I had a feeling it’d need a new motor. They determined that it didn’t need a long block. Already have a new short block ordered. They said it’d take them a week to do and they’ve done dozens of these already. I’m not worried about it though since it’s all warranty. If they have to replace the whole long block again down the road that’s their problem lolMy guess is that oil is now leaking. Probably good you are having it changed. Get the long block. Btw, I live in NH. Nissan in Concord NH had a tech that has done this several times. He is real good. You can’t even tell my engine was changed. He has the process down. Maybe you can go there to get it done.