vacuum leak( hiss sound)

[aceventura]

Vacuum hose to the fuel regulator?

 

[nikstik]

Could be, I'll do a soapy water test and see if I can see the leak. (bubbles)

 

[Cobra Clutch]

Don't think so as its coming from that back corner more near the engine. Had another look see just now and it almost sounds like its coming from the trani filler tube but not.

I was topping up the tran fluid today and I have the exact same thing.

My A/C gas has gone recently, so I assumed I already had a leak somewhere anyway.

 

[nikstik]

Cobra, you may be on to some thing here as ac doesn't work too. No cold air coming out the vents.

 

[Sp3cial K]

hey guys, i have a 97 VS ute and have the same problem ( i think ) i have a sort of whistling/hissing noise coming from around the back of my engine near the rocker covers. Did anyone find a solution to the problem?

 

[BNGRANT_99]

I had the same thing, took me a few days to track it.. found that the emission control line that attaches under the throttle body was loose. I guess they were glued in originally. Pulled it off with alot of force and re-attached with hose clamp. and no more noise.