Chevrolet Cobalt Service & Repair Manual: Component Replacement

Tire Pressure Indicator Sensor

Each tire pressure sensor has an internal power supply that has a service life of 10 years.

Removal

1. Loosen lug nuts.
2. Raise and support vehicle with jack stands, then remove wheel and tire assembly.
3. Prior to dismounting tire from wheel, note following precautions:
  a. Position bead breaking fixture 90°, 180° and 270° from valve stem when separating tire bead from wheel.
  b. Position wheel and tire so valve stem is situated at 7 o'clock position relative to head. Tire iron or pry bar can be inserted when prying outer tire bead up and over mounting and dismounting head.
  c. Position wheel and tire so valve stem is situated again at 7 o'clock position relative to head. Tire iron or pry bar can be inserted when prying inner tire bead up and over mounting and dismounting head.
4. Deflate tire completely.
5. Connect a suitable tire changer to remove tire from wheel. A rim clamp European type tire changer is recommended.
6. Remove any rubber or corrosion from wheel bead seat with a suitable wire brush or heavy steel wool. Also, remove all residual liquid tire sealant from inside of tire and wheel surfaces.
7. Remove tire pressure sensor hex screw, then pull sensor straight through wheel, Fig. 1.
8. Remove tire pressure sensor valve stem.

Installation

1. Clean any dirt or debris from grommet sealing area of wheel.
2. Position tire pressure sensor to valve stem and install new hex head screw. Torque hex head screw to 12 inch lbs.
3. Apply tire soap to rubber portion of valve stem. Using a valve stem installation tool, install valve stem through wheel hole. New TPMS sensors are still shipped in Off mode. Sensor will exit its Off mode when tire is inflated.
4. Prior to mounting tire, use only an approved tire mounting lubricant. Do not use silicon or corrosive base compounds to lubricate tire bead and wheel rim.
5. Position wheel so valve stem is at 7 o'clock position relative to head. This will protect sensor when bottom bead seats.
6. Connect a suitable tire changer, rotate tire and wheel assembly clockwise when transferring tire bead to inside of wheel rim.
7. After bottom bead is on wheel, reposition wheel and tire so that valve stem is at 7 o'clock position relative to head. This will protect sensor while mounting tire bead to outside of wheel.
8. Connect tire changer to install tire to wheel.
9. Ensure that valve core is not installed, then inflate tire to seat tire beads. Do not stand over tire while inflating. When inflating tire, do not exceed 40 psi if beads are seated. If 40 psi will not seat bead, deflate tire, lubricate beads and inflate.
10. Inflate tire to proper pressure.
11. Install valve core to stem.
12. Ensure locating rings are visible on both sides of tire to verify that tire bead is fully seated on wheel.
13. Install wheel and tire assembly on vehicle, then lower vehicle and torque lug nuts to 100 ft. lbs.
14. Perform TPMS "Relearn Procedures."

Fig. 1 Tire pressure monitor sensor location. Snap in style

    Technical Service Bulletins
    ...

    Description
    The TPMS (Tire Pressure Monitor System) warns the driver when a significant loss or gain of tire pressure occurs in any of the four tires, and allows the driver to display the individua ...

    See also:

    Chevrolet Cobalt Service & Repair Manual. Blower Motor, Replace
    1. Disconnect blower motor electrical connector. 2. Remove lower blower motor cover heat stakes, Fig. 1, using small suitable chisel. 3. Remove lower blower motor cover. 4. ...

    Chevrolet Cobalt Owners Manual

    Chevrolet Cobalt Service Manual


    Copyright © 2020 www.cheviguide.com - Chevrolet Auto Manuals - 0.0083