NY - engine knock, where to get serviced
First ask to speak to the service manager and tell him you have been getting the run-around and then let him listen to the noise. Tell him you paid good money for the extended warranty and that they need to tell you what the problem is and how long it will take them to fix it. Do not ask him if it sounds normal. Do not tell him what you think it is. All you need to say is that it has been getting worse and you want it fixed. If they do not help make it clear that will tell everyone you know to avoid that dealer. Always be polite, never curse just be very clear that this is their problem and they need to diagnose it and fix it.
Typically knocking sounds are not good. Just because your oil pressure is good does not mean you may not have a serious engine problem. It may be something simple but if it has been getting progressively worse over time it may not be. It will be very difficult for anyone to tell you what is wrong without hearing it and IMHO this is the exact reason why you bought an extended warranty in the first place right?
Good luck and let us know how you make out.


WJ