So, I come off the highway on my way home, and as I take it out of gear, I hear a pretty loud tapping. Upon further inspection, the tapping sound only occurs when i'm idling, when I'm on the gas, it perfect. no loss of power, no sounds. Oil was not abnormally low, nothing obvious as a cause. I haven't had a chance to look at it yet(it was dark when I got home) but I'm thinking I need some new lifters, I haven't done this before, from my manual, it looks easy. Not particularly looking to replace the cam at this point, unless someone wants to convince me otherwise! The manual also lists the water pump as a possible tapping/clicking sound, and also could be a possiblity, since I burned one up on the highway about 6 months ago. I drive an 89' yj 2.5, on 31's.
I guess my question is, why the heck isn't it tapping under load? I hope it's not something serious I need a complete teardown for, because I don't have the time to do that!