"Cold" pressure simply means checking the pressure before a car has been driven. That's the proper time to set pressures. Tires heat up (road friction and flexing) as they're rolling down the road.
Use an air pressure gauge available at any auto supply or department store. Newer digital gauges are often easier to read and may be more accurate than the analog style with a 'stick' that pops up and shows the pressure reading.
Cheers
Because when the air in a tire gets colder, it contracts and that reduces the pressure in the tire.
Cold tires is just a term used to describe a tire that has not been driven lately. Driving the car creates heat in the tire thus increasing the air pressure. That is why you should always check the air pressure when the tire is cold or has not been driven for a few hours.
atmosphere it has the highest layer
you should always check your tire inflation pressure when your tires are cold, and inflate them to the recommended pressure at that time. A good estimate to use when comparing tire pressure to air temperature is for every 10 degrees F, tire pressure will adjust by 1 psi. For example, if the outside air temperature increases 10 degrees, the tire pressure will increase by 1 psi. Conversely, if the air temperature falls 10 degrees, the tire pressure will decrease by 1 psi.
through air pressuer
30, cold
Once the tire has enough air it will go out by itself.
yes, but it is dependent on how hot the air was when the tier was first inflated.
Bad sensor on tire (replace battery??)
Depends on the vehicle and tire size. -Check at your tire store, this is not something you should guess.
air pressure. waxing may clog the port, air pressuer and a old tooth brush should do the trick
There is no one pressure indicated on any 19 inch tire (tyre). Every tire manufacturer has different air pressure specifications individual to each tire.On every tire the Maximum load weight per tire and the maximum air pressure per tire is embossed in raised lettering on the sidewall of the tire itself.If you cannot locate it there, check the on manufacturers website for recommended air pressure, or check the inside door jamb of the vehicle the tires are mounted on for correct air pressure specifications.