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:
Engine Oil Cooler Housing Installation
Clean the engine oil cooler housing to thermostat housing sealing surfaces.
Install 2 NEW gaskets.
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Install the engine oil cooler inlet pipe (3).
Install the engine oil cooler housing (1) and the 5 engine oil cooler bolts (2)
and t ...
Camshaft Position Actuator Solenoid Valve Replacement
Removal Procedure
Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement.
Disconnect the intake camshaft position actuator solenoid valve wiring
harness plug (3).
Disconnect the exhaust camshaft position actuator solenoid valve wiring ...
Throttle Body Inspection and Cleaning
Note: Over extended time and mileage, deposits may accumulate on the
back of the throttle valve plate. The source of the deposit is exhaust gas.
Typically these deposits pose no problem. Occasionally the deposit may accumulate
to a point where perceived pedal effort or throttle valve mov ...
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