Pcv hose hiss

Wilson2608 · 11-22-2015, 12:02 PM

As the title says, does anyone else hear a constant hiss near the intake manifold and pcv hose? To me it sounds like the hiss goes all the way throughout the hose. Been trying to hunt down a vacuum leak with no luck ..
Have a 2009 Nissan 370z

Mandingo · 11-22-2015, 12:33 PM

Both of mine hiss too. I'm pretty sure its normal.

The PCV valve outlet is pretty small. I think that is what creates the hiss sound.

synolimit · 11-22-2015, 08:58 PM

Normal, no issues.

11-22-2015, 12:02 PM	#1 (permalink)
Wilson2608 Enthusiast Member Join Date: Dec 2014 Location: Nashville Posts: 301 Drives: Nissan 370Z Sport Rep Power: 12	Pcv hose hiss As the title says, does anyone else hear a constant hiss near the intake manifold and pcv hose? To me it sounds like the hiss goes all the way throughout the hose. Been trying to hunt down a vacuum leak with no luck .. Have a 2009 Nissan 370z

11-22-2015, 12:33 PM	#2 (permalink)
Mandingo Track Member Join Date: Nov 2010 Location: Dallas Posts: 625 Drives: '10 370z 6spd Rep Power: 3372	Both of mine hiss too. I'm pretty sure its normal. The PCV valve outlet is pretty small. I think that is what creates the hiss sound. __________________ some mods

11-22-2015, 08:58 PM	#3 (permalink)
synolimit A True Z Fanatic Join Date: May 2013 Location: Columbus, OH Posts: 5,051 Drives: 2013 Silver 370z Rep Power: 3390	Normal, no issues. __________________ 13 370z-

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