"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

You were ripped. OEM replacementas rub ~ $50 all over the internet. Many
tire dealerships will do the replacement for free.