tires on

[TRDGen5.5camry]

it might be your valve stem

[white3ch0c0late]

Originally Posted by TRDGen5.5camry

it might be your valve stem

x2. Had a problem like this on my old car. Turned out to be a bad valve stem.

[IncredibleLE]

i checked it and it does seem like theres a tear around the valve stem. can that be replaced?

[white3ch0c0late]

Yeah, it'll cost like $5 - $10 at any gas station.

[Camryamnesty]

you could do it yourself for like 2 bux but its hard, cuz u have to break the bead i layed the tire down , an dhad my friend run the tire over to break it lol it worked in the end.

[ghettosled]

check all over the tire for punctures, not just the tread. a tire i bought from sams club split near the bead and the rim (and the tire wasnt even a year old). one sure fire way is either submerge the tire and rim in a tub of water and see where the bubbles are coming from or pour mildly soapy water all over the tire and look for the bubbles.

[Hajoca]

Put some dish detergent (1 tablespoon) and a cup or two of water into a sprayer bottle.
Spray the crack you mention, and look for bubbles, the stem is quite tough, and the crack has to be pretty deep to leak. Check the valve to see if it is screwed in properly. Did you get new stems with the tires?

Spray the tire treads side walls, rim tire (bead) area and then the valve stem with the cap off and see if there are any bubbles elsewhere. A cup of soappy water can test many many tires.

BTW, how old is the wheel, and is it steel, or alloy wheel?

[Cyorke]

Check your valve stem first. I wouldnt think that would be it because it should ahve been replaced when the new tires were put on. Unless the installer screwed it up somehow. Like someone suggested get a spary bottle and put some liquid dish detergent in it with water and spray the entire tire. including the valve stem. Youwill also want to spray around the bead of the tire inside and out. if you dont find anything there and you are running steel wheels it is possible that the welds that hold the two pieces of the wheel together have gone bad.

[IncredibleLE]

thanks guys. the installer didn't change the valve stem. it the same one. i got the rims about 3 years ago. they're alloy