answersLogoWhite

0


Best Answer

i dont know why

User Avatar

Wiki User

10y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why does the air pressure in a car's tire go up on a hot day?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Why does a tire feel harder on a hot day?

The air inside the tire heats up, building the pressure. The pressure is exerted on the walls of the tire, making it feel harder.


Why is it advisable not to increase the air pressure in a car tire to full limit when driving on hot day?

AnswerTire pressure is supposed to be measured while the tire is cold. Tire pressure is higher when the tire is hot; therefore, the pressure of a hot tire will drop below its limit when it cools down.


A truck's tires have the correct air pressure at room temperature about 20c explain why a tire is more likey to explode when the truck is driven in hot weather than in cold weather?

As a tire goes round and round heat builds up inside the heat expands the air inside the tire. On a normal day that he can dissipate but as the temperature on the outside increases is more difficult for the heat (energy) to leave the inside of the tire. As the temperature increases the pressure inside the tire also increases. It is that pressure that can cause the tire to explode.


How do you turn off the low tire pressure light for a 2005 Honda Pilot after ensuring the tire pressure is ok?

It should turn off automatically after you put in the correct tire pressure. I just did this the other day.


Why drivers are advised to decrease the pressure og their wheel's tire when they travel during hot day?

Compressed air normally expands 7psi after a tire warms up & contains moisture (not good for rubber & heat). Decreasing air pressure allows for the tire to expand while driving, especially on hot days, but also decreases gas mileage as well. It is not necessary to do this. I recommend asking your local tire center or auto dealer about replacing the air with "nitrogen gas". The temperature of the tire is greatly reduced & fuel economy increases using "nitrogen gas".


What is the typical air pressure in oshawa ON CAN?

Air pressure, everywhere, varies day to day dependant on weather factors


Why do mechanics tell you to check your car tires in the spring and in the fall?

The air in your tires expands in the spring and contracts in fall. On a cool day in fall your tire pressure will be low.


What does a lighted tire inflation indicator mean on a Toyota RAV4?

I have a Toyota Prius, the indicator lets you know when your tire pressure is too low. I noticed it in the beginning of fall when the mornings were chilly, and it would go away during the day (the air in the tires contracts with colder temps, resulting in lower pressure in the tire). You should check your pressure and inflate your tires if they are too low, check your owner's manual for the proper pressure for your tires.


Why does the pressure build up in a tire on a hot day assume that the tire volume is a constant?

because the gas particles expand in heat; the atoms are expanding in a compressed container. Pressure builds up because the atoms are trying to escape the tire


How often should you check you tire pressure?

I check mine every other day, and keep a good tire gauge in each car.


The manual of the car said 32lbs tire pressure. the reading of the tire said 41 lbs air pressure?

Tire air pressure? Listen to what Pirelli Tire's Limited Warranty has to say about it. Recommended tire inflation pressures for your vehicle can be found either in your vehicle owner's manual or your vehicle's tire placard or in the manufacturer's data book. Correct pressures are related to loads, speeds and vehicle handling and are vital for even braking, maximum traction and good tire life. Under no circumstances should your tire's cold inflation pressure be less than that indicated in your vehicle owner's manual or on your vehicle's tire placard or higher than the maximum cold inflation pressure molded onto the tire's sidewall. Under-inflation causes excessive flexing, deterioration of the tire and rapid wear of the tread edges. Over-inflation results in an uncomfortable ride, a reduced area of tire contact with the road surface (i.e. smaller tire footprint), higher susceptibility to impact damage and rapid wear on the tread center. Inflation pressure must be checked at least once a month and should be checked only when the tire is cold or before it has been driven. Driving even a short distance (1 mile or 2 to 3 minutes) causes tires to heat up and the pressure to increase approximately 4 p.s.i. In case it is necessary to adjust the air pressure in the tires that have been driven, the air pressure should be increased to a guage reading of 4 p.s.i. high than the recommended cold inflation pressure. For example only:Gauge reading of hot tire 27 p.s.i. Recommended cold inflation pressure 26 p.s.i. Desired guage reading of hot tire 26 p.s.i. + 4 p.s.i. = 30 p.s.i. Therefore add 3 p.s.i. Check cold inflation pressure on tires, at least by the next day. never reduce or "bleed" air from hot tires since your tires will then be under-inflated when they cool down.Always use a reliable pressure gauge. SAFETY FIRST!


Why do you need to add air your tires in the winter?

You should check your tires every month or so, because driving with low tire pressure can cause excessive wear of the tires and poor handling. In cold weather, the air becomes more dense and the pressure falls, but this isn't a significant factor. As you drive at freeway speeds, the flexion of the tire causes heat anyway, so even on a cold day, the pressure is probably fine.