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.