One problem related to engine exhaust system has been reported for the 2007 Chevrolet Suburban. The most recently reported issues are listed below.
We have a 2007 chevy Suburban it starting using excess oil around 21,000 miles when have had 2 oil consumption test done at the dealer. They replaced value seals 1,4,7,6 . . Then started another oil consumption test. Low and behold it lost a quart at 1750 miles. They are now looking at replacing lifters. . . We currently have 33,000 miles on the vehicle. . Have to keep running back every 500 miles to get this check. At first they kept saying normal to lose a quart of oil but now realize it is not normal. . Have yet resolved the issue. Very upsetting to have a new vehicle and paid $48k and have to keep returning to the repair shop. We have looked up on the internet and it seems there has been many issue with this vehicle. .