I notice a hissing noise coming from the RH rear wheel area on my '07 Touring AWD.

It's been too cold to crawl around underneath for a look. I'm guessing it might be an air line for load leveling suspension. Just a hunch.

Anybody else have similar symptoms?

 

I noticed what I think is the same hissing noise a couple days ago. It started after a long road trip. It sounds like it is coming from under the right rear passenger door/wheel area. I looked undernteath and wasn't able to isolate it. I may put the car on ramps and take a better look with it running. Have you been able to find out what it is yet?

Thanks!

 

Oh, and mine is a 2004 AWD.

 

I put my car up on ramps and listened underneath with the engine running. The noise is coming from the right side gas tank area. So, not sure what that's about. Anyone know if there is an in tank fuel pump?

 

I stuck my head under there a couple weeks ago and was unable to pinpoint the source. At the time, the weather was still less than favorable, so I quickly lost interest.

I get back under there in the near future to take another look/listen.

 

The leveling suspension is hydraulic I believe and if you have AWD you have 2 fuel pumps, one on each side of the tank that cradles the drive shaft. One is a transfer pump. I have not heard any noise on my 06.