Hello everyone,
I am the proud owner of a 97 xj with the 4.0 and automatic with 146000 miles. For a pretty long time (years) it has made a pulsing/or light tick coming from the engine compartment only at around 1700-2000 rpm. Anything above or below that doesn't produce the sound. I'm just wondering if it is normal or not and either way what could be making the noise? Hopefully I described the sound correctly, it's definitely not a knock and my oil pressure is good (37-45 psi at those rpms thru instrument panel, although I believe it reads higher with a mechanical gauge).
Thanks for your help!

 

Unfortunately this is the interwebs and you are driving a Jeep, "sounds" are subjective and to be expected. Unless you are driving and something happens that stops the engine dead in it's tracks, I wouldn't worry too much about it. If you find the sound to be particularity disturbing try some Mudvayne played at a suitable level always works for me.

 

Haha thanks! I don't mind it, I just wanted to make sure that there wasn't a serious problem developing. It's done that for probably as long as I can remember and never effected how it drove.
Thanks again!