Before leaving the vehicle, fully press the clutch pedal down, move the shift lever into R (Reverse), and firmly apply the parking brake. Once the shift lever has been placed in R (Reverse) with the clutch pedal pressed down, the ignition key can be turned to LOCK/OFF, then remove the key and release the clutch pedal.
See Manual Transmission Operation.
Chevrolet Cobalt Service & Repair Manual. Alternator Pulley, Replace
Caution: Wear suitable eye
protection and heavy leather gloves when removing and installing pulley.
Do not remove or install pulley
with alternator in upright position.
Removal
1.
Remove alternator as outlined in "Alternator/Generat ...