I took my 2004 GMC Sierra in for maintenance a few days ago. The water pump was replace along with several maintenance items, tranny and radiator flushed, both differentials serviced. Since then I have the annoying periodic rattle that wasn't present previously. I returned a few days later and asked to have it checked. They would not acknowledge the rattle could be a result from the service and wanted $100 just to check it out. Now I have this constant reminder (the rattle) of the questionable service I received. I will not be back.
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