2003 GMC Yukon Repair Question
Asked on October 30, 2008
2003 GMC Yukon plenum gasket
Engine Performance problem
2003 GMC Yukon V8 Four Wheel Drive Automatic 81500 miles
2003 GMC Yukon 5.3L V8----Rough idle, especially on some recent cooler mornings. The truck is at the shop and I have read several sites talking about the plenum gaskets. The shop took me back and showed me the tests they were running. However, I have read there is an upper and lower gasket on this truck. The shop tells me there is only one! Am I being pulled around? The repairs will cost $180 for the gasket, $300 (3.5 hrs) labor, $20 shop cost, some tax, and then an added $199 for Throttle body injection service. Total $795.00. Any kind words of advice from the experts?
2003 GMC Yukon V8 Four Wheel Drive Automatic 81500 miles
2003 GMC Yukon 5.3L V8----Rough idle, especially on some recent cooler mornings. The truck is at the shop and I have read several sites talking about the plenum gaskets. The shop took me back and showed me the tests they were running. However, I have read there is an upper and lower gasket on this truck. The shop tells me there is only one! Am I being pulled around? The repairs will cost $180 for the gasket, $300 (3.5 hrs) labor, $20 shop cost, some tax, and then an added $199 for Throttle body injection service. Total $795.00. Any kind words of advice from the experts?
Answer
Replied on October 30, 2008
this engine has a lower plentum gasket and a lower intake manifold gasket. ask them which one?what tests are they performing?what codes? the old plentum gaskets should be orange,the updated gaskets should be green.there is a bulletin for the problem.