Ill just put 30 psi of air on my tire how comes it always drop to 22 psi ,what would be the problem?

only on 1 tire,,,it always happened everytime i put air on that tire,,needs helpIll just put 30 psi of air on my tire how comes it always drop to 22 psi ,what would be the problem?
I would think that you either have a slow puncture or a faulty tyre valve. If tyre is worn would sugest replacement, or for a cheaper alternative you can have the valve changed at a tyre fitting outfit. If you think it is a slow puncture then you can buy a sealant that you squirt into the tyre via the valve, this then seals the hole and repairs future holes in the tyre, the sealant runs on the inside of the tyre when you are driving and if a puncture develops the sealant by centrifugal forces runs over the hole and seals it. If U.K then try Halfords for this repair sealant.Ill just put 30 psi of air on my tire how comes it always drop to 22 psi ,what would be the problem?
If you're talking about over a time period, it has a slow leak. If you mean you fill it w/a hose w/gage then check w/hand-held gage, the valve core may be in too deep or defective. Note, valve cores often are the source of slow leaks, put some liquid [like saliva] over the valve to see if it bubbles, if so there is the leak.
Next time you air up your tire. get a spray bottle and mix dish soap and water. Just enough to make it bubble. spray around the rim and air valve. if you see bubbles forming at one spot you found your air leak. Sounds like the valve not seating right after you put air in it. $6 to $8 dollar fix. Check the tread and see if there is a nail in the tread. Might need someone to drive forward little at a time so you can look at the whole tread. little screws and nails can do the same thing. also a cheap fix at any tire shop.
That`s certainly a tough one Jerome . Maybe the pressure gauge is shot ? Could be one of those new type tires with an automatic safety pressure relief valve that lets out any excess pressure .





I`ll bet that`s it ! The tire safety valve needs adjusting to 30 lbs , or replacing . Take your car into any of the larger dealerships and ask them to inspect all the tire pressure relief valves .
i have one that does the same thing on my car,it has a slow leak around the valve stem someday i,ll fix it,but its probably a slow leak that's causing this,you can take it off and do a water and soap test on it to see where its at,that will help you find it,also look for a small tack or a nail in it that to will cause it,good luck hope this helps.
If you have aluminum rims (most common problem), the air is possibly leaking past the rims ';bead';. This is where the tire contacts the rim. Corrosion build-up on this bead will allow air to seep past. You should take it to your tire store and have them remove the tire and clean the rim.





Another possibilty is the valve stem....





At any rate, have it looked at.....
Bring your car to a professional. The tire might have a puncture or your car is not aligned correctly.
u may have something in it or the bead may be leaking,,
Any number of things could cause air leaks. There might be a small nail, piece of glass or other object embedded in the tire. It may have a small slice in the tread or sidewall area. The bead could be not seated (due to corrosion, or dirt that was on it before the tire was installed). The valve stem may be loose (wrong size), damaged or the stem may need to be replaced.





Have it checked at a tire shop and necessary repairs made and I'll bet the problem disappears! Thanks for the two points. Good luck!
its leaking out...duh