Piston Problems ? Maybe?
 

I just bought a 1997 Lexus ES with 188,000, miles on it.

I brought it home and I can hear a "clicking" sound coming from the Engine.

Question: If it is a Value Tap

Should I get my Money back if I can?
or
See if I can get a couple years out of it?

It only coast me $3,600.00 Dollars.

Thanks
Paul