gasping air ?

[alotawatts]

2000 4cyl
At idle .....with my head under the hood over the intake plenum area I can hear an intermittent 'sipping' of air. Is this normal air metering or more likely a vacuum leak etc ?
Thx

[Stillrunning]

Idle steady?

[bigbird]

a sound clip would help the most. it does make some "sucking" noises but loud is a good indicator of a leak. but if u have to hold ur ear over it and the car runs ok then thats normal.

[alotawatts]

Idle is steady...but a little slow. Hiss is loud enough to hear with out getting real close..
?

[nuchieboy]

check all ur vacuumn line hoses

[Curry]

sounds like a vacuum leak... check your llnes.
It sounds like its gasping for air, but only when the car is at idle. right?

I had this same problem. A line popped out from behind the intake manifold

[Stillrunning]

Originally Posted by alotawatts

Idle is steady...but a little slow

Also check your EGR. It could be leaking which will lower idle. If it leaks two much idle will be unstable or will stall.