One problem related to engine exhaust system has been reported for the 2000 GMC W Series. The most recently reported issues are listed below.
Contact states there is a recall on the exhaust valve stem for his vehicle. The recall is in effect until 11/30/05; gm recall number is gm 0000119251. Due to the valve stem breaking the engine is needing to be replaced. The service dealer did inform the consumer this was why the engine needs to be replaced.