Silicone grease on weatherstrips will make them last longer, seal better, and not stick or squeak. Apply silicone grease with a clean cloth. During very cold, damp weather frequent application may be required.
See Recommended Fluids and Lubricants.
Chevrolet Cobalt Service & Repair Manual. Cooling Fan, Replace
1.
Disconnect cooling fan harness electrical
connector.
2.
Disconnect fan wires and relays from
shroud.
3.
Raise and support the vehicle.
4.
Remove cooling fan assembly from ...