Jeep started a clicking noise in the front end this weekend, sounds like it is coming from front passenger side. Here is what I know. Does not click when idle, does not click at low RPM, does not click at normal load. Seems that it only clicks when in drive and mash the gas, or in reverse sometimes, and it seems to be a click, click, click in relation to rpms. Can not tell if it is coming from an accessory (alternator, etc.), drivetrain, etc. Clicking sounds like pen clicking almost. Does it in both 4wd and 2wd.