2011 Chevrolet Cruze - CEL and noise

sounds like a lawn mover check engine light

If the CEL is steady, post the codes.
If the CEL is flashing, have it towed to your mechanic.

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That it “sounds like a lawn mower” implies that it’s loud. A hole in the muffler or exhaust could cause the check engine light to come on from too much oxygen. If you do have a serious exhaust leak the car is potentially unsafe.