Anyone think those are a money saving devices? I just learned that
the sensors in tires should be replaced every time you buy tires and
they are over 40 bucks per tire.

The cost would seem to outweigh any savings from preventing any
improper tire wear.

Metspitzer wrote:
Anyone think those are a money saving devices? I just learned that
the sensors in tires should be replaced every time you buy tires and
they are over 40 bucks per tire.

I'm pretty sure they are supposed to be "reset"--not trivial, but takes
less than 5 minutes after you spend 10 minutes reading the directions in
your owners manual.

The cost would seem to outweigh any savings from preventing any
improper tire wear.

It's more about safety than anything, and helped keep the SUV markets
alive when roll overs were happening with them. Next time ur on the
highway and a big arse SUV is running along side or coming at you, it
would be best if it had enough air in it's tires.

http://en.wikipedia.org/wiki/Tire-pr...itoring_system

On 10/23/2013 6:48 PM, Metspitzer wrote:
Anyone think those are a money saving devices? I just learned that
the sensors in tires should be replaced every time you buy tires and
they are over 40 bucks per tire.

The cost would seem to outweigh any savings from preventing any
improper tire wear.

"Money saving?" for a passenger vehicle? No, not really unless one paid
no attention otherwise it's possible. They are a safety feature that is
worthwhile imo; again if paid attention to when indicate low pressure.
For commercial I think there's no question of "yes" than can easily be
cost effective...

Where did you hear they need to be replaced every tire change? I've
vehicles well over 10 yo with them and have never replaced a single one
and they still check out w/ a gauge.

The firmware has to be reset for a reference point after one has been
off the rim but that's just mashing a couple of buttons on the control
panel--just how depends on the vehicle, of course.

--

On 10/23/13 7:48 PM, Metspitzer wrote:
Anyone think those are a money saving devices? I just learned that
the sensors in tires should be replaced every time you buy tires and
they are over 40 bucks per tire.

The cost would seem to outweigh any savings from preventing any
improper tire wear.


Where is this "every time" idea documented ??

Depending on which style of sensor is used, only the rubber valve stem
needs replaced with a repair/rebuild kit like this:

http://tinyurl.com/n8txtoj

or

http://www.carparts.com/details/Toyo...2d4A odOjsA6w

Do a little reading he
http://www.tirerack.com/tires/tirete...jsp?techid=152

Bill wrote:
Metspitzer wrote:
Anyone think those are a money saving devices? I just learned that
the sensors in tires should be replaced every time you buy tires and
they are over 40 bucks per tire.

I'm pretty sure they are supposed to be "reset"--not trivial, but takes
less than 5 minutes after you spend 10 minutes reading the directions in
your owners manual.

The cost would seem to outweigh any savings from preventing any
improper tire wear.


Hi,
IMO, that's a matter of personal opinion. Our cars came with it on both
summer tires and winter tires which has Nitrogen gas inflated. I like
it as a safety feature.

Metspitzer wrote in
:

Anyone think those are a money saving devices?



They're not meant to be money saving.

They're meant to satisfy an NHTSA safety regulation that all tires have
their pressures monitored by an on-board computer.

The idea is that you'll thus be less likely to have a blowout that might
cause the vehicle to crash and kill you. Not that that's particularly
likely anyway, but once activists and bureaucrats get a bee in their
bonnets, there's no stopping them.


I just learned that
the sensors in tires should be replaced every time you buy tires


Who told you that? It's wrong. The TMPS sensor should unscrew from the
valve stem, allowing it to be transferred to the new valve stem that will
come with the new tire.



--
Tegger

On 10/23/2013 7:48 PM, Metspitzer wrote:
Anyone think those are a money saving devices? I just learned that
the sensors in tires should be replaced every time you buy tires and
they are over 40 bucks per tire.

Lemme guess...the tire store told you that.

On 10/23/2013 8:31 PM, Bill wrote:
Metspitzer wrote:
Anyone think those are a money saving devices? I just learned that
the sensors in tires should be replaced every time you buy tires and
they are over 40 bucks per tire.

I'm pretty sure they are supposed to be "reset"--not trivial, but takes
less than 5 minutes after you spend 10 minutes reading the directions in
your owners manual.

Not on my vehicle (the 5 minutes).

On 10/23/2013 8:50 PM, dpb wrote:
On 10/23/2013 6:48 PM, Metspitzer wrote:
Anyone think those are a money saving devices? I just learned that
the sensors in tires should be replaced every time you buy tires and
they are over 40 bucks per tire.

The cost would seem to outweigh any savings from preventing any
improper tire wear.

"Money saving?" for a passenger vehicle? No, not really unless one paid
no attention otherwise it's possible. They are a safety feature that is
worthwhile imo; again if paid attention to when indicate low pressure.

So just ignore over inflated?

On Wed, 23 Oct 2013 19:46:56 -0500, Fat-Dumb and Happy
wrote:

It's more about safety than anything, and helped keep the SUV markets
alive when roll overs were happening with them. Next time ur on the
highway and a big arse SUV is running along side or coming at you, it
would be best if it had enough air in it's tires.

http://en.wikipedia.org/wiki/Tire-pr...itoring_system

That would make more sense.

On Wed, 23 Oct 2013 19:50:38 -0500, dpb wrote:

On 10/23/2013 6:48 PM, Metspitzer wrote:
Anyone think those are a money saving devices? I just learned that
the sensors in tires should be replaced every time you buy tires and
they are over 40 bucks per tire.

The cost would seem to outweigh any savings from preventing any
improper tire wear.

"Money saving?" for a passenger vehicle? No, not really unless one paid
no attention otherwise it's possible. They are a safety feature that is
worthwhile imo; again if paid attention to when indicate low pressure.
For commercial I think there's no question of "yes" than can easily be
cost effective...

Where did you hear they need to be replaced every tire change? I've
vehicles well over 10 yo with them and have never replaced a single one
and they still check out w/ a gauge.

This came as second hand info from my sister.

The firmware has to be reset for a reference point after one has been
off the rim but that's just mashing a couple of buttons on the control
panel--just how depends on the vehicle, of course.

On 10/23/2013 8:50 PM, dpb wrote:
On 10/23/2013 6:48 PM, Metspitzer wrote:
Anyone think those are a money saving devices? I just learned that
the sensors in tires should be replaced every time you buy tires and
they are over 40 bucks per tire.

The cost would seem to outweigh any savings from preventing any
improper tire wear.

"Money saving?" for a passenger vehicle? No, not really unless one paid
no attention otherwise it's possible. They are a safety feature that is
worthwhile imo; again if paid attention to when indicate low pressure.
For commercial I think there's no question of "yes" than can easily be
cost effective...

Where did you hear they need to be replaced every tire change? I've
vehicles well over 10 yo with them and have never replaced a single one
and they still check out w/ a gauge.

The firmware has to be reset for a reference point after one has been
off the rim but that's just mashing a couple of buttons on the control
panel--just how depends on the vehicle, of course.

Snipped and hit send by mistake above......this is what I have to
do....and it's a PITA.

There are two different ways to relearn your Tire Pressure Monitoring
System (TPMS). One is with a TPMS scan tool (this is the preferred
method) and the other is the manual method (pain in the "you-know what",
but requires no special tools or equipment).

To use the manual method, set the parking brake. Enter into TPMS RELEARN
using the Driver Information Center (DIC) controls. (SEE Owner's Manual)

When you have successfully entered TPMS RELEARN, the horn will chirp and
the left front turn signal will illuminate. Increase or decrease the
tire inflation pressure on the left front tire for 8 to 10 seconds. The
horn will "chirp", indicating that the left front tire pressure sensor
has been relearned and the turn signal at the right front will
illuminate. Repeat the process for the right front tire. The horn will
chirp and the right rear turn signal will illuminate indicating that the
right front tire has been relearned and now you must now repeat the
process at the right rear tire. Then you will have to repeat this a
fourth time at the left rear. When the left rear tire has been
relearned, the horn will sound a "double chirp" indicating that the
relearn process has successfully completed.

On 10/23/2013 10:41 PM, Metspitzer wrote:
On Wed, 23 Oct 2013 19:50:38 -0500, dpb wrote:

On 10/23/2013 6:48 PM, Metspitzer wrote:
Anyone think those are a money saving devices? I just learned that
the sensors in tires should be replaced every time you buy tires and
they are over 40 bucks per tire.

The cost would seem to outweigh any savings from preventing any
improper tire wear.

"Money saving?" for a passenger vehicle? No, not really unless one paid
no attention otherwise it's possible. They are a safety feature that is
worthwhile imo; again if paid attention to when indicate low pressure.
For commercial I think there's no question of "yes" than can easily be
cost effective...

Where did you hear they need to be replaced every tire change? I've
vehicles well over 10 yo with them and have never replaced a single one
and they still check out w/ a gauge.

This came as second hand info from my sister.

And the "tire store" told your sister this? I'm just guessing here, but
I think it's a good guess.

On 10/23/2013 7:46 PM, Fat-Dumb and Happy wrote:
It's more about safety than anything, and helped keep the SUV markets
alive when roll overs were happening with them. Next time ur on the
highway and a big arse SUV is running along side or coming at you, it
would be best if it had enough air in it's tires.

http://en.wikipedia.org/wiki/Tire-pr...itoring_system

I remember while I was driving my full sized V8 powered Dodge van when
something like a Toyota SUV pulled up next to me and the damned thing
was bigger than my van. Geeez! o_O

TDD

Ron wrote:
On 10/23/2013 8:50 PM, dpb wrote:
On 10/23/2013 6:48 PM, Metspitzer wrote:
Anyone think those are a money saving devices? I just learned that
the sensors in tires should be replaced every time you buy tires and
they are over 40 bucks per tire.

The cost would seem to outweigh any savings from preventing any
improper tire wear.

"Money saving?" for a passenger vehicle? No, not really unless one paid
no attention otherwise it's possible. They are a safety feature that is
worthwhile imo; again if paid attention to when indicate low pressure.
For commercial I think there's no question of "yes" than can easily be
cost effective...

Where did you hear they need to be replaced every tire change? I've
vehicles well over 10 yo with them and have never replaced a single one
and they still check out w/ a gauge.

The firmware has to be reset for a reference point after one has been
off the rim but that's just mashing a couple of buttons on the control
panel--just how depends on the vehicle, of course.

Snipped and hit send by mistake above......this is what I have to
do....and it's a PITA.

There are two different ways to relearn your Tire Pressure Monitoring
System (TPMS). One is with a TPMS scan tool (this is the preferred
method) and the other is the manual method (pain in the "you-know
what", but requires no special tools or equipment).

To use the manual method, set the parking brake. Enter into TPMS
RELEARN using the Driver Information Center (DIC) controls. (SEE
Owner's Manual)

When you have successfully entered TPMS RELEARN, the horn will chirp
and the left front turn signal will illuminate. Increase or decrease
the tire inflation pressure on the left front tire for 8 to 10
seconds. The horn will "chirp", indicating that the left front tire
pressure sensor has been relearned and the turn signal at the right
front will illuminate. Repeat the process for the right front tire.
The horn will chirp and the right rear turn signal will illuminate
indicating that the right front tire has been relearned and now you
must now repeat the process at the right rear tire. Then you will have
to repeat this a fourth time at the left rear. When the left rear tire
has been relearned, the horn will sound a "double chirp" indicating
that the relearn process has successfully completed.

Yep, that's how I did it! I had to read it a couple of times before I
believed it! LOL

Tegger wrote:
Metspitzer wrote in
:

Anyone think those are a money saving devices?


They're not meant to be money saving.

They're meant to satisfy an NHTSA safety regulation that all tires have
their pressures monitored by an on-board computer.

The idea is that you'll thus be less likely to have a blowout that might
cause the vehicle to crash and kill you. Not that that's particularly
likely anyway, but once activists and bureaucrats get a bee in their
bonnets, there's no stopping them.


I just learned that
the sensors in tires should be replaced every time you buy tires

Who told you that? It's wrong. The TMPS sensor should unscrew from the
valve stem, allowing it to be transferred to the new valve stem that will
come with the new tire.



I was under the impression the sensor was viewing a profile of the
tire. I could be wrong, but I don't think there is anything attached to
the valve stem!

On 10/23/2013 11:41 PM, Bill wrote:
Ron wrote:
On 10/23/2013 8:50 PM, dpb wrote:
On 10/23/2013 6:48 PM, Metspitzer wrote:
Anyone think those are a money saving devices? I just learned that
the sensors in tires should be replaced every time you buy tires and
they are over 40 bucks per tire.

The cost would seem to outweigh any savings from preventing any
improper tire wear.

"Money saving?" for a passenger vehicle? No, not really unless one paid
no attention otherwise it's possible. They are a safety feature that is
worthwhile imo; again if paid attention to when indicate low pressure.
For commercial I think there's no question of "yes" than can easily be
cost effective...

Where did you hear they need to be replaced every tire change? I've
vehicles well over 10 yo with them and have never replaced a single one
and they still check out w/ a gauge.

The firmware has to be reset for a reference point after one has been
off the rim but that's just mashing a couple of buttons on the control
panel--just how depends on the vehicle, of course.

Snipped and hit send by mistake above......this is what I have to
do....and it's a PITA.

There are two different ways to relearn your Tire Pressure Monitoring
System (TPMS). One is with a TPMS scan tool (this is the preferred
method) and the other is the manual method (pain in the "you-know
what", but requires no special tools or equipment).

To use the manual method, set the parking brake. Enter into TPMS
RELEARN using the Driver Information Center (DIC) controls. (SEE
Owner's Manual)

When you have successfully entered TPMS RELEARN, the horn will chirp
and the left front turn signal will illuminate. Increase or decrease
the tire inflation pressure on the left front tire for 8 to 10
seconds. The horn will "chirp", indicating that the left front tire
pressure sensor has been relearned and the turn signal at the right
front will illuminate. Repeat the process for the right front tire.
The horn will chirp and the right rear turn signal will illuminate
indicating that the right front tire has been relearned and now you
must now repeat the process at the right rear tire. Then you will have
to repeat this a fourth time at the left rear. When the left rear tire
has been relearned, the horn will sound a "double chirp" indicating
that the relearn process has successfully completed.

Yep, that's how I did it! I had to read it a couple of times before I
believed it! LOL

And you need two people to do it.

"Ron" wrote in message
...

There are two different ways to relearn your Tire Pressure Monitoring
System (TPMS). One is with a TPMS scan tool (this is the preferred
method) and the other is the manual method (pain in the "you-know
what", but requires no special tools or equipment).

To use the manual method, set the parking brake. Enter into TPMS
RELEARN using the Driver Information Center (DIC) controls. (SEE
Owner's Manual)

When you have successfully entered TPMS RELEARN, the horn will chirp
and the left front turn signal will illuminate. Increase or decrease
the tire inflation pressure on the left front tire for 8 to 10
seconds. The horn will "chirp", indicating that the left front tire
pressure sensor has been relearned and the turn signal at the right
front will illuminate. Repeat the process for the right front tire.
The horn will chirp and the right rear turn signal will illuminate
indicating that the right front tire has been relearned and now you
must now repeat the process at the right rear tire. Then you will have
to repeat this a fourth time at the left rear. When the left rear tire
has been relearned, the horn will sound a "double chirp" indicating
that the relearn process has successfully completed.

Yep, that's how I did it! I had to read it a couple of times before I
believed it! LOL

And you need two people to do it.

Are you serious about this ?

What kind of vehicle ?

My Toyota only requires a simple press of a button.

I have seen where you may have to do something like that to reset or use
another of the door unlocks.

On 10/23/2013 9:45 PM, Tegger wrote:
Metspitzer wrote


I just learned that
the sensors in tires should be replaced every time you buy tires


Who told you that? It's wrong. The TMPS sensor should unscrew from the
valve stem, allowing it to be transferred to the new valve stem that will
come with the new tire.

I'll just stick with my factory aluminum vale stems when I need a tire
change.

On 10/24/2013 12:10 AM, Ralph Mowery wrote:

"Ron" wrote in message
...

There are two different ways to relearn your Tire Pressure Monitoring
System (TPMS). One is with a TPMS scan tool (this is the preferred
method) and the other is the manual method (pain in the "you-know
what", but requires no special tools or equipment).

To use the manual method, set the parking brake. Enter into TPMS
RELEARN using the Driver Information Center (DIC) controls. (SEE
Owner's Manual)

When you have successfully entered TPMS RELEARN, the horn will chirp
and the left front turn signal will illuminate. Increase or decrease
the tire inflation pressure on the left front tire for 8 to 10
seconds. The horn will "chirp", indicating that the left front tire
pressure sensor has been relearned and the turn signal at the right
front will illuminate. Repeat the process for the right front tire.
The horn will chirp and the right rear turn signal will illuminate
indicating that the right front tire has been relearned and now you
must now repeat the process at the right rear tire. Then you will have
to repeat this a fourth time at the left rear. When the left rear tire
has been relearned, the horn will sound a "double chirp" indicating
that the relearn process has successfully completed.

Yep, that's how I did it! I had to read it a couple of times before I
believed it! LOL

And you need two people to do it.

Are you serious about this ?

What kind of vehicle ?

My Toyota only requires a simple press of a button.

I have seen where you may have to do something like that to reset or use
another of the door unlocks.



Chevy...and yes, that is how you have to do it.

Toyota have always been ahead of everyone else (IMO).

My '88 Supra has standard features that still aren't standard features
on most newer/modern cars.

On 10/23/2013 7:48 PM, Metspitzer wrote:
Anyone think those are a money saving devices? I just learned that
the sensors in tires should be replaced every time you buy tires and
they are over 40 bucks per tire.

The cost would seem to outweigh any savings from preventing any
improper tire wear.


Don't believe so but one went bad in wife's Subaru and it cost $200 to
have replaced.

How did we survive all these years without these?
Thank the *******s, you know where.

Bill wrote in
:



I was under the impression the sensor was viewing a profile of the
tire.



All the sensor does is detect the absolute pressure inside the tire; it
doesn't care about anything else.

Some types of sensors are unique to each tire, and communicate with a
receiver mounted on the body near that tire, which then talks to the TPMS
computer. Other types communicate directly with the TPMS computer, meaning
the computer doesn't know which tire is low, and you need to check all
four.

The "unique sensor" type seems to be found mostly on vehicles marketed as
higher-end.



I could be wrong, but I don't think there is anything attached
to the valve stem!



If the stem is metal, then you have a sensor screwed to the other end of
the stem.

If the stem is rubber, then there is nothing attached to the stem; instead,
TPMS uses the ABS to infer pressure differential from tire to ti too
great a difference in rotational speeds, then one tire is lower than the
other.


--
Tegger

On 10/23/2013 11:54 PM, Ron wrote:
On 10/23/2013 11:41 PM, Bill wrote:
Ron wrote:
On 10/23/2013 8:50 PM, dpb wrote:
On 10/23/2013 6:48 PM, Metspitzer wrote:
Anyone think those are a money saving devices? I just learned that
the sensors in tires should be replaced every time you buy tires and
they are over 40 bucks per tire.

The cost would seem to outweigh any savings from preventing any
improper tire wear.

"Money saving?" for a passenger vehicle? No, not really unless one
paid
no attention otherwise it's possible. They are a safety feature
that is
worthwhile imo; again if paid attention to when indicate low pressure.
For commercial I think there's no question of "yes" than can easily be
cost effective...

Where did you hear they need to be replaced every tire change? I've
vehicles well over 10 yo with them and have never replaced a single one
and they still check out w/ a gauge.

The firmware has to be reset for a reference point after one has been
off the rim but that's just mashing a couple of buttons on the control
panel--just how depends on the vehicle, of course.

Snipped and hit send by mistake above......this is what I have to
do....and it's a PITA.

There are two different ways to relearn your Tire Pressure Monitoring
System (TPMS). One is with a TPMS scan tool (this is the preferred
method) and the other is the manual method (pain in the "you-know
what", but requires no special tools or equipment).

To use the manual method, set the parking brake. Enter into TPMS
RELEARN using the Driver Information Center (DIC) controls. (SEE
Owner's Manual)

When you have successfully entered TPMS RELEARN, the horn will chirp
and the left front turn signal will illuminate. Increase or decrease
the tire inflation pressure on the left front tire for 8 to 10
seconds. The horn will "chirp", indicating that the left front tire
pressure sensor has been relearned and the turn signal at the right
front will illuminate. Repeat the process for the right front tire.
The horn will chirp and the right rear turn signal will illuminate
indicating that the right front tire has been relearned and now you
must now repeat the process at the right rear tire. Then you will have
to repeat this a fourth time at the left rear. When the left rear tire
has been relearned, the horn will sound a "double chirp" indicating
that the relearn process has successfully completed.

Yep, that's how I did it! I had to read it a couple of times before I
believed it! LOL

And you need two people to do it.

No, I've done it by myself on two different Buick's (6 years
apart)--same process.

wrote in :



This isn't all SUVs, it was certain Ford Explorers with a SUV body on
a passenger car suspension and the wrong tires spec'ed because Ford
was in bed with Firestone.



Not quite.

Ford was seeking a softer ride for the Explorer, so they specified a lower
pressure than Firestone spec'ed for that tire. The problem was that by
spec'ing such a low pressure they removed the safety factor, meaning that
only a little pressure could be lost before the tire was in danger of
overheating. Then one day an Explorer in Texas during a heat wave had a
low-pressure situation, a tire blew, the vehicle rolled and somebody died.
I can't quite remember now, but I believe the deceased was beltless.

Ford tried to blame Firestone, which did their own investigation,
discovered the non-authorized pressure setting, and disclaimed
responsibility. Then the lawyers and activists got involved and we now have
mandated TPMS. Never mind that Texas-type incidents are vanishingly rare
("if it saves just one life!"; "it's for the Children!").





They are hitting a fly with a huge government sledge hammer.



An expensive and troublesome government sledgehammer. I've noticed a
surprising number of people just ignoring the light. They check the
pressures and they're all apparently fine, so they give up.


--
Tegger

On 10/24/2013 8:22 AM, Tegger wrote:
Bill wrote in

I could be wrong, but I don't think there is anything attached
to the valve stem!



If the stem is metal, then you have a sensor screwed to the other end of
the stem.

If the stem is rubber, then there is nothing attached to the stem; instead,
TPMS uses the ABS to infer pressure differential from tire to ti too
great a difference in rotational speeds, then one tire is lower than the
other.




Thank you for providing an explanation.

Bill

On 10/23/2013 10:41 PM, Bill wrote:
Ron wrote:
On 10/23/2013 8:50 PM, dpb wrote:
....

The firmware has to be reset for a reference point after one has been
off the rim but that's just mashing a couple of buttons on the control
panel--just how depends on the vehicle, of course.

....


To use the manual method, set the parking brake. Enter into TPMS
RELEARN using the Driver Information Center (DIC) controls. (SEE
Owner's Manual)

When you have successfully entered TPMS RELEARN, the horn will chirp
and the left front turn signal will illuminate. Increase or decrease
the tire inflation pressure on the left front tire for 8 to 10
seconds. The horn will "chirp", indicating that the left front tire
pressure sensor has been relearned and the turn signal at the right
front will illuminate. Repeat the process for the right front tire.
The horn will chirp and the right rear turn signal will illuminate
indicating that the right front tire has been relearned and now you
must now repeat the process at the right rear tire. Then you will have
to repeat this a fourth time at the left rear. When the left rear tire
has been relearned, the horn will sound a "double chirp" indicating
that the relearn process has successfully completed.

Yep, that's how I did it! I had to read it a couple of times before I
believed it! LOL

What in the world vehicle is this on???? Some firmware engineer needs
firing over that one...

GM vehicles are simply manually set pressure w/ tire gauge to desired
and then hit a 'Reset' button on the monitor screen...there are very
slight differences in where the function's hid but if you've done one
you can figure out any other that I've seen w/ only a few tries...

--

On 10/23/2013 9:38 PM, Ron wrote:
On 10/23/2013 8:50 PM, dpb wrote:
On 10/23/2013 6:48 PM, Metspitzer wrote:
Anyone think those are a money saving devices? I just learned that
the sensors in tires should be replaced every time you buy tires and
they are over 40 bucks per tire.

The cost would seem to outweigh any savings from preventing any
improper tire wear.

"Money saving?" for a passenger vehicle? No, not really unless one paid
no attention otherwise it's possible. They are a safety feature that is
worthwhile imo; again if paid attention to when indicate low pressure.

So just ignore over inflated?

Well, DOH!, no, but it's far less of an occurrence other than perhaps
after a flat repair or the like. Plus, in general most current
passenger tires are rated for 40 or so psi as max and they'll actually
run cooler (albeit harsher ride) at the higher pressures so it's pretty
unlikely to ever have one high enough to actually be a real concern...

Possible, sure, but not very likely particularly in comparison to
under-inflated which is both more likely from starting at low
recommended pressures with any leakage and that low pressure equates to
more sidewall flexure which is more heat which is the real culprit in
causing failures at speed. There's secondary contributor to
excessive/uneven treadwear of course.

--

On 10/23/2013 07:48 PM, Metspitzer wrote:
Anyone think those are a money saving devices? I just learned that
the sensors in tires should be replaced every time you buy tires and
they are over 40 bucks per tire.

The cost would seem to outweigh any savings from preventing any
improper tire wear.


Not true... they last about 5 years as long as they aren't abused by an
idiot that doesn't know how to mount and dismount tires.

But yes, they are expensive. about $50/wheel for my BMW (well, a lot
more if you shop at the BMW dealership)

nate

--
replace "roosters" with "cox" to reply.
http://members.cox.net/njnagel

On 10/24/2013 08:22 AM, Tegger wrote:
Bill wrote in
:



I was under the impression the sensor was viewing a profile of the
tire.



All the sensor does is detect the absolute pressure inside the tire; it
doesn't care about anything else.

Some types of sensors are unique to each tire, and communicate with a
receiver mounted on the body near that tire, which then talks to the TPMS
computer. Other types communicate directly with the TPMS computer, meaning
the computer doesn't know which tire is low, and you need to check all
four.

Typically you can also get temperature information from the sensors.
However some (most) vehicles do not present the information to the
driver. e.g. while the sensors are reasonably accurate my old company
car (GM) would only display pressure information and my current BMW
dumbs it down even more and just displays a green/yellow/red indication
on a graphic.


The "unique sensor" type seems to be found mostly on vehicles marketed as
higher-end.

They're not really unique, but when buying replacements there are
different models that communicate at different frequencies.

nate


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On 10/24/2013 08:11 AM, Frank wrote:
On 10/23/2013 7:48 PM, Metspitzer wrote:
Anyone think those are a money saving devices? I just learned that
the sensors in tires should be replaced every time you buy tires and
they are over 40 bucks per tire.

The cost would seem to outweigh any savings from preventing any
improper tire wear.


Don't believe so but one went bad in wife's Subaru and it cost $200 to
have replaced.

How did we survive all these years without these?
Thank the *******s, you know where.

That right there is probably why some people recommend sensor
replacement with tires, because labor is expensive. If you're paying to
have the tire mounted and balanced anyway, $200 for four sensors is
"insurance" because you'd lose if even one of the sensors went bad
before you had to replace tires again.

I have to admit to having gambled and lost; I had the wheels refinished
on my car last winter (I have a set of winter wheels and tires; powerful
RWD cars, summer-only tires, and snow don't mix) and at the time the car
was four years old (was a very early 2009 model year build.) The guy
doing the wheels said my valve stems were unsalvageable, could I please
find him new ones. I asked if I should get new sensors at the same
time; he said "probably not."

I had a TPMS fault when I mounted the wheels in the spring Even more
irritating, I couldn't fix it myself because my car doesn't display the
measured pressure in each wheel or even tell me which sensor isn't
communicating; I would have needed either a OBD2 scanner or the tool
that the local tire shop uses that basically is a receiver for the
signals that the TPMS sensors send out. And yes, I paid more than it
would have cost to order the sensors from Tire Rack to get one from the
dealership and have the tire shop install it. You live and learn.

nate

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On Thursday, October 24, 2013 8:40:23 AM UTC-4, Tegger wrote:
wrote in :







This isn't all SUVs, it was certain Ford Explorers with a SUV body on

a passenger car suspension and the wrong tires spec'ed because Ford

was in bed with Firestone.







Not quite.



Ford was seeking a softer ride for the Explorer, so they specified a lower

pressure than Firestone spec'ed for that tire. The problem was that by

spec'ing such a low pressure they removed the safety factor, meaning that

only a little pressure could be lost before the tire was in danger of

overheating. Then one day an Explorer in Texas during a heat wave had a

low-pressure situation, a tire blew, the vehicle rolled and somebody died..

I can't quite remember now, but I believe the deceased was beltless.



Ford tried to blame Firestone, which did their own investigation,

discovered the non-authorized pressure setting, and disclaimed

responsibility. Then the lawyers and activists got involved and we now have

mandated TPMS. Never mind that Texas-type incidents are vanishingly rare

("if it saves just one life!"; "it's for the Children!").











They are hitting a fly with a huge government sledge hammer.







An expensive and troublesome government sledgehammer. I've noticed a

surprising number of people just ignoring the light. They check the

pressures and they're all apparently fine, so they give up.





--

Tegger

I had a Volvo in which one of the sensors went bad. I'd get the warning on very hot days, temps over 90 F. The first time it went on, I pulled over and checked the tires; all were OK. After a few times, I just started ignoring it. I routinely check the tire pressure on both cars and the truck every month.

Paul

"Frank" wrote in message
...
On 10/23/2013 7:48 PM, Metspitzer wrote:
Anyone think those are a money saving devices? I just learned that
the sensors in tires should be replaced every time you buy tires and
they are over 40 bucks per tire.

The cost would seem to outweigh any savings from preventing any
improper tire wear.


Don't believe so but one went bad in wife's Subaru and it cost $200 to
have replaced.

How did we survive all these years without these?
Thank the *******s, you know where.

I have a bad one on my Toyota truck. The tire place where I bought some
tires wanted about $ 60 or $ 70 to replace one. Did not check with Toyota
dealer. The truck will pass the state inspection (NC) without it, so I just
ride around with the warning light on now. Before I got it in 2007, I did
not have an air sensor and got along just fine checking the tires every
month or so.

On 10/23/13 11:44 PM, Bill wrote:
Tegger wrote:
Metspitzer wrote in
:

Anyone think those are a money saving devices?


They're not meant to be money saving.

They're meant to satisfy an NHTSA safety regulation that all tires have
their pressures monitored by an on-board computer.

The idea is that you'll thus be less likely to have a blowout that
might
cause the vehicle to crash and kill you. Not that that's particularly
likely anyway, but once activists and bureaucrats get a bee in their
bonnets, there's no stopping them.


I just learned that
the sensors in tires should be replaced every time you buy tires

Who told you that? It's wrong. The TMPS sensor should unscrew from the
valve stem, allowing it to be transferred to the new valve stem that
will
come with the new tire.



I was under the impression the sensor was viewing a profile of the
tire. I could be wrong, but I don't think there is anything attached
to the valve stem!


Take a look at the pictures at

http://www.tirerack.com/tires/tirete...jsp?techid=152

Nate Nagel wrote in
:

On 10/24/2013 08:22 AM, Tegger wrote:


The "unique sensor" type seems to be found mostly on vehicles
marketed as higher-end.

They're not really unique, but when buying replacements there are
different models that communicate at different frequencies.



What I meant was that each sensor on such a vehicle is unique to
each /wheel/; IOW, you can't swap them around without doing a relearn.

--
Tegger

"Ralph Mowery" wrote in
m:

so I just ride around with the warning light on now.


You and uncountable thousands.


Before I got it in 2007, I did not have an air sensor and got along
just fine checking the tires every month or so.



These days all it takes is a few incidents (or just one) to cause major
changes in policy covering millions of actions. Completely unrealistic, but
that's government by activism.


--
Tegger

"Metspitzer" wrote in message
...
Anyone think those are a money saving devices? I just learned that
the sensors in tires should be replaced every time you buy tires and
they are over 40 bucks per tire.

The cost would seem to outweigh any savings from preventing any
improper tire wear.

Costco doesn't replace with new----they use a kit and rebuild (replace
seals etc.) for about $8.00 ea (at least that's the amount I seem to
recall--could be different but it wasn't expensive)
MLD

On 10/24/2013 8:56 AM, dpb wrote:
On 10/23/2013 9:38 PM, Ron wrote:
On 10/23/2013 8:50 PM, dpb wrote:
On 10/23/2013 6:48 PM, Metspitzer wrote:
Anyone think those are a money saving devices? I just learned that
the sensors in tires should be replaced every time you buy tires and
they are over 40 bucks per tire.

The cost would seem to outweigh any savings from preventing any
improper tire wear.

"Money saving?" for a passenger vehicle? No, not really unless one paid
no attention otherwise it's possible. They are a safety feature that is
worthwhile imo; again if paid attention to when indicate low pressure.

So just ignore over inflated?

Well, DOH!, no, but it's far less of an occurrence other than perhaps
after a flat repair or the like.

snip

The only warnings I have ever received were while on a road trip and
they were "tire pressure too high".

On 10/24/2013 12:21 PM, Tegger wrote:
Nate Nagel wrote in
:

On 10/24/2013 08:22 AM, Tegger wrote:


The "unique sensor" type seems to be found mostly on vehicles
marketed as higher-end.

They're not really unique, but when buying replacements there are
different models that communicate at different frequencies.



What I meant was that each sensor on such a vehicle is unique to
each /wheel/; IOW, you can't swap them around without doing a relearn.


True - I didn't consider that as it's cake easy on my car. Takes about
2 minutes whenever I swap wheels. Some other vehicles require a
procedure with deflating and reinflating tires in sequence which is a
pain unless you have a compressor.

nate

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On 10/24/2013 12:26 PM, MLD wrote:

"Metspitzer" wrote in message
...
Anyone think those are a money saving devices? I just learned that
the sensors in tires should be replaced every time you buy tires and
they are over 40 bucks per tire.

The cost would seem to outweigh any savings from preventing any
improper tire wear.

Costco doesn't replace with new----they use a kit and rebuild (replace
seals etc.) for about $8.00 ea (at least that's the amount I seem to
recall--could be different but it wasn't expensive)
MLD

That doesn't replace the sensor only the seals around the valve stem.
The sensors do have a finite life as they have an internal cell that
provides power which tends to last about 5 years or so.

Given my own experiences, if I had to have a tire dismounted and knew
that my sensors were 4+ years old I would go ahead and replace the
sensor at that time. However if you only get 2-3 years out of a set of
tires, I'd schedule new sensors every other tire change.

nate

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