Re: Tick in XJ 4.0 L. Help!
well, it sounds like either a lifter or rocker arm. is it stock? how many miles? I have one that gets loud when the oil filter gets dirty. the oil never gets real dirty, but if I change the filter 1/2 way trough an oil change interval, It gets quieter. If it has some miles, it wouldn't hurt to add some seafoam, it helps keep the lifters freed up.