Perhaps a bad speaker.
yes, that or you have them shut off on the dash.
Five wheels would be the answer. Chevy Cobalt's drive on 4 wheels. Then there is usually one in the trunk for a spare. So unless the car has lost a wheel somewhere along the way, that is how many wheels a Chevy Cobalt has.
Tire out of balance, bent wheel, or if it vibrates only when braking you have a warped rotor.
Leak in heater core
because its a gm vehicle
My experiences with the 09 Cobalt are that there is no chip, and I would suspect the same would hold true for a model from four years earlier.
"A trade in value of a 2007 Chevy Cobalt will depend upon many factors, like the condition of the vehicle and the mileage. But an average trade in value would be between $5000 and $6000."
No contest, Cobalt SS by about 2 seconds in a 1/4 mile race. Cobalt SS could take corvettes from 1975-early 1980's.
I would use what the owners manual recommends. It may be written on the oil cap .
No, because the 1996 Pontiac Grand Am came with a 1.8L rotary V8 and the Chevy Cobalt came with n/a 2.0 that tops out around 110 while the Grand Am can get up to 190mph.
It would have a 195 degree thermostat so it would be in that range.
In the trunk under the rear speaker panel.