Home     Links     Contact Us     Bookmark  
   Homepage      News      Legal Forum      Dictionary  
Home : Legal Forum : Cars & Transportation Safety

Does hot weather affect tire air pressure?
Find answers to your legal question.

Does hot weather affect tire air pressure?

It has been about 110 degrees F where I live...as I was driving the freeway yesterday, my "air pressure" warning light went on. I just had my car serviced a week ago, where they checked the pressure and rotated the tires. Could the heat have affected the air pressure?


Yes, check your pressure when the tires are cool, never hot. A month ago your car was not probably not experiencing the heat it is now so the pressure has altered. As you were driving on the hot road, the pressure increased. The computer on your vehicle is letting you know that the pressure is high. Once again, get a good tire pressure gauge and check it when it is cool in the shade and parked for at least 2 hours.

heat cause air to expand, more heat more air pressure in tires.

yes it does call your service station and they can advise you

too frisky
Yes. The heat in the weather and the heat from road friction both will heat the air inside the tire causing it to expand which raises the tire pressure. You need to be very carefull not to fully inflate tires under such conditions because the resulting overinflation can bust the tires....I know I did it once and got three flat tires within minutes. I had fully inflated the tires and by the time I drove twenty-five miles and the temperature outside was HOT! then the air expanded and about ten minutes after I stopped the tires all busted with loud bangs like a gunshot. It was scary and then embarrassing and then expensive.

If you haven't busted the tires yet you might let out some of the air just a little so there will be room to expand..at least until the temperatures get down lower.

mark o
yes, only slightly, but enough to set off the pressure sensors. As we all know, air expands when heated. because it is confined by the tire and rim, it has no where to expand to so it swells within the confines of the environment and the pressure increases.

Johnny Speed
Yes, heat affects tires, and they may have given you too much air pressure when they rotated them. Find out what the proper pressure is supposed to be and try to keep them at that level.

normally on cars equipped with a tpms (tire pressure monitoring system) the computer will illuminate the light if tire pressure drops or one tire gets out of range of the other tires you should let your car sit over nite and then check the tire pressure in the morning when they have had a chance to cool check your owners manual to see what you recommended inflation should be and set it cold the heat will usaully only raise tire pressure up five degrees or so depending on how hot it is and how much driving you are doing if this doesnt shut off your light then you should see if there may be a problem in the tpms i doubt it but there is a slight chance


Mark T
yes i believe the pressure increases by 1 psi for every ten degrees Fahrenheit

no it does not but tirers lose air over time

 Enter Your Message or Comment

User Name:  
User Email:   
Post a comment:

Legal Discussion Forum

 Why do so many young men think it is macho to drive fast?
The statistics show that too many young men die on the roads, or kill others, because of excessive speed. What does it take for them to stop and think: seeing their friends die, or dying themselves?<...

 Is it not about time using mobiles whilst driving means you loose the phone the first time and the car?
the second time. Or am I ignorant of the major road safety improvements yaking on a mobile brings to drivers? Clearly lorry drivers find that a mobile is particularly usefull along side their wad of ...

 If a car is traveling at 80 mph..will it cause a big impact if smahed onto another car???
If in an intersection..one car is bout to turn left then a drunk driver failed to stop at a red light driving at 80 mph.. smashed onto that turning car.. would that be a strong impact and might ...

 Why do people stay in the left lane when not passing?
I see this every single day on my way to school/work, and it is really starting to irritate me. People will get in the left lane (passing lane) and just stay there for about the next 3 to 5 miles. W...

 Does the 135cm height rule for car seats include shoes or not?

 Why is that on the AMBULANCE, the letters are painted in REVERSE direction?

 What city is the most difficult place to drive an automobile?
I live in Manila where jeepney drivers stop in the middle of the road for passengers to get on and off. I'd like to know if there's any other place where driving is more difficult....

 Why are there yellow bumpy things in front of stores?
The plate of bright yellow bumpy mettle that they have bolted down in front of stores, what is the purpose of it being there?...

 Is it ok to throw warm water on windows when icy?
i need to know if thats ok to do..or using defrost is better?

if ur in hurry and windows are icy..can i just throw warm water on windows?..or leave on defroster for awhile?...

 What should I do when I am driving at high speed and one of my tyres burst?
What immediate life saving measures should I take?...

 My car horn doesn't work please help driving me nuts?
It dosen't work when you push the button on the sterring whell but I am pretty sure it works when the factory alarm is on I have already checked the fuse

 Any tips on taking my driving test to get my license! PLASE HELP!?

 I like parking in handicap spaces to watch handicap people make handicap faces I'm an?

 What does ABS (anti braking system) mean ?
in relation to ...

 Whats the biggest tires i can put on my jeep that is street legal?

 Do you need to use a turn signal while parking?
like when you just pull ...

 How come they don't have seatbelts on buses or trains?

 How old are kids suppost to be to go in the front seat in the car?
ok ...

 How to i overcome the fear of driving? especially driving alone to far distances/places? please advice.?

 Driver's out there, what are you thinking?
Am I the only one who drives and does not have a phone attached to my ear? And lets be honest, the conversations are not important and can't probably wait! The important thing should be that ...

Copyright (c) 2009-2013 Wiki Law 3k Saturday, February 13, 2016 - Trusted legal information for you.
Archive: Forum  |  Forum  |  Forum  |  Links