One problem related to engine exhaust system has been reported for the 2007 Chevrolet Silverado. The most recently reported issues are listed below.
After buying my truck I noticed a "tick" noise from the exhaust on my truck. After taking my truck to the shop I was told that my exhaust bolts into the engine were broken. This in hand made me fail the emission test and costing me alot of money. After research it is stated in many places that this is a common occurrence with these chevy models, and chevy refuses to do anything about polluting the environment and costing it owners money in thing that should not break ever.