More TPMS (tire pressure monitor sensors) info

JExpedition07 · Feb 24, 2020

Holy cow, if you don’t like TPMS go ahead and get rid of it and don’t make a scene about it. Many of us love it. I have first hand experience with TPMS and it has come in handy several times. When one of the batteries died in my 2007 I bought all 4 oem sensors from the OE supplier (Airtex) for about $20 per sensor and my local mechanic did a great job and only charged me $75 to install and balance wheels. Cost me under $200 to repair the system that lasted 12 years from Ford. You can’t beat that imo. Wouldn’t trade it or cheat it.

LokiWolf · Feb 24, 2020

762mm said:
Law enforcement? That makes two of us, then. So in your career as a patrol officer, you never drove a police pack without TPMS? No Crown Vic, Caprice or Taurus, ever? If so, how did you ever manage to survive a pursuit without it? Could it be that you can actually feel a low tire on a car or truck by the way it drives?

I've had nails, bolts and other stuff in the tires on more than one occasion, on and off the job. Some were accidental, some were due to a bunch of dipsh*ts leaving nails under tires in our parking lot on purpose. As soon as the car takes off, you can hear it right away. If it's already in motion when you hit the nail, you will hear it too as you slow down. It's akin to having a piece of gravel stuck in the thread of the tire. Ever driven on a gravel road and then back onto asphalt? Yeah, just like that.

As for being "condescending", he better back off calling me a liar. I drove my old truck with a rock-solid PSI for YEARS, without ever adding any air. According to our friend here, I should've been driving on 4 flats after 6 to 8 months.

Sorry bud, but I've spent he last 20 years dealing with people who attempt to feed me bullsh*t on a daily basis. If not entertaining their b.s. and calling them out on it is considered "condescending" in your book, so be it. I'm no politician and I don't pretend to be.

For what it's worth, you and me have no problem.

You failed to mention you were changing your sets of tires for different seasons. You finally mentioned that in a different post.

No heat cycles and less pressure. The loss will not be as high as it is in the average vehicle that runs the same tires year around. The average loss is 1PSI a month.

That being said...I am pretty sure anybody on here will agree that even switching tires that losing only 1 PSI in 6-8 years is downright close to a miracle.

Even a race tire in one test session, qualifying, or short race will lose some air when it cools back down to the starting cool temp. Assuming it is filled with air and not something like Nitrogen.

Sorry, science and experience tells me that tires lose air under regular use. I have 28 years of personal experience to go off of. Sorry, just doesn’t make sense.

This whole, I will hear a nail or a screw or anything else under all conditions is also BS. Diesel pulling a 2 axle multicar race trailer. I didn’t hear the screw, but the TPMS prevented a dangerous situation, WAY before the pressure change in anyway affected handling. Screw wasn’t even touching the pavement. Was probably on the gravel road leaving the track. It was stuck inside a groove in the corner of a lug. Nothing to hear.

Obviously I carry a repair kit. Removed screw, repaired tire, put lost air back in the tire, and monitored TPMS to make sure the repair held. Win/Win.

Respect for the Blue...but man your default is to start throwing insults...just because somebody didn’t believe you.

I am hoping that the rest of us eventually find and are able to purchase these miracle tires, that defy the laws of nature and physics.

Hope all of you that serve and protect stay safe out there!

Sent from my iPad using Tapatalk Pro

07navi · Feb 24, 2020

LokiWolf said:
You failed to mention you were changing your sets of tires for different seasons. You finally mentioned that in a different post.

No heat cycles and less pressure. The loss will not be as high as it is in the average vehicle that runs the same tires year around. The average loss is 1PSI a month.

That being said...I am pretty sure anybody on here will agree that even switching tires that losing only 1 PSI in 6-8 years is downright close to a miracle.

Even a race tire in one test session, qualifying, or short race will lose some air when it cools back down to the starting cool temp. Assuming it is filled with air and not something like Nitrogen.

Sorry, science and experience tells me that tires lose air under regular use. I have 28 years of personal experience to go off of. Sorry, just doesn’t make sense.

This whole, I will hear a nail or a screw or anything else under all conditions is also BS. Diesel pulling a 2 axle multicar race trailer. I didn’t hear the screw, but the TPMS prevented a dangerous situation, WAY before the pressure change in anyway affected handling. Screw wasn’t even touching the pavement. Was probably on the gravel road leaving the track. It was stuck inside a groove in the corner of a lug. Nothing to hear.

Obviously I carry a repair kit. Removed screw, repaired tire, put lost air back in the tire, and monitored TPMS to make sure the repair held. Win/Win.

Respect for the Blue...but man your default is to start throwing insults...just because somebody didn’t believe you.

I am hoping that the rest of us eventually find and are able to purchase these miracle tires, that defy the laws of nature and physics.

Hope all of you that serve and protect stay safe out there!

Sent from my iPad using Tapatalk Pro

So 672's tires lost zero, 1, 2 ,3 PSI who cares, the point is they lost very little. When I get my winter tires out of storage most have lost no pressure sitting there all summer . You can like TPMS but everyone has done fine without it since 1900 and that incident with your leak sounds like you would have been doomed without the warning you got, I'm not buying that. Also you instigated the insults by calling someone a liar. I carry a repair kit too but that has nothing to do with TPMS.

JExpedition07 · Feb 24, 2020

Everyone did fine on their horses and buggies in the 1900s too. Cars are for sissies with too many problems, walk or get a horse. Who needs a check engine light or brake warning light either? Not needed and extra junk when you can just hop on your horse and go. Have at it.

Shantheman73 · Feb 24, 2020

762mm said:
Law enforcement? That makes two of us, then. So in your career as a patrol officer, you never drove a police pack without TPMS? No Crown Vic, Caprice or Taurus, ever? If so, how did you ever manage to survive a pursuit without it? Could it be that you can actually feel a low tire on a car or truck by the way it drives?

I've had nails, bolts and other stuff in the tires on more than one occasion, on and off the job. Some were accidental, some were due to a bunch of dipsh*ts leaving nails under tires in our parking lot on purpose. As soon as the car takes off, you can hear it right away. If it's already in motion when you hit the nail, you will hear it too as you slow down. It's akin to having a piece of gravel stuck in the thread of the tire. Ever driven on a gravel road and then back onto asphalt? Yeah, just like that.

As for being "condescending", he better back off calling me a liar. I drove my old truck with a rock-solid PSI for YEARS, without ever adding any air. According to our friend here, I should've been driving on 4 flats after 6 to 8 months.

Sorry bud, but I've spent he last 20 years dealing with people who attempt to feed me bullsh*t on a daily basis. If not entertaining their b.s. and calling them out on it is considered "condescending" in your book, so be it. I'm no politician and I don't pretend to be.

For what it's worth, you and me have no problem.

I'm not going to pick on a brother in blue. We're cool.

FYI...I wasn't speaking to your beef with another member. I was speaking to your blanket statements about those who like their TPMS as being incompetent at starting their own lawnmower (amongst other things). I get your disdain for TPMS, but I'm not ok with the disdain for those who like it.

I never drove a squad with TPMS and I've had plenty of flats. I know the difference with how it 'feels'. However, I still appreciate my TPMS on my Expy since it's an informational tool...esp. for those who aren't as experienced as people like us. If it saves one life, it's more than worth it.

07navi · Feb 24, 2020

JExpedition07 said:
Everyone did fine on their horses and buggies in the 1900s too. Cars are for sissies with too many problems, walk or get a horse. Who needs a check engine light or brake warning light either? Not needed and extra junk when you can just hop on your horse and go. Have at it.

TPMS is OK for a little extra info but it just bothers me that we are forced to put up with the maintenance part of it. What about the poor people that suddenly get that annoying orange tire light and constant text hogging the info box? They might have to sell their car but it won't pass inspection, or they can't sell it because no potential buyer wants the problem, or they have to spend rent money to fix it, or they are just forced to stare at the annoying garbage on the cluster forever. I did without it though 50+ cars and trucks with no problems whatsoever.

Shantheman73 · Feb 24, 2020

07navi said:
TPMS is OK for a little extra info but it just bothers me that we are forced to put up with the maintenance part of it. What about the poor people that suddenly get that annoying orange tire light and constant text hogging the info box? They might have to sell their car but it won't pass inspection, or they can't sell it because no potential buyer wants the problem, or they have to spend rent money to fix it, or they are just forced to stare at the annoying garbage on the cluster forever. I did without it though 50+ cars and trucks with no problems whatsoever.

I hear you. However, technology has given us incredibly reliable vehicles that do not require tuneups every 20,000 miles, new spark plugs every 25,000 miles, distributor caps, points, and all of the other fun stuff we had to constantly maintain. I think the trade-off is fairly reasonable for what technology has enabled us to NOT have to maintain.
That’s just my two cents.

2007 Ford Expedition Limited
Sent from my iPhone using Tapatalk

07navi · Feb 24, 2020

JExpedition07 said:
Everyone did fine on their horses and buggies in the 1900s too. Cars are for sissies with too many problems, walk or get a horse. Who needs a check engine light or brake warning light either? Not needed and extra junk when you can just hop on your horse and go. Have at it.

TPMS is OK for a little extra info but it just bothers me that we are forced to put up with the maintenance part of it. What about the poor people that suddenly get that annoying orange tire light and constant text hogging the info box? They might have to sell their car but it won't pass inspection, or they can't sell it because no potential buyer wants the problem, or they have to spend rent money to fix it, or they are just forced to stare at the annoying garbage on the cluster forever. I did without it though 50+ cars and trucks with no problems whatsoever.

Shantheman73 said:
I hear you. However, technology has given us incredibly reliable vehicles that do not require tuneups every 20,000 miles, new spark plugs every 25,000 miles, distributor caps, points, and all of the other fun stuff we had to constantly maintain. I think the trade-off is fairly reasonable for what technology has enabled us to NOT have to maintain.
That’s just my two cents.

2007 Ford Expedition Limited
Sent from my iPhone using Tapatalk

Just sayin' they could have done without the tpms but I guess it is for the oblivious people that can run half flat and not ever be aware of it.

LokiWolf · Feb 25, 2020

07navi said:
that incident with your leak sounds like you would have been doomed without the warning you got, I'm not buying that.

Nope...would not have been doomed. Just knew about the issue WAY sooner, so I had more time to make a decision. The way it went down, one of the fronts lost 1 PSI, then another...when the other tires were gaining PSI as they heated up under load. I would have been able to feel it, but we are talking a difference of 3 PSI below the starting PSI, and about 7/8 below where the other tires were at as they heated up. Still above where a TPMS warning would have engaged, and before you would feel the difference while driving straight down a highway with a load. Remember, we are talking around 60 PSI. Nobody is going to feel a difference between 63/64 and 57 in static driving on that type of vehicle. The sensors allowed me to see this Data.

Yes if it was the racecar, I can tell handling wise between 1 PSI almost immediately. Heck, depending on track temp, and age of the tires, starting pressure is adjusted and can make the difference in seconds on the track.

762mm · Feb 25, 2020

Ok, I admit there is some inherent benefits to technology like ODBII and such, as it pinpoints problems in systems that would be way too complex to diagnose otherwise. It is actually a large reason why cars are not routinely junked right after the warranty runs out and an oxygen sensor or throttle body decides to quit, yet no one can find out what's wrong... so I concede that.

However, there is a line to be drawn between necessary maintenance items such as OBDII and a tire pressure sensor. The pressure sensor should be switchable to the off position without an annoying dash light. My Expedition literally flashes that garbage in my face every time I start the truck... it's annoying as hell. The truck is only 5 years old, as it was bought end of 2014 by the previous owner (police dept up North). So, the whole story about how these sensors are "supposed" to last 8-10 years (as per Ford) is a bunch of b.s.... these were the original Ford ones and crapped out pretty damn fast!

More TPMS (tire pressure monitor sensors) info

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