Bad turbo symptoms on Chevy Cruze can include a decrease in power, loss of boost pressure, engine misfires, increased exhaust gas temperatures, and a check engine light. These symptoms can be caused by a variety of issues, including a clogged turbocharger, damaged turbocharger bearings, or a faulty wastegate. If you notice any of these symptoms, it's important to have your Cruze checked out by a qualified mechanic as soon as possible to avoid further damage to your engine.