Tire Pressure? - Toyota Nation Forum : Toyota Car and Truck Forums
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#1 Old 07-27-2008, 01:47 AM
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Tire Pressure?

What is the maximum tire pressure permitted on the Toyota tires? and if the tire pressure is increased, will this effect the tire sensor located on the rim, could it malfunction? or cause a "Check Engine Light" to activate?

any information would be appreciated

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#2 Old 07-27-2008, 02:32 AM
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your corolla manual will tell u , go check it out,
plus, u don't need maximum tire pressure, u just need a correct pressure
for xrs, 17" wheel +tire, is 32psi
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#3 Old 07-27-2008, 09:15 AM
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From what I can tell, the TPMS are calibrated at eg 32psi and work by checking to make sure the pressure doesn't go any lower than this setting. It doesn't 'care' if it goes higher as tires don't increase in pressure on their own. Due to ambient temperature fluctuations, tires can lose pressure. We have to adjust our pressure in every season change due to the temperature variations.
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#4 Old 07-27-2008, 05:12 PM
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TPMS are calibrated to whatever you want them to be at when you press the Tire Pressure Set button.


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#5 Old 07-27-2008, 06:03 PM
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Quote:
Originally Posted by rCustom View Post
your corolla manual will tell u , go check it out,
plus, u don't need maximum tire pressure, u just need a correct pressure
for xrs, 17" wheel +tire, is 32psi
amen brotha
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#6 Old 07-27-2008, 07:22 PM
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Max cold inflation pressures are molded into the sidewall of the tire. IIRC they're 44 PSI for the Corolla. Why you'd want to drive with such high tire pressures is beyond me.
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#7 Old 07-28-2008, 03:11 AM
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Quote:
Originally Posted by Keith DC5 View Post
Max cold inflation pressures are molded into the sidewall of the tire. IIRC they're 44 PSI for the Corolla. Why you'd want to drive with such high tire pressures is beyond me.

See living here in Hawaii, There is no Snow, No heavy Rains tha'll flood, only nice clear skies, with the slight chance of a hurricane, rainbows in the day a & peaceful nights, and the ever increasing prices of gas, increasing pressure to the 10lbs higher limit will increase mileage..................then save gas...........then improve expenses.............an so forth, i had tires pressured at 32 psi, then you know what? had to change them because of improper wear, that with rotation, maitain pressure and everything you could think of and so forth, got other tires that had to replace them they put in the air pressure set @ 45 psi & got 5mpg more for the buck.......so go figure.....as for me learned from experience, got any other interesting comments?

Last edited by lonejedi; 07-28-2008 at 03:12 AM.
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#8 Old 07-28-2008, 09:09 AM
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i have to agree on that regarding higher air tire pressure. wear and tear on the tire during "normal" driving is less or should i say the tire life is longer when you are on a higher air tire pressure. the only drawback is the ride becomes more bouncy than when you are on the factory specified air tire pressure.
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#9 Old 07-29-2008, 06:59 AM
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Quote:
Originally Posted by lonejedi View Post
See living here in Hawaii, There is no Snow, No heavy Rains tha'll flood, only nice clear skies, with the slight chance of a hurricane, rainbows in the day a & peaceful nights, and the ever increasing prices of gas, increasing pressure to the 10lbs higher limit will increase mileage..................then save gas...........then improve expenses.............an so forth, i had tires pressured at 32 psi, then you know what? had to change them because of improper wear, that with rotation, maitain pressure and everything you could think of and so forth, got other tires that had to replace them they put in the air pressure set @ 45 psi & got 5mpg more for the buck.......so go figure.....as for me learned from experience, got any other interesting comments?
says the guy who needed help finding the max inflation pressures. Don't be so cocky when people are helping you out, esp. if they're far more familiar with cars than you are.

If your previous tires were set at the factory recommended levels and you experienced uneven tread wear, that's a vehicle load or alignment problem. If you haven't noticed, most of Hawaii roads are tapered (road crowns). What you obviously overlooked is that overinflated tires can still cause uneven tread wear not to mention the decreased contact patch reduces lateral grip, increased stopping distances, etc.

Factory recommended inflation levels are a compromise between ride quality, vehicle performance, efficiency, and longevity. You can adjust them to your needs accordingly but I'm sure you knew that since you're so experienced.
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#10 Old 07-29-2008, 07:57 AM
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Checked my Goodyeay Eagle LS-2 195-65-15's stock tires & they had 45psi all the way around....51psi is max.

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#11 Old 07-29-2008, 10:29 AM
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TPMS only pops up a warning when there is over a 4psi difference between tires. In other words, if all 4 had only 20 psi, no warning. If all 4 are at 50 psi, no warning. If front two are at 32 and rears are at 26 psi, you get a warning. It is designed for signalling a warning for a singe tire going flat, which is more prone to cause a dangerous condition. This is what a Toyota master service tech told me.

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#12 Old 07-29-2008, 06:49 PM
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Good to know, thanks.
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