Passenger side valves have started ticking like a diesel engine on idle. Oil change with additive for oil lifters did not help. I would imagine this is the issue for which FCA issued an extended warranty to 150k mi. My engine is on 231k mi. So I need to do this on my own. What is the right way to do the oil lifter job? I need to order all the right parts so I have everything to do this when I take the engine apart. Do I need any special instruments, for valves?