I purchased a 1999 Lexus ES350 with 75000 miles on March 2021. I have driven the car 11000 miles and the car runs great and I like the car very much. My only concern is my machinic advised me the engine has a piston slap. There is some engine noise, but I am hoping it could be something else less sever then a piston slap. I would like to keep the car, but I don't want to have an expensive repair down the road. I am also planning a long car trip to Florida and don't want any problems. Has anyone ever heard of this problem with Lexus engines? If it is a piston slap is that a big problem ? should I trade the car now to avoid an expensive repair later? Could it be another problem making the engine noise ?Thank you in advance for your thoughts.