To signal to a driver in front of you that you want to pass, pull the turn signal/multifunction lever until the high-beam headlamps come on. Then release the lever to turn them off.
Chevrolet Cobalt Service & Repair Manual. Valve Cover, Replace
Removal
1.
Loosen vent hose clamp at air cleaner
resonator, air cleaner intake duct clamp at air cleaner outlet resonator.
2.
Loosen air cleaner outlet resonator
to throttle body clamp, located forward of accelerator cable bracket ...