tire pressure sensor issue?

[ryangt]

Ok guys, ive read a bunch of threads and even tried the air up/air down "tpms learn trick", so heres what happened.

I just had new tires put on my truck this afternoon. The low pressure warning is now on ( all tires are at 40psi)

I tried the tpms "learn" method and all tires got the horn to honk with the exception of the drivers side rear tire.....

now the dash says i need to service my tire pressure sensor......

did the shop mess up my sensor or what? Ive never had an issue like this before. Can someone please give me a hand?

Thank you in advance

 

[black on black 07 yukon]

They could have messed up the sensor. I always go to the dealer to get tires put on, even if I didnt buy the tires from them, because of the tire sensors. Just in case one got messed up during removing or installing. If you go to dealer dont tell them you got new tires, they could replace them under warranty, only if you still have the factory warranty. Under a different situation I've seen it done. They replaced all four of mine, in a set of used factory rims I brought from someone. Good Luck

 

[ryangt]

They could have messed up the sensor. I always go to the dealer to get tires put on, even if I didnt buy the tires from them, because of the tire sensors. Just in case one got messed up during removing or installing. If you go to dealer dont tell them you got new tires, they could replace them under warranty, only if you still have the factory warranty. Under a different situation I've seen it done. They replaced all four of mine, in a set of used factory rims I brought from someone. Good Luck

hahah there isnt a GM dealership within 10000 miles of me man. I gotta deal with the yahoos in this town. I assume the shop messed it up, i dont know how that is even possible since you dont even need to touch them to replace the valve. Im wondering if they got it dirty or something. Im going back to the shop tommorow afternoon to ask them to take off that wheel, clean the sensor and re-install and that if that doesnt work that i feel they should replace the sensor.

 

[str8wkd]

what year is your truck GM claims about 7 years on the batt in the sensor and they say the batt cant be replaced but they can and it is just time consuming there is a right up on how to do on the Vette forum

 

[ryangt]

what year is your truck GM claims about 7 years on the batt in the sensor and they say the batt cant be replaced but they can and it is just time consuming there is a right up on how to do on the Vette forum

mines an 04. THe thing worked just fine ever since owning it , mysteriously now its not working after the shop changed the tires. Im going to go have a talk with them.

 

[BlackDenali]

I was having the same B.S. issue with mine and after 3 attempts and a dented rim from being dropped by someone at the shop I said F*** it and pulled the tps and the bulb in the gauge cluster. Now I just clear the tire warning at start up and I'm good to go. Best solution

 

[firehill]

One of my boating friends was having the same issue with his tow vehicle, and it ended up being his spare tire that was low.

 

[jdpromo33]

Ok guys, ive read a bunch of threads and even tried the air up/air down "tpms learn trick", so heres what happened.

I just had new tires put on my truck this afternoon. The low pressure warning is now on ( all tires are at 40psi)

I tried the tpms "learn" method and all tires got the horn to honk with the exception of the drivers side rear tire.....

now the dash says i need to service my tire pressure sensor......

did the shop mess up my sensor or what? Ive never had an issue like this before. Can someone please give me a hand?

Thank you in advance

Yes, what I think they did is replace the valves when they installed the new tires and in doing so elliminated your TPS (tire pressure sensors).

The original valves contain the sensors which send a radio signal to the main relay/computer thingy!. If they no longer are there you will get the "Service Tire Pressure Sensor" message on your dash

If they are now gone you may have to go to a dealer and have new ones installed and programmed to your vehicle. Bear in mind that the dealer is gonna hit you for new ones and to install them for you

JD

 

[badtothe bone]

Sorry guys - bur removing the valve stems is impossible.

You can remove the cores with no problems as long as you put the same cores back into the stems. There is a short valve core and a long valve core. The two do not interchange.

The process for working on a car with wheel sensors is to use a nut style bleeder that screws directly on top of the sensor and lets the air out through the nut. At the same time, the top of the nut is marked to keep the wheels seperate.

A good tire shop will have a tool which will reprogram the sensors and you will not have to go through the relearn process.

One tip that I have found that works for me is to over inflate the tires until the pressure on the wheel sensor comes up to something above 22 PSI.

The Chevrolet IMAPAL is the vehcle I have the most problems with. We have 2, a 2007 and a 2008 and although one has steel wheels and the other has aluminum wheels, they both had wheel sensor issues. The 2008 only has 10,000 miles on it and still has the origional tires on it.

The trick is to get the computer to recognize the wheel sensor location.
Once the relearn trick is over, you turn on the ignition key and you watch the air tire pressure on the information center until it goes up to 40 psi for each wheel and then you release the pressure until it reads the actual 32 - 35 psi. The actual tire pressure might get as high as 70 PSI before the sensor actually picks up the pressure and adjusts the internal pressure to the actual pressure in the tire. You might not even get it right the first time you do it.

Because I have a race car - I have a tire gauge that is a real pressure gauge and not something that is electronic or something that just moves when it see's pressure. You can adjust the pressure down to the 1/2 inch if you are really careful with it. That is the gauge you should be using on that type of system and not a cheap air tire pressure gauge or pencil gauge.

http://www.saferacer.com/longacre-tire-pressure-gauge-deluxe-0-60-psi.html?productid=648

 

[Eagle]

Thank you Ford for using cheap defective tires and knee-jerk Congressmen for saddling everyone else with this crap in response.