I bought a 2014 F-150 which was certified pre-owne...

I bought a 2014 F-150 which was certified pre-owned with an extended warranty. It has a vibration issue which was mentioned at the time of purchase, and I was told it would be taken care of. It has been back 3 times for the same issue without any fix. I will be making an appointment again today to hopefully get it resolved. The service dept has too many layers to work through. It takes a while to get in the shop after setting the appointment (ex. Call today it may be 2-3 weeks before it can be brought in). Then you have to tell the service writer the same thing that was told to the appointment setter. The 1st time was 3 weeks, the last 2 times were within 7-10 days. There is a lot of room for improvement to reduce the time to get it in, and to cut some personnel layers. The service advisor/writer should be the only one a customer would need to confer with for appointment setting and nature of complaint. I gave it 3 stars for the courtesy of the employees. Hopefully it will get resolved and I can complete a later survey with those results.