This vehicle has systems that operate on a radio frequency that comply with Part 15 of the Federal Communications Commission (FCC) Rules and with RSS-210/211 of Industry Canada.
Operation is subject to the following two conditions: 1. The device may not cause interference.
2. The device must accept any interference received, including interference that may cause undesired operation of the device.
Changes or modifications to any of these systems by other than an authorized service facility could void authorization to use this equipment.
Chevrolet Cobalt Service & Repair Manual. Crankshaft Main Bearing Clearance Measure
Method A
1.
Measure the crankshaft bearing journal
diameter with a micrometer in several places, 90 degrees apart.
Average the measurements.
2.
Measure the crankshaft bearing journal
taper and runout.
...