Chevrolet Sonic Repair Manual: Tire and Wheel Balancing (Balancing/Wheel Weights)
- Use 3M wheel weights, refer to Adhesives, Fluids, Lubricants, and Sealers for application.
- Surface of the wheel must be clean and dry.
- All tire and wheel assemblies are to be checked for static tolerance of 2 grams and not more than 20 grams per plane, using cut-to-length weight produced by 3M cutting machine.
- Car - Flanged - inboard & outboard – 71 grams per plane.
- Truck - Flanged - inboard & outboard – 142 grams per plane.
- Car - Flangeless - inboard & outboard – 142 grams per plane.
- Truck - Flangeless - inboard & outboard – 170 grams per plane.
- Deflate the reject tire/wheel assembly and break tire bead seat on wheel.
- Remove any existing correction weights.
- Rotate tire 180 degrees on wheel of reject tire/wheel assembly.
- Soap tire and wheel. Re-inflate tire/wheel assembly and balance and ensure uniformity is below specifications.
- If the/wheel assembly is rejected again, remove the tire from wheel and check static balance of wheel.
- If static wheel imbalance is less than 28 grams, return wheel to production and return tire to the supplier for excessive imbalance.
- After balance is complete, re-measure balance to make sure the specifications are met.
Tire Terminology and Definitions
Air Pressure
The amount of air inside the tire pressing outward on each square inch
of the tire. Air pressure is expressed in kPa (kilopascal) or psi (pounds per
square inch).
Acc ...
Tire and Wheel Balancing (Collet Cone Selection)
Important: Never use the hub cap bore to center the wheel onto
the balancer. The pilot bore (on the hub side of the wheel) is machined
to be concentric to very tight non - standard tole ...
Other materials:
Vehicle Alarm System
This vehicle has an anti-theft alarm system.
The indicator light on the instrument panel near the windshield indicates the
status of the system.
Off: Vehicle is disarmed.
On Solid: Vehicle is secured during the delay to arm the system.
Fast Flash: Vehicle is unsecured. A door, the hood, or t ...
If the Off Indicator Is Lit for an Adult-Size Occupant
If a person of adult size is sitting in the front outboard passenger seat, but
the off indicator is lit, it could be because that person is not sitting properly
in the seat. Use the following steps to allow the system to detect that person and
enable the front outboard passenger frontal airb ...
Engine Coolant Thermostat Replacement (LUW)
Removal Procedure
Warning: Refer to Battery Disconnect Warning.
Disconnect the battery negative cable. Refer to Battery Negative Cable
Disconnection and Connection.
Drain the coolant. Refer to Cooling System Draining and Filling.
Disconnect the en ...
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