Posted a video awhile ago about a hissing type sound awhile ago, never found out what the problem actually was, it just seemed to vanish. Now I have been noticing this noise and want to know if it seems normal. To meet it doesn't sound normal and I only just started noticing it. Now it seems to be near where the other noise was, so maybe that had something to do with it? Anyways just look looking for some input on what it could be or if I am being obsessive about it. Will post a video link.

https://youtu.be/kpd9rgLxauU

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2004 Jeep Liberty Limited 4x4
Skid plates, off road tires, KC Daylighters
Future mods:
Lights, rock rails, roof basket,
and anything else I find on this forum!

The hissing is not clear here in my end, you may want to focus on radiator for any leak.

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2007 Jeep Wrangler JK 2dr 4x4 Rubicon

Might be a vacuum leak.

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U.S. Army Retired

Agree with the vacuum leak. Had the same sound on my 02 and it turned out to be a vacuum hose leak coming off the front of the fuel tank.