Correct Tire Pressure - Kia Forum
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#1 (permalink) Old 02-28-2006, 09:55 PM
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Hi, I just bought a 2nd hand 2002 Kia Sedona, and I'm not sure what's the right psi to put on the front and rear tires... the current psi on the front tires are 45...

do u think this is enough? or should I make it less 45? what is the ideal tire pressure for both front/rear tires?

thanks
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#2 (permalink) Old 02-28-2006, 11:24 PM
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Hello Charlie Alpha,
The handbook for my 2004 Sedona (Carnival) says the pressure in all four tyres should be 37psi. That's what I put in my tyres, although this might vary according to the make of tyre fitted. However, I think you will find from this forum that 37psi. is the pressure a lot of us use.

Hope this helps.

Cheers.

Kirky
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#3 (permalink) Old 02-28-2006, 11:56 PM
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oh I see, thanks... just went to a garage to change the tire pressures into 36psi...

-it seems like it's normal for the front tires to looks a little bit depleted.. maybe its because of the weight ...

thanks again...
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#4 (permalink) Old 03-06-2006, 10:02 AM
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Quote:
Originally posted by charlie_alpha@Mar 1 2006, 06:56 AM
oh I see, thanks... just went to a garage to change the tire pressures into 36psi...

-it seems like it's normal for the front tires to looks a little bit depleted.. maybe its because of the weight ...

thanks again...


you may find your fuel consumption goes real bad now let us know, I am thinking of increasing my tyre pressure to 45 psi... the tyres always look flat on mine but the pressure is right.
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#5 (permalink) Old 03-07-2006, 05:05 AM
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Hi Clartsonly
If you have steel belted radials on your car they always tend to look a bit flat,even with the correct tyre pressure.It seems to be a characteristic of these tyres for some reason.I would not advise to run them on 45psi as they are not designed to run with that sort of pressure,you will find they will wear unevenly if you do.Hope this helps.Len
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#6 (permalink) Old 03-08-2006, 04:39 AM
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I am also concerned that the ABS will constantly cut in too if they are harder, as it seems to go if you hit anything unusual when braking (drain, bump, paint..)
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#7 (permalink) Old 03-08-2006, 05:34 AM
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Hi Clartsonly
You will also find with to much air in the tyres that in wet weather they won't disperse water as well as they are supposed to.Len
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#8 (permalink) Old 02-01-2010, 07:57 PM
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Default Remember to pump a bit more air in winter time

Tire pressure is very important, unfortunately, it goes lower automatically with respect to temperature. Roughly, every 10 degrees drop, the tire pressure will drop about 1 psi. So, what I did as temperature start dropping in fall, I tend to add a little bit. e.g. when it dropped from 90 degrees to 50, my tire is 4 psi lower.

Through out the winter, the weather seems always has a few very cold days each month, so before those cold days come, I often pump a few more psi to around 43 psi, and as temperature dropped from 40's down to 10's or lower, I know I will have 37 psi or more.

After March when the weather getting warmer, I stopped pumping air, but watch the tire pressure. Since no matter new or old tire, the tire pressure will be gone little by little. However, as temperature goes up gradually, the tire pressure seems to maintain well.

It is very dangerous not to have enough tire pressure. In winter, you may find it flat at some very cold night or morning. In summer, you will have flat tire on road in afternoon when some days went up to 100 degrees, as insufficient tire pressure causes high temperature of tire at highway.

Unfortunately, it happened to me one summer. So, now I established the above habit to make sure enough tire pressure thru out winter time, and summer time, I will be sure to have enough tire pressure ...
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#9 (permalink) Old 02-03-2010, 05:13 AM
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I wouldn't stress about running tyres at 45psi. I am running close to that in my 2009 Grand Carnival, and many past cars, without any negative effects.

More pressure generally means better grip (up to a point), so you get better handling with a trade off in ride quality with the higher pressure.

Some say I have no mechanical sympathy. They are wrong, I always feel sory for the cars I drive.
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#10 (permalink) Old 02-08-2010, 03:14 PM
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It's so interesting to see such a varied array of ill-informed and uneducated statements made here. Tire pressure for your vehicle is specified by the manufacturer and stamped usually on a decal either under the hood or in the door jamb. It DOES NOT vary depending on the type of tire you use. Also, more pressure DOES NOT generally mean better grip; it means less rolling resistance, thus better fuel economy, but much less grip as the contact patch is decreased. And just because a tire appears to be suffering no ill effects doesn't mean it's a good thing. You have to look at the whole picture and consider long-term wear, uneven wear, effect on tire response under emergency situations, temperature variances, etc. KIA has hired entire fleets of engineers who have diligently specified the PROPER tire pressure, but somehow we all think we can improve upon their specifications.

Tire pressure should be checked in the morning before the vehicle has been driven. And it should be checked seasonally to adjust for temperature.

Last edited by gmercoleza; 02-08-2010 at 03:16 PM.
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