Tire Low Pressure Light
Thread Starter
|
Postmaster
Joined: Mar 2003
Posts: 4,513
Likes: 0
From: La Tech University, La
Tire Low Pressure Light
At what point does it go off?
Mine went off tonight, after about 15 miles on the road, the ambient temp is 60 degrees cooler than when the tires last got air (it was 40 degrees on the drive home)
None of the tires look low. If it had been on at the start, I could understand due to the cooler air, but it was after a few miles and the tires had warmed up some I am sure. (Two miles later when I stopped at my house, the tires felt warm to the touch, at least, noticeably warmer than ambient air.)
Mine went off tonight, after about 15 miles on the road, the ambient temp is 60 degrees cooler than when the tires last got air (it was 40 degrees on the drive home)
None of the tires look low. If it had been on at the start, I could understand due to the cooler air, but it was after a few miles and the tires had warmed up some I am sure. (Two miles later when I stopped at my house, the tires felt warm to the touch, at least, noticeably warmer than ambient air.)
Posting Guru
Joined: Mar 2004
Posts: 1,195
Likes: 0
From: Sunapee NH
I would suggest you check the tire pressures vs seeing if they look low. The system does an excellent job of warning you when you've picked up a nail. We found this on my wife's Explorer and like your truck. The tires looked fine, but one was down 10 pounds with a nail.
The TPMS has 2 different types of indications. Lamp is on constant system is indicating a pressure drop. Lamp flashes for 60 or so seconds then stays on constant, the system is indication a sensor or communication type problem.
Ford F150 Tire Pressure Monitor System
The TPMS has 2 different types of indications. Lamp is on constant system is indicating a pressure drop. Lamp flashes for 60 or so seconds then stays on constant, the system is indication a sensor or communication type problem.
Ford F150 Tire Pressure Monitor System
Posting Guru
Joined: Nov 2009
Posts: 2,016
Likes: 3
From: NC
The sensors go into a sleep mode when the vehicle is at rest to save the sensor batteries. If you have low pressure, it takes several minutes in motion for the system to activate an alarm.
Sounds like your system worked exactly like it should and I'm betting one (or more tires) is low - probably in the 25-29 PSI range.
Sounds like your system worked exactly like it should and I'm betting one (or more tires) is low - probably in the 25-29 PSI range.
Posting Guru
Joined: Jan 2006
Posts: 1,490
Likes: 16
From: Arizona/Texas
During our vacation the TPMS indicated a low tire. I stopped and checked the tires and the right rear was at 29 psi. I added some air and we continued. After about 50 miles, the warning came on again. Again the pressure was at 29 psi, but I could not detect a leak or see anything. After the third time, I looked harder and found the nail and good hear and feel the leak. Stopped in the next town and got it fixed. Great system. Saved me a tire, and possibly worse!
Freshman User
Joined: Jan 2010
Posts: 33
Likes: 0
Same thing happened on my truck a few days ago. The low tire pressure signal went off in the morning commute. I visually checked tires at a gas station. It looked fine so I drove to work and back home. I checked tire pressure at home and it read 34psi on all for tires. I added air until I got 35 psi. Not sure why it made such a big deal with warning light and made me a bit jumpy on the freeway.
New User
Joined: Aug 2009
Posts: 19
Likes: 0
From: Marana,AZ
low tire warning light on
This has happened to me several times and every time I check the pressure to find all tires the same. I've had this to the dealer in Tucson four or five times and again on this coming Monday I hope they find the B/O sender this time. The light has been on for two weeks now. No nails and no low air pressures. Very frustrated with this but like my truck if they would just this one issue.
New User
Joined: Jun 2011
Posts: 14
Likes: 0
Radio frequency devices can cause the TPMS to indicate a fault.
turn off all GPS units hands free devices etc and see if it stops.
i had mine go off last summer on vacation because of the portable DVD player for the kids.
turn off all GPS units hands free devices etc and see if it stops.
i had mine go off last summer on vacation because of the portable DVD player for the kids.
Trending Topics
New User
Joined: Aug 2009
Posts: 19
Likes: 0
From: Marana,AZ
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
Posting Guru
Joined: Feb 2005
Posts: 2,295
Likes: 2
This is my F150. (clicky)
I bet I generate a lot more RF than your kids' DVD player (up to 250W EIRP on multiple frequency ranges), and the only TPMS activations I've experienced where legitimate activations due to low tire pressure.
In short - I don't think a DVD player caused a TPMS activation...
Super Moderator
Joined: Jan 2008
Posts: 40,024
Likes: 1,520
From: Maine, Virginia
I've picked up two nails on my '04 Expy and the TPMS really gave us what I consider to be an advanced warning. Tires plugged and all is good.
However, in the winter months, the TPMS in my Expy is a little fussy and the light tends to flash for a bit whereas in the summer it does not.
However, in the winter months, the TPMS in my Expy is a little fussy and the light tends to flash for a bit whereas in the summer it does not.
Moderator
Joined: Jul 2011
Posts: 6,510
Likes: 663
From: Sioux Falls Area
I'm also wondering which trucks have this system. Do the base models have the same TPMS? or is it just part of the convinence package for the XLT's and up?
My 2010 XL work truck has a low tire indicator, but it acts more like it just reads wheel speedmsensors to check for a low tire, rather than a direct reading from a sensor in the valve stem.
I understand why ford might be sensitive to low tire pressures and warning their customers, but i would actually find it a bit annoying if the pressure in all the tires drops due to temps, to have the warning light come on at 28psi. In the winter i generally run low pressures on purpose to help with traction, running them down to 25 in the winter doesn't bother me a bit. (of course, i air them up a bit if i'm going to haul heavy, but other than that they do grip better with a little less air)
Posting Guru
Joined: Jan 2006
Posts: 1,490
Likes: 16
From: Arizona/Texas
The TMPS is a Federal requirement.
I agree about the pressure. It's the same for running around off road. It would be nice if we were able to adjust the warning pressure minimums. But it's also a good reminder to air up when on pavement for me.
But I really like that system and can speak from experience, I would rather deal with the light on occasion than to completely disable the system.
I agree about the pressure. It's the same for running around off road. It would be nice if we were able to adjust the warning pressure minimums. But it's also a good reminder to air up when on pavement for me.
But I really like that system and can speak from experience, I would rather deal with the light on occasion than to completely disable the system.
New User
Joined: Jun 2011
Posts: 14
Likes: 0
Post hoc ergo propter hoc.
This is my F150. (clicky)
I bet I generate a lot more RF than your kids' DVD player (up to 250W EIRP on multiple frequency ranges), and the only TPMS activations I've experienced where legitimate activations due to low tire pressure.
In short - I don't think a DVD player caused a TPMS activation...
This is my F150. (clicky)
I bet I generate a lot more RF than your kids' DVD player (up to 250W EIRP on multiple frequency ranges), and the only TPMS activations I've experienced where legitimate activations due to low tire pressure.
In short - I don't think a DVD player caused a TPMS activation...
you have professional equipment with proper sheilding and grounding.
the cheap dvd player i have does not have any of that.
i have tested it and it only does it when the dvd player is in the truck.
if you google tpms and rf you will find lots of people with this same problem.