Anyone know what this could be? A loud continous hissing sound coming from under the hood. I can't really pinpoint, but it sounds like it's coming from around the area circled below.



The engine is acting normal, just this noise. Sounds like a vaccuum line has been cut, and it's sucking air in... Although wouldn't that make the engine run like crap?

Any ideas? Thanks for any and all help!

Jeff

 

When its at an idel does the motor flare liek go up and down continuously(sp)?.

 

No, it idles pretty smooth..

 

going out on a limb here.... but check the elbow. They always get folded under and you don't even realize it. Mine did that once and the car idled perfect. The only time i noticed a problem was when i hit the gas. It would hesitate then go.

Just a thought :-\

 

Check elbow....

MAP sensor is right on top, rubber gommet might be torn/worn...

Also, EGR sensor is in that location, has vacuum lines