No one wants to buy my car

It is a 2011 Kia Cerrato with 150k km. I have been told it has ‘piston slap’ which could cost around $2000 to repair or may even need an engine rebuild. I’ve never had any issues aside from some engine noise and my mechanic has never told me about this. Currently priced at $3000 on carsales but everyone who comes to inspect it is turned off by the engine noise. I’m wondering if there’s any hope for me being able to sell this car or how can I get rid of it?? At this point I don’t really care how much money I’ll get for it, I just want to be done with it.