03 Jeep Liberty rattling noise

[CMAN]

I have 2003 Jeep Liberty 4x4 and I noticed I has a weird rattling noise
Under jeep.. I took it to a shop and they told me it was a tensioner but didn't fix the noise ...I'm thinking it's The drive shaft please help I have a video of the sound

 

[MarkJ]

Simple, does it make the noise while sitting still? Not the drive shaft. Check the Cat and muffler to make sure the insides aren't loose.
Mark

 

[CzarKJ]

Check this first actually makes a chain like rattling noise. Common problem but easy fix.
http://www.jeepkj.com/forum/f202/how-change-front-driveshaft-change-driveshaft-head-47161/

 

[TwoBobsKJ]

I have 2003 Jeep Liberty 4x4 and I noticed I has a weird rattling noise
Under jeep.. I took it to a shop and they told me it was a tensioner but didn't fix the noise ...I'm thinking it's The drive shaft please help I have a video of the sound

If they said it's the "tensioner" it's probably the belt tensioner around which the main drive belt circulates. The drive belt powers the air conditioning compressor, water pump, alternator, and power steering pump and the tensioner keeps the belt appropriately tight. A common wear item that can rattle, squeak and whine when it goes bad. Pretty easy repair/replacement.

Bob