McCarthy Chevrolet of Overland Park

On 03/01/23, I took my car in for service and was told it would be a few days before I would know the issue due to an influx of other service requests. On 03/03/23, after calling for an update, I was told that it would be $3,000 for a new turbo part. When I questioned Kevin, the service representative who assisted me, and asked for an itemization of that figure, he told me it would be $800 for the turbo, $1,100 for labor, and "other parts like gaskets, a hose, and other things need to install the turbo". I further questioned him on the $1,100 difference and he was unable to provide exactly what was needed and restated that it's parts needed to install the turbo. I told him not to do any work and to wait for me to call him within the next 30 minutes. In that time, I found a different certified mechanic who stated it would be $1,200 total for parts and labor. I called back and told Kevin not to do any work and that I will retrieve my car. This was an incredibly poor and outrageously terrible experience for a number of reasons. Kevin charged me the most expensive diagnostic fee allowable and stated it was that price because of the work that had to be done to diagnose the problem. I was charged $180 and he never told me exactly what was done to diagnose the problem, however I paid the fee and retrieved my car. Kevin provided a wrong diagnosis. It was not the turbo, it was an intake manifold issue. The other mechanic explained that the diagnostic codes provided evidence of an intake manifold issue along with the issues I described/experienced in driving my car. Also, the turbo was inspected and was in good condition. So the question remains, how did McCarthy-Morse determine it was the turbo? If I was charged the higher diagnostic fee because "so much" diagnostic work had to be done and the turbo was actually examined, then how could there have possibly been an incorrect diagnosis? Lastly, I've been a long-time customer of McCarthy-Morse for years, as I've purchased two cars from this location and years worth of maintenance services. My teenage daughter is now a licensed driver and I'm looking to purchase a third car as I'm gifting my current car to her. This situation has completely destroyed my relationship and ruined my plans for purchasing a third vehicle from a dealership I've trusted for so long. I'm unable to recommend or make a purchase from a dealership unable to provide quality mechanics and quality maintenance work.