Could an oil overfill cause an intermittent engine tapping noise?

What is your question?

Ever since the dealer performed 100k scheduled mait. at about 130k, Ive been having engine noise that I didn't have before. I take good care of my car and other than this noise, it sounds like the engine is still running well and strong at 165k. After the mait., I complained and they changed the oil. After that I noticed that my oil pressure was running high so I checked it and it was overfilled. I took it back to the dealer and they drained some but didn't measure how much it was over. Could this have caused the problem. Maybe the oil pump is going out? Whatever you can help with will be appreciated. Thank you.