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Discussion Starter · #1 ·
Hello, don't know if anyone has come across this but under relatively hard acceleration I hear a hissing noise and then when I let off the pedal I hear the noise that a dump valve would make, the noise is easier to hear with all windows closed strangely, this might indicate the problem is at the top or back of the engine close to bulk head is - right where the throttle and intake manifold is, great!.
As far as I have read the car, as stock, should not make these sounds.
Thoughts?
 

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Ive heard of this before...It usually means that a hose has come loose somewhere and is sucking in air
I would contact the dealer
 
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