Other members have mentioned replacing the rubber grommets on their tire pressure sensors when the sensors were moved from one set of wheels to another set. Sounds like a reasonable idea, though not mandatory.

My parts guys says the grommets are not shown as a separate item for my 2009 sensors, he says we should keep the original grommets for the life of the sensors.

Is he correct?
Are there aftermarket grommets available? Recommended?

Thanks!

 

AFAIK the general recommendation is to replace the grommets any time the sensors are removed. I do know BEZ06 always mentions it in his posts. Discount Tire sells a rebuild kit which includes a new grommet and nut for about $7 - $9 each sensor when they do any work on the sensors. And I think Tire Rack also recommends the same kit.

 

Thanks; that's what I remember, too.

But the Chevy parts guy says the grommets are not available separately; you'd think GM would sell them if there was a need.
Or is he simply incorrect?

I wonder who makes the aftermarket grommets, and how the quality compares to OE.

 

I ran across this maybe a year ago and saved it in my bookmarks. I do not know if these will work with only their TPMS units or are universal (they seem to imply universal) but here's the info anyway. Do with it what you will. $2 per wheel for the kit is a price I can live with

http://www.alltiresupply.com/p-SB-20004.html

Z//

 

That's a really useful find.
Thank you.

 

This is better taken care of with a tire place than a Chevy dealer.

 

Unfortunately, my experience has been the opposite.

My dealer does pretty good work.
They know their limitations and don't try to actually work on runflats.

Discount Tires and local Goodyear shop are complete morons.

 

Neither of the 2 Chebie dealers in my area is worth a squat when dealing with anything but NEW tires!!

If you're buying NEW tires and NEW sensors they can mount them up for you.

If you're trying to get a puncture repaired, all they want to do is sell you a new tire.

Same with the local Goodyear place.

My local Discount Tire is great!!!!!

I've had 2 punctures repaired for free over the last month. They always take great care not to put the slightest scratch on my wheels.

They also mounted up my new tires on a new set of wheels I got. I had purchased a used set of sensors from eBay - they had been removed from wheels somebody took off a brand new car, and I inspected the grommets and they were like new so I just reused them.

When you remove your sensors you can inspect the grommets. You really need to take the grommets off to inspect them. Make sure they're not distorted and out of shape from being overtorqued. One thing that you might not be able to see without taking them off the valves stem is a cut in the grommet like in the picture below - you might not even see that the grommet is cut/damaged unless you remove it:




Here's a picture of some sensors that definitely need new grommets before installing them in wheels!!! You can see that the shoulders are kind of rounded off and squished down, and if you could feel them they are starting to get hard:




All tire shops should have the "rebuild kits" that have new grommets, valve stem cores, and retaining nut. I'd recommend that any time sensors have been in a set of wheels for a few thousand miles and they're removed/replaced, it's a good idea to just pay for the rebuild kit to make sure you don't have problems.

Remember, the retaining nut is only torqued to a real low spec - 62 INCH-lbs (only about 5 foot-lbs).

Bob

 

Thanks for the info and pics.

As mentioned above, the Goodyear and Discount Tire shops in my area are complete morons. Michelin store does nice work but doesn't have a Hunter road force machine. I'll probably buy my new summer tires from Discount next year, but I'll also watch them like a hawk while they're working on the car.

Our 2009 was made in Fall 2008, and the summer wheels/tires have about 17k miles. I'll transfer the sensors to my split-spokes next Spring, would prefere to simply hand the guy a new set of GM grommets.

 

GM doesn't make grommets or sensors. The sensors are made by Schrader or another tire sensor company and the grommets are made by a rubber company, so don't get too hung up on having "GM" grommets.

 

GM P/N...

:: 25758220 C6 sensor
:: 15234846 C6 nut; require a very low torque spec. of 62 inch-lbs (that's only about 5 ft-lbs).
:: 25754190 C6 grommet; MSRP: $3.42 your price: $2.61 (approx.)

 

Who is selling them?

Second dealer in our area also says the grommets are not available separately from GM.
Are they a simple O-ring, or is there a contour to them?

 

Thanks for the info guys

vetfever

 

I guess you couldn't tell from the other pictures I posted up.

Does this one show the grommets better?

Bob

 

Fascinating thread. Thanks to all, esp. for pics, Bob!

 

BTW, just to throw out some more info for anyone reading the thread that isn't aware of it:

The GRAY sensors in the pictures in previous posts are for a 2005-2009 C6. They are GM Part# 25758220.

Check out the picture below:




The GREEN sensor in the picture above is used in a 2010 or newer C6. It's GM Part# 15268606, and you might be able to see that number molded into the case of the sensor in the picture.

You must use the proper sensor for your model year or it just won't work - you can't program the sensor into your TPMS unless it's the correct model for your C6.

The TPMS computer in the car can hold 4 sensor ID#s, so if you put new sensors in your wheels, or have a couple sets of wheels/tires/sensors such as for the track, you must program the 4 sensors that are currently on the car into the TPMS or they won't be recognized by the TPMS computer.

If you use your current sensors, as is being discussed in this thread, just make sure the tire shop puts them back on the same corner of the car they came off from and nothing at all will need to be done - they're already programmed in.

If the shop mixes them up and they go on different locations than they were programmed for initially, they'll still work - but the DIC display of pressures will be messed up, i.e. if it says "Left Rear 24 psi" it might be talking about the tire on a different corner of the car. In that case they'll just need to do a "relearn procedure" to program the sensors to their correct location, and it's only about a one minute or so procedure.

Bob

 

I wish I could read what is in Bob's new avatar picture......

 

Try the following…

Forum vendors: RichieRichZ06; Kevin/PartsTaxi.com; Gene/GMPartsHouse.com

Area dealers: Hoskins Chevrolet (Elk Grove); Bill Kay Chevrolet (Lisle); Stasek Chevrolet (Wheeling).

Other online vendors: GMPartsDirect.com

 

Kinda looks like: Caution (across the top)
Children at Play

 

Hi Chris

Yeah, the avatar is just too small of a picture to be able to read the sign. I need to go out and take another one with mostly sign and just a little bit of car to see if it will be readable in the avatar.

Anyway, it's a sign right after you enter our housing development. It's sorta true - but there are actually more adults at play than kids!!!

Bob
.