Tuesday, October 5, 2010

Long time coming - lets talk a little TPMS

A little info on TPMS Sensors

In 2007, every new vehicle in the US was required to have a tire pressure monitoring system (TPMS). These systems are designed to alert the driver when there is a tire pressure issue/problem.

The sensors are very fragile and sensitive (here's what one looks like TPMS sensor). When getting any tire service, damage can easily be inflicted to a sensor because there are a lot factors and things to look for and know. Unfortunately technology is a little ahead of education and therefore it is common to find damaged sensors from previously completed work.

Here are a few things that are required when handling a sensor:
- A sensor needs to be torqued correctly when fitted to the rim
- The sensor core needs to be torqued correctly when installed in the sensor
- The core needs to be correctly coated for the sensor
- The correct cap needs to be fitted to the sensor

**One of the most common ways to damage a sensor is during the mounting and dismounting of the tire.

When I said technology is a little ahead of education I meant that the transition from the old valve stems to the new sensors was completed without the requirement for tire service centers and even DEALERSHIPS to bring up employee knowledge. When learning about the new sensors we were surprised to find out the amount that get installed incorrectly by dealerships that are supposed to know their own product. Our instructor had a black hefty bag filled with broken sensors from one dealership alone that he collected.


Galvanic Corrosion and TPMS Sensors:

When a tire service technician's tire mounting process is almost complete they have to put in the sensor's core. When working with TPMS sensors the core that gets inserted is different from a traditional rubber valve stem core even though they are very similar in appearance.

We'll go down the beaten path on what happens when this last part of the job is done incorrectly:

1. The incorrect core is used or the correct core is used but is over-torqued.
2. The two metals inside the stem of the sensor in combination with the oxygen inside the tire begin to corrode (galvanic corrosion).
3. The sensor's core loses its strength and usability and "rusts" solid inside the stem.
4. The next time you go to get new tires or a tire service the core cannot be removed and at this point the sensor is beyond repair.
5. You are now forced to get new replacement sensors at the fault of the previous technician.

The main "pain" with this is that no light will come on in your dash to tell you there is a problem because the computer chip which communicates with the car is still in good working order.

If you have any TPMS questions just ask...

...and if you need new tires go to MyTireGuys.com

Monday, January 18, 2010

The First Blog

My name is Jake Cassidy and I am the owner of My Tire Guys, Inc. (MTG), a Massachusetts company started during 2009. What makes this tire company different from many others you will find is that it is a new breed. The concept of this one is to bring the tire shop to you because MTG is a mobile tire shop.
The problem with any auto related service business is that we are shadowed right off the bat as greasy unhelpful people who will try to squeeze as much money out of a customer as we can. This definitely makes my job a little tougher because first impressions have already been made before the customer has ever done business with us. Before starting this business I was aware of this fact and so from day one have strived and made every effort to create the best way to get new tires. And here’s how…
MTG utilizes state of the art equipment, we use tire changers that are the top choice of Ferrari and Lamborghini dealerships and the best laser balancers on the market. I am a TIA (Tire Industry Assoc) Instructor and if another MTG employee comes to change your tires rest assured that they have been trained as a TIA technician ensuring safe practice and hands on knowledge. If you are reading this blog then I hope you have already visited our website where you will find a video on the home page showing you how the service works.
I have started this blog to give advice and helpful information and answer any question you may have. Not only will I tell you how to check your air pressure for example but how it is affected and why it is important. So ask me your questions and tell me your problems and I will be here to help.