Minus the lead tech, I had the exact same issue. On top of that, they would sell shit without proper diag. They sold an intake leak in a late 90s 3.1 gm. Could hear the piston slap when it was drove in. The head coolant ports were completely eroded. Told the advisor it needed an engine. They said no way, they were not even going to try and sell it. The next week when it came back on a tow truck, I used the same tow truck to load my toolbox. When the company you work for depends more on selling credit cards than customer service, GTFO!