One problem related to engine exhaust system has been reported for the 2003 Chevrolet Express 2500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Chevrolet Express 2500 based on all problems reported for the 2003 Express 2500.
Several of the exhaust header bolts are broken on both sides of my 5. 3 litter engine. I did some internet searching and found a lot of people with 5. 3 litter engines having the same issue.