Chevrolet Sonic Repair Manual: Metric Wheel Nuts and Bolts Description
Metric wheel/nuts and bolts are identified in the following way:
- The wheel/nut has the word Metric stamped on the face.
- The letter M is stamped on the end of the wheel bolt.
The thread sizes of metric wheel/nuts and the bolts are indicated by the following example: M12 x 1.5.
- M = Metric
- 12 = Diameter in millimeters
- 1.5 = Millimeters gap per thread
Lead/Pull Description
At a constant highway speed on a typical straight road, lead/pull is the amount
of effort required at the steering wheel to maintain the vehicle's straight path.
Important: Vehicles will t ...
P-Metric Sized Tires Description
245/50r16953typeloadindep-passengerttemporarylt-lighttruckspeedsymbolsectionwidth(millimeters)235245275construction(sectionwidth)ddagonal(bas)40sectionwidthsectionheight
Replacement tires should be ...
Other materials:
Tire and Wheel Balancing (Wheel Pilot Bore Greasing)
Beginning with MY 2011 vehicle, pilot bore grease should be applied.
To enable this, grease must be applied to the pilot bore to prevent the
wheel from seizing onto the hub.
Refer to Adhesives, Fluids, Lubricants, and Sealers for pilot bore lubricant
part number.
Do not use any pene ...
Spark Plug Inspection
Spark Plug Usage
Ensure that the correct spark plug is installed. An incorrect spark
plug causes driveability conditions.
Ensure that the spark plug has the correct heat range. An incorrect
heat range causes the following conditions:
Spark plug fouling—Colder plu ...
Engine Replacement (Manual Transmission)
Special Tools
J-45859 Wheel Drive Shaft Remover .
CH-807 Closure Plugs .
For equivalent regional tools, refer to Special Tools.
Removal Procedure
Remove the battery and battery tray. Refer to
Battery Tray Replacement.
Relieve the fuel system pressure. Refer to
...
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