One problem related to catalytic convertor has been reported for the 2002 Chevrolet Tahoe. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Chevrolet Tahoe based on all problems reported for the 2002 Tahoe.
The exhaust bolts are breaking causing the exhaust to leak. The related problems will likely be poor fuel economy, increased emissions and potentially failed emissions test. The catalytic convertor was already replaced on the same side as the exhaust manifold with the broken bolts. Problem was not noticed until the second bolt broke thus not sure when the original problem occurred. The problem appears to effecting numerous other vehicles thus a potential large global impact.