LC4 rocker arm and cam wear
The LC4 single eats rocker arms — the coating flakes off the rollers and takes the camshaft with it, a failure ADVrider threads have tracked across years of these engines. Listen for top-end ticking that grows with heat and ask whether updated rockers were ever installed with receipts. Caught early it is a few hundred dollars in parts; a wiped cam doubles the bill.
Ask for repair records covering this item. If it hasn't been addressed and the car is in or near the mileage window, price the $800–$1,600 repair into your offer — or make it the seller's problem.