Hey Gang,

So, my '01 sensors and reciever finally arrived and now I'm wondering if I actually need more hardware to install them. Is there some kind of washer that goes on the outside of the rim underneath the nut? I've looked at pics from the catalogues and it's not particularly clear as they only show the earlier style.

If yes, can I use a regular flat washer or do I need to buy something from GM?

This is what I have:

 

Any thoughts?

 

There's a nut on the outside of your existing sensor. That's it. The rubber seal that you see there is for the pressure seal on the inside. Nothing else is needed.

 

That's the thing - I don't have "existing sensors." Not the new style, anyway. The old ones are on the old rims, which are mounted still. I'm upgrading to the 01-04 system with a new reciever/sensors on new wheels.

So, there is nothing other than the two items in my photo in the first post?

 

K, then a quick stop at the dealer and you should be able to pick up the special nuts you'll need.

 

That is 100% correct.. What you see is all you need!

OLD SENSOR and NUT!



NEW SENSOR and NUT:





Torque the nut to 62 "INCH" pounds

Heres the procedure:

Tire Pressure Sensor Replacement
Removal Procedure
Raise the vehicle on a suitable support. Refer to Lifting and Jacking the Vehicle in General Information.
Remove the tire/wheel assembly from the vehicle. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.

Important
Before the tire is removed from the wheel note the following items to avoid tire pressure sensor damage upon tire dismounting.

Place the cap and the valve on a dry clean surface after removal, the cap is aluminum and the valve is nickel plated to prevent corrosion and are not to be substituted with a cap or valve made of any other material.
When using the tire machine to separate the tire bead from the wheel, position the bead breaking fixture 90 degrees from the valve stem.
When removing the tire from the wheel, ensure a tolerance is maintained between the tire machine fixture, or irons, tire bead, and the sensor.

Remove the tire from the wheel. Refer to Tire Mounting and Dismounting in Tires and Wheels.




Important
If any tire sealant is noted upon tire dismounting, remove all residual liquid sealant from the inside of the tire and wheel surfaces.


Remove the tire pressure sensor nut.
Remove the tire pressure sensor.
Installation Procedure
Clean any dirt or debris from the sensor's grommet sealing area of the wheel.



Insert the sensor in the valve stem hole with the air passage facing away from the wheel.

Notice
Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.


Install the sensor nut and position the sensor body parallel to the inside wheel surface while torquing. Tighten
Tighten the nut to 7 N·m (62 lb in).


Important
To avoid tire pressure sensor damage when mounting the tire back on the wheel, ensure a tolerance is maintained between the tire machine, or irons, tire bead, and the sensor.


Install the tire on the wheel. Refer to Tire Mounting and Dismounting in Tires and Wheels.
Install the tire/wheel assembly on the vehicle. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
Lower the vehicle.
Learn the tire pressure sensors. Refer to Tire Pressure Sensor Learn .

 

Thanks for the clarification and the procedure! I was pretty sure, but I didn't want to peel the tires off for nothing...