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Tire pressure
From time to time this subject has come up. I had an interesting? thought. Why doesn't someone come out with a gauge that you push against the side of the tire that measures the deflection? Beats removing a cap and fooling with a fussy tire air pressure gauge. It might need to be calibrated by the user with a regular gauge depending on type of tire. I'd buy one (if it didn't cost an arm and a leg). What do you think? -- You know it's time to clean the refrigerator when something closes the door from the inside. |
Tire pressure
KenK wrote:
I had an interesting? thought. Why doesn't someone come out with a gauge that you push against the side of the tire that measures the deflection? Beats removing a cap and fooling with a fussy tire air pressure gauge. It might need to be calibrated by the user with a regular gauge depending on type of tire. I'd buy one (if it didn't cost an arm and a leg). What do you think? I think it would be difficult to calibrate and have a cost considerably higher than a $2.95 Slime pencil type tire gauge. I picked the Slime brand because a review in a motorcycle magazine, where people tend to be less casual about tire pressures, found it as good as any and better than most, including the upscale digital models. |
Tire pressure
KenK:
The deflection of the tire sidewall is not the most accurate indicator of proper/over/underinflation. Semi-OT: Has anyone seen that TV commercial where viewers are given 3 choices as to how much oil could be saved if everyone in America kept their tires properly inflated? I believe the correct answer was in the billions of gallons. Sobering! |
Tire pressure
On 12/12/2014 09:09 AM, rbowman wrote:
KenK wrote: I had an interesting? thought. Why doesn't someone come out with a gauge that you push against the side of the tire that measures the deflection? Beats removing a cap and fooling with a fussy tire air pressure gauge. It might need to be calibrated by the user with a regular gauge depending on type of tire. I'd buy one (if it didn't cost an arm and a leg). What do you think? I think it would be difficult to calibrate and have a cost considerably higher than a $2.95 Slime pencil type tire gauge. I picked the Slime brand because a review in a motorcycle magazine, where people tend to be less casual about tire pressures, found it as good as any and better than most, including the upscale digital models. The industry is one step ahead of that. A friend of mine bought a /used/ car and it has built-in tire pressure sensors. She got a warning when one of the tires was low. Since the car was used, that means the technology must have been around for a while now. |
Tire pressure
On 12/12/2014 10:09 AM, rbowman wrote:
KenK wrote: I had an interesting? thought. Why doesn't someone come out with a gauge that you push against the side of the tire that measures the deflection? Beats removing a cap and fooling with a fussy tire air pressure gauge. It might need to be calibrated by the user with a regular gauge depending on type of tire. I'd buy one (if it didn't cost an arm and a leg). What do you think? I think it would be difficult to calibrate and have a cost considerably higher than a $2.95 Slime pencil type tire gauge. I picked the Slime brand because a review in a motorcycle magazine, where people tend to be less casual about tire pressures, found it as good as any and better than most, including the upscale digital models. A decade or more ago I was in a store. They had tire pressure gauges, and for a dollar more, Radial tire pressure gauges. - .. Christopher A. Young Learn about Jesus www.lds.org .. |
Tire pressure
my 2014 Toyota Avalon
has some sort of automatic low tire pressure check I wonder how this technology works... marc |
Tire pressure
On 12/12/2014 9:40 AM, KenK wrote:
From time to time this subject has come up. I had an interesting? thought. Why doesn't someone come out with a gauge that you push against the side of the tire that measures the deflection? Beats removing a cap and fooling with a fussy tire air pressure gauge. It might need to be calibrated by the user with a regular gauge depending on type of tire. I'd buy one (if it didn't cost an arm and a leg). What do you think? Besides the difference among tires' sidewall construction and stiffness you would also have to contend with 'where' the deflection was measured and what the material's temperature was and, just guessing, that the sidewall stiffness probably changes with age and mileage. Better to wait until all TPMS systems catch up with the most advanced types which give a direct readout of each tire's pressure rather than the present 'too low' indication. |
Tire pressure
On Friday, December 12, 2014 10:17:55 AM UTC-5, Stormin Mormon wrote:
On 12/12/2014 10:09 AM, rbowman wrote: KenK wrote: I had an interesting? thought. Why doesn't someone come out with a gauge that you push against the side of the tire that measures the deflection? Beats removing a cap and fooling with a fussy tire air pressure gauge. It might need to be calibrated by the user with a regular gauge depending on type of tire. I'd buy one (if it didn't cost an arm and a leg). What do you think? I think it would be difficult to calibrate and have a cost considerably higher than a $2.95 Slime pencil type tire gauge. I picked the Slime brand because a review in a motorcycle magazine, where people tend to be less casual about tire pressures, found it as good as any and better than most, including the upscale digital models. A decade or more ago I was in a store. They had tire pressure gauges, and for a dollar more, Radial tire pressure gauges. - . Christopher A. Young Learn about Jesus www.lds.org . For two dollars more, you could probably get a left-handed tire pressure gauge. Paul |
Tire pressure
On Friday, December 12, 2014 10:57:30 AM UTC-5, BenignBodger wrote:
On 12/12/2014 9:40 AM, KenK wrote: From time to time this subject has come up. I had an interesting? thought. Why doesn't someone come out with a gauge that you push against the side of the tire that measures the deflection? Beats removing a cap and fooling with a fussy tire air pressure gauge. It might need to be calibrated by the user with a regular gauge depending on type of tire. I'd buy one (if it didn't cost an arm and a leg). What do you think? Besides the difference among tires' sidewall construction and stiffness you would also have to contend with 'where' the deflection was measured and what the material's temperature was and, just guessing, that the sidewall stiffness probably changes with age and mileage. Better to wait until all TPMS systems catch up with the most advanced types which give a direct readout of each tire's pressure rather than the present 'too low' indication. +1 I doubt you could come up with anything that works well because of all the variables. |
Tire pressure
On Friday, December 12, 2014 9:57:30 AM UTC-6, BenignBodger wrote:
On 12/12/2014 9:40 AM, KenK wrote: From time to time this subject has come up. I had an interesting? thought. Why doesn't someone come out with a gauge that you push against the side of the tire that measures the deflection? Beats removing a cap and fooling with a fussy tire air pressure gauge. It might need to be calibrated by the user with a regular gauge depending on type of tire. I'd buy one (if it didn't cost an arm and a leg). What do you think? Besides the difference among tires' sidewall construction and stiffness you would also have to contend with 'where' the deflection was measured and what the material's temperature was and, just guessing, that the sidewall stiffness probably changes with age and mileage. Better to wait until all TPMS systems catch up with the most advanced types which give a direct readout of each tire's pressure rather than the present 'too low' indication. How about on the fly pressure adjustment ? Drop a few pounds in rain or snow, add a few pounds for highway gas mileage. Baby whales need to breathe too. |
Tire pressure
On Fri, 12 Dec 2014 08:33:03 -0700, Stormin Mormon
wrote: On 12/12/2014 10:15 AM, wrote: Semi-OT: Has anyone seen that TV commercial where viewers are given 3 choices as to how much oil could be saved if everyone in America kept their tires properly inflated? I believe the correct answer was in the billions of gallons. Sobering! I doubt it's that much. Be interesting if that were true. - . Christopher A. Young Learn about Jesus www.lds.org . let's see, 100 million cars means at least average of 10 gallons per car, or 40 quarts per year. Nope not being used up there, unless they meant 'lifetime'. How about trucking industry, yeah, they must be the true culprits of using all that oil. I'd be more worried about how one heavy 18 wheeler is equivalent to the traffic of 50,000 cars. |
Tire pressure
On 12/12/2014 10:16 AM, philo wrote:
On 12/12/2014 09:09 AM, rbowman wrote: KenK wrote: I had an interesting? thought. Why doesn't someone come out with a gauge that you push against the side of the tire that measures the deflection? Beats removing a cap and fooling with a fussy tire air pressure gauge. It might need to be calibrated by the user with a regular gauge depending on type of tire. I'd buy one (if it didn't cost an arm and a leg). What do you think? I think it would be difficult to calibrate and have a cost considerably higher than a $2.95 Slime pencil type tire gauge. I picked the Slime brand because a review in a motorcycle magazine, where people tend to be less casual about tire pressures, found it as good as any and better than most, including the upscale digital models. The industry is one step ahead of that. A friend of mine bought a /used/ car and it has built-in tire pressure sensors. She got a warning when one of the tires was low. Since the car was used, that means the technology must have been around for a while now. Wife's car has these sensors. One went bad and showed tire to be under inflated when it was inflated to the proper pressure. Dealer charged $100 for a new sensor and $100 to put it in. I would have been tempted to put a piece of masking tape over the red warning light. I have the same model car but older without the sensors and I've never been worried about it. I rented a Toyota that had a screen that showed the pressure of each tire. Warning light came on but did not say which tire and I had to check them all with my gauge. Being a rental car, they varied by about 10 psi. Our masters in DC have mandated this. Can't wait for the mandated backup camera - more expensive **** to go bad. |
Tire pressure
On 12/12/2014 10:16 AM, philo wrote:
The industry is one step ahead of that. A friend of mine bought a /used/ car and it has built-in tire pressure sensors. She got a warning when one of the tires was low. Since the car was used, that means the technology must have been around for a while now. Huh? You can buy cars less than a year old as "used". The technology has been around over five years though. |
Tire pressure
On 12/12/2014 11:39 AM, Frank wrote:
Wife's car has these sensors. One went bad and showed tire to be under inflated when it was inflated to the proper pressure. Dealer charged $100 for a new sensor and $100 to put it in. I would have been tempted to put a piece of masking tape over the red warning light. I have the same model car but older without the sensors and I've never been worried about it. Avoid the dealer. A local tire shop charges $10 for them installed if replaced with new tires. Probably would have charged you $20 or so. |
Tire pressure
On 12/12/2014 9:16 AM, philo wrote:
.... The industry is one step ahead of that. A friend of mine bought a /used/ car and it has built-in tire pressure sensors. She got a warning when one of the tires was low. Since the car was used, that means the technology must have been around for a while now. Probably close to 10 yr if not longer; not sure whether it's yet in the "mandatory" column for new or not but haven't had a vehicle without it since an '06 model LeSabre that had them. The '06 was the "one is bad, not indication of which" variety of indicator but all since all have at least an indication of which but since '10 all have digital readout on each tire. I've yet to have one go bad with four vehicles and a combined mileage of probably 500k as a group, so in my mind they're _a_good_thing_ (tm) and well worth the relatively small initial cost. Somebody brought up the rear camera -- it's in the '10 Enclave and I find it of little real value. I suppose if one had small kids it would have a chance of saving a backup incident but I've had the vehicle for five+ years now and I rarely, if ever, actually look at it. The backup IR sensors are excessively sensitive and somewhat annoying; if I had only a little more ambition I'd find the location of the beeper and put something over it to mute them significantly. I suspect in an instance or two over the life of a vehicle they'd have the possibility to prevent a fender crunch but are exceedingly irritating trying to parallel park in a tight spot as they start alarming far too far away from actual impact. That _could_ be tuned; others may be better... -- |
Tire pressure
On 12/12/2014 11:59 AM, Ed Pawlowski wrote:
On 12/12/2014 11:39 AM, Frank wrote: Wife's car has these sensors. One went bad and showed tire to be under inflated when it was inflated to the proper pressure. Dealer charged $100 for a new sensor and $100 to put it in. I would have been tempted to put a piece of masking tape over the red warning light. I have the same model car but older without the sensors and I've never been worried about it. Avoid the dealer. A local tire shop charges $10 for them installed if replaced with new tires. Probably would have charged you $20 or so. I would, but she won't. Dealers won't do low cost repairs. Shops are tough too unless you're spending big bucks. |
Tire pressure
On 12/12/2014 10:56 AM, Ed Pawlowski wrote:
On 12/12/2014 10:16 AM, philo wrote: The industry is one step ahead of that. A friend of mine bought a /used/ car and it has built-in tire pressure sensors. She got a warning when one of the tires was low. Since the car was used, that means the technology must have been around for a while now. Huh? You can buy cars less than a year old as "used". The technology has been around over five years though. My friends cannot afford "late model" used cars. Half my friends don't even own a car. |
Tire pressure
"Frank" wrote in message ... On 12/12/2014 10:16 AM, philo wrote: On 12/12/2014 09:09 AM, rbowman wrote: KenK wrote: I had an interesting? thought. Why doesn't someone come out with a gauge that you push against the side of the tire that measures the deflection? Beats removing a cap and fooling with a fussy tire air pressure gauge. It might need to be calibrated by the user with a regular gauge depending on type of tire. I'd buy one (if it didn't cost an arm and a leg). What do you think? I think it would be difficult to calibrate and have a cost considerably higher than a $2.95 Slime pencil type tire gauge. I picked the Slime brand because a review in a motorcycle magazine, where people tend to be less casual about tire pressures, found it as good as any and better than most, including the upscale digital models. The industry is one step ahead of that. A friend of mine bought a /used/ car and it has built-in tire pressure sensors. She got a warning when one of the tires was low. Since the car was used, that means the technology must have been around for a while now. Wife's car has these sensors. One went bad and showed tire to be under inflated when it was inflated to the proper pressure. Dealer charged $100 for a new sensor and $100 to put it in. I would have been tempted to put a piece of masking tape over the red warning light. I have the same model car but older without the sensors and I've never been worried about it. I rented a Toyota that had a screen that showed the pressure of each tire. Warning light came on but did not say which tire and I had to check them all with my gauge. Being a rental car, they varied by about 10 psi. Our masters in DC have mandated this. Can't wait for the mandated backup camera - more expensive **** to go bad. I don't think they have yet mandated that when this expensive **** goes bad it has to be repaired. not yet, anyway. |
Tire pressure
Stormin Mormon wrote in
: On 12/12/2014 10:09 AM, rbowman wrote: KenK wrote: I had an interesting? thought. Why doesn't someone come out with a gauge that you push against the side of the tire that measures the deflection? Beats removing a cap and fooling with a fussy tire air pressure gauge. It might need to be calibrated by the user with a regular gauge depending on type of tire. I'd buy one (if it didn't cost an arm and a leg). What do you think? I think it would be difficult to calibrate and have a cost considerably higher than a $2.95 Slime pencil type tire gauge. I picked the Slime brand because a review in a motorcycle magazine, where people tend to be less casual about tire pressures, found it as good as any and better than most, including the upscale digital models. A decade or more ago I was in a store. They had tire pressure gauges, and for a dollar more, Radial tire pressure gauges. - . Christopher A. Young Learn about Jesus www.lds.org . That radial air keeps twisting around and is much harder to measure. -- You know it's time to clean the refrigerator when something closes the door from the inside. |
Tire pressure
On 12/12/2014 12:46 PM, KenK wrote:
Stormin Mormon wrote in : On 12/12/2014 10:09 AM, rbowman wrote: KenK wrote: I had an interesting? thought. Why doesn't someone come out with a gauge that you push against the side of the tire that measures the deflection? Beats removing a cap and fooling with a fussy tire air pressure gauge. It might need to be calibrated by the user with a regular gauge depending on type of tire. I'd buy one (if it didn't cost an arm and a leg). What do you think? I think it would be difficult to calibrate and have a cost considerably higher than a $2.95 Slime pencil type tire gauge. I picked the Slime brand because a review in a motorcycle magazine, where people tend to be less casual about tire pressures, found it as good as any and better than most, including the upscale digital models. A decade or more ago I was in a store. They had tire pressure gauges, and for a dollar more, Radial tire pressure gauges. - . Christopher A. Young Learn about Jesus www.lds.org . That radial air keeps twisting around and is much harder to measure. But people with nitrogen filled tires need a nitrogen gauge. |
Tire pressure
On 12/12/2014 9:40 AM, KenK wrote:
From time to time this subject has come up. I had an interesting? thought. Why doesn't someone come out with a gauge that you push against the side of the tire that measures the deflection? Beats removing a cap and fooling with a fussy tire air pressure gauge. It might need to be calibrated by the user with a regular gauge depending on type of tire. I'd buy one (if it didn't cost an arm and a leg). What do you think? If someone can't remove a cap and gauge a tire in under 15 seconds, I doubt they have the mentality to properly use a tire pushed gauge as you suggested. |
Tire pressure
On Friday, December 12, 2014 9:00:40 AM UTC-8, dpb wrote:
On 12/12/2014 9:16 AM, philo wrote: ... The industry is one step ahead of that. A friend of mine bought a /used/ car and it has built-in tire pressure sensors. She got a warning when one of the tires was low. Since the car was used, that means the technology must have been around for a while now. Probably close to 10 yr if not longer; not sure whether it's yet in the "mandatory" column for new or not but haven't had a vehicle without it since an '06 model LeSabre that had them. Yes, it is mandatory and has been for several years. The other "nice" part is if you run two sets of mounted tires (winter/summer), the second set also has to have them and that runs big bucks. Harry K |
Tire pressure
On 12 Dec 2014 14:40:17 GMT, KenK wrote:
From time to time this subject has come up. I had an interesting? thought. Why doesn't someone come out with a gauge that you push against the side of the tire that measures the deflection? Beats removing a cap and fooling with a fussy tire air pressure gauge. It might need to be calibrated by the user with a regular gauge depending on type of tire. I'd buy one (if it didn't cost an arm and a leg). What do you think? I gave up on tire gauges years ago. I can thump a tire, which is hit it with my fist, and tell by the sound when it's at the proper level. When checked with a gauge, I'm always nearly exact to the proper inflation. Of course this is something that you cant just learn. But in my older age, I just know the right sound. Tire gauges are cheap, but no matter where you put them, they are never found when needed it seems. |
Tire pressure
On 12/12/2014 12:05 PM, Harry K wrote:
On Friday, December 12, 2014 9:00:40 AM UTC-8, dpb wrote: .... Probably close to 10 yr if not longer; not sure whether it's yet in the "mandatory" column for new or not but haven't had a vehicle without it since an '06 model LeSabre that had them. Yes, it is mandatory and has been for several years. The other "nice" part is if you run two sets of mounted tires (winter/summer), the second set also has to have them and that runs big bucks. Don't see why that is a "must", necessarily. Of course, the system won't function correctly without them, but don't see anything that would make it mandatory. I've not run a second set of rims on a passenger vehicle in at least 40 years; doubt if there's one in ten-thousand that do... -- |
Tire pressure
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Tire pressure
In response to a question about how the tire low inflation works, there are two types. THe newest one uses actual pressure monitor in thevalve stem. The older version, compared the number of revolutions of tires compared to the revolutions of the other tires. If one tire, over a period of maybe a mile or two, showed a highernumber of revolutions, that tire would be likely to be low on pressure unles the vehicle was driven in circles for a long time.
-- You know it's time to clean the refrigerator when something closes the door from the inside. |
Tire pressure
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Tire pressure
On Fri, 12 Dec 2014 13:40:16 -0600, dpb wrote:
On 12/12/2014 12:07 PM, wrote: ... I gave up on tire gauges years ago. I can thump a tire, which is hit it with my fist, and tell by the sound when it's at the proper level. When checked with a gauge, I'm always nearly exact to the proper inflation. Of course this is something that you cant just learn. But in my older age, I just know the right sound. Tire gauges are cheap, but no matter where you put them, they are never found when needed it seems. I'd be willing to put that to a controlled test/demonstration... :) Checking it with the tire gauge WAS the test. I should have mentioned that this is only for cars or small truck tires. You cant do it on bicycle tires, wheelbarrow tires or anything small. I have a farm tractor, and those big tires have a totally different sound. I normally find a gauge for them, or the small tires. Of course wheelbarrow tires are not critical. Just dont over inflate or they blow up. |
Tire pressure
BenignBodger wrote:
On 12/12/2014 9:40 AM, KenK wrote: From time to time this subject has come up. I had an interesting? thought. Why doesn't someone come out with a gauge that you push against the side of the tire that measures the deflection? Beats removing a cap and fooling with a fussy tire air pressure gauge. It might need to be calibrated by the user with a regular gauge depending on type of tire. I'd buy one (if it didn't cost an arm and a leg). What do you think? Besides the difference among tires' sidewall construction and stiffness you would also have to contend with 'where' the deflection was measured and what the material's temperature was and, just guessing, that the sidewall stiffness probably changes with age and mileage. Better to wait until all TPMS systems catch up with the most advanced types which give a direct readout of each tire's pressure rather than the present 'too low' indication. Also temperature. Higher speed rating tires have heavier sidewalls. That's why you should never mix speed ratings. Greg |
Tire pressure
On Fri, 12 Dec 2014 11:39:32 -0500, Frank
wrote in Wife's car has these sensors. One went bad and showed tire to be under inflated when it was inflated to the proper pressure. Dealer charged $100 for a new sensor and $100 to put it in. That's what those sensors are for: making $$$ for the dealers. I would have been tempted to put a piece of masking tape over the red warning light. I have the same model car but older without the sensors and I've never been worried about it. That's exactly what I did... five years ago. -- Web based forums are like subscribing to 10 different newspapers and having to visit 10 different news stands to pickup each one. Email list-server groups and USENET are like having all of those newspapers delivered to your door every morning. |
Tire pressure
On 12/12/2014 12:51 PM, Meanie wrote:
On 12/12/2014 12:46 PM, KenK wrote: A decade or more ago I was in a store. They had tire pressure gauges, and for a dollar more, Radial tire pressure gauges. That radial air keeps twisting around and is much harder to measure. But people with nitrogen filled tires need a nitrogen gauge. I expect a coupon in the mail, one day soon. Harbor Freight will have a 20% off sale on left handed nitrogen filled radial tire gauges which measure tire side wall deflection. Comes with first set of batteries. - .. Christopher A. Young Learn about Jesus www.lds.org .. |
Tire pressure
On Fri, 12 Dec 2014 11:21:32 -0600, philo* wrote:
On 12/12/2014 10:56 AM, Ed Pawlowski wrote: On 12/12/2014 10:16 AM, philo wrote: The industry is one step ahead of that. A friend of mine bought a /used/ car and it has built-in tire pressure sensors. She got a warning when one of the tires was low. Since the car was used, that means the technology must have been around for a while now. Huh? You can buy cars less than a year old as "used". The technology has been around over five years though. My friends cannot afford "late model" used cars. Half my friends don't even own a car. Well, I don't know any of your friends. Not that I think about it, my 2001 LeSabre had a low pressure indicator so the technology goes back quite a ways. |
Tire pressure
On 12/12/2014 11:00 AM, dpb wrote:
[snip] The '06 was the "one is bad, not indication of which" variety of indicator but all since all have at least an indication of which but since '10 all have digital readout on each tire. I was visiting a friend who had bought a new pickup at about that time, and it had one like that. The light came on and he checked all 4 tires on the ground. None of them were low. It was the spare tire. On this pickup, the spare tire is mounted under the bed, with the valve up (and so inaccessible), making it hard to check. He put it back on with the valve down. BTW, is these some benefit to having the valve up (and hidden)? -- 12 days until the winter celebration (Thursday December 25, 2014 12:00:00 AM for 1 day). Mark Lloyd http://notstupid.us "All great ideas are dangerous." -- Oscar Wilde |
Tire pressure
On 12/13/2014 11:50 AM, Mark Lloyd wrote:
On 12/12/2014 11:00 AM, dpb wrote: [snip] The '06 was the "one is bad, not indication of which" variety of indicator but all since all have at least an indication of which but since '10 all have digital readout on each tire. I was visiting a friend who had bought a new pickup at about that time, and it had one like that. The light came on and he checked all 4 tires on the ground. None of them were low. It was the spare tire. On this pickup, the spare tire is mounted under the bed, with the valve up (and so inaccessible), making it hard to check. He put it back on with the valve down. BTW, is these some benefit to having the valve up (and hidden)? Now, w/o a full-size spare, not sure any have the sensor in the spare...and don't think have ever had one even with the full-size rim that had it in the spare. Certainly never had any indication of such on any vehicle I've had (bunch of GM and one Chrysler in the lot). Other than possibly minimizing vandalism and the very rare chance of a thrown rock or the like damaging the stem can't think of any. Altho I've had some that the hanger would only allow the rim to sit that way as the centering portion was too high for the recess otherwise. OTOMH can't think of which way any of the current three are...haven't had to use the spare in years (which is actually quite an unusual occurrence come to think of it with the number of flats get from stuff in the dirt road that gets turned over almost every time they grade them. Of course, the car tires aren't as rugged so small stuff that gets them doesn't always actually cause a puncture in the trucks... -- |
Tire pressure
Mark Lloyd wrote in news:m%_iw.916693
: On this pickup, the spare tire is mounted under the bed, with the valve up (and so inaccessible), making it hard to check. I had a pickup like that. I soon put an eyebolt in the truck bed, and chained the spare to it. Drove like that for over 20 years. Seldom needed it but when I did was a lot more convenient. And especially convenient to check air pressure. -- You know it's time to clean the refrigerator when something closes the door from the inside. |
Tire pressure
"dpb" wrote in message ... Now, w/o a full-size spare, not sure any have the sensor in the spare...and don't think have ever had one even with the full-size rim that had it in the spare. Certainly never had any indication of such on any vehicle I've had (bunch of GM and one Chrysler in the lot). The one for my Toyoto 2007 truck had a sensor in the spare tire. Now that truck has a bad sensor on one of the wheels, and a 2008 Camry has a bad sensor also. Two differant places gave me a price of $ 50 and $ 70 to replace them. I just let it go. They probably all will need to be replaced soon. --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com |
Tire pressure
Frank wrote:
Wife's car has these sensors. One went bad and showed tire to be under inflated when it was inflated to the proper pressure. Dealer charged $100 for a new sensor and $100 to put it in. I would have been tempted to put a piece of masking tape over the red warning light. I have the same model car but older without the sensors and I've never been worried about it. I have the studs mounted on a set of rims that don't have the TPMS sensors. The orange light flashes a few times when I start up and then goes solid. It's not annoying enough to bother taping particularly since the panel is in the center of the dash. |
Tire pressure
philo wrote:
The industry is one step ahead of that. A friend of mine bought a /used/ car and it has built-in tire pressure sensors. She got a warning when one of the tires was low. Since the car was used, that means the technology must have been around for a while now. It has been but the OP was asking for an alternative to a pressure gauge. For example I have a set of aftermarket rims that I have the studs mounted on. They don't have the sensors and for the price of 4 sensors I can check the pressure periodically. |
Tire pressure
dpb wrote:
Probably close to 10 yr if not longer; not sure whether it's yet in the "mandatory" column for new or not but haven't had a vehicle without it since an '06 model LeSabre that had them. http://www.nhtsa.gov/cars/rules/ruli...nalrule.6.html Since 2008, the way I read it. Scroll down to the ' D. Impacts of the Final Rule' section. The estimate was TPMS might save 120 lives per year and the sensor system would cost more than any payback from fuel efficiency or tire mileage. In 2012 there were 33,561 traffic fatalities. This is down from 41,259 in 2007 though I expect people not being able to afford gasoline may swamp out any tire pressure problems. |
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