My exhaust seems to make a hissing sound every few seconds or so when the car is idling. Is anyone else noticing this?

 

I got the same hissing sound at idle. I was worried that the exhaust is leaking, but after searching and asking, the hissing sound is from the resonator. Someone correct me if i'm wrong. It kinda hisses then stop then hiss right?

 

an idea--- most cars will create some amount of water in the exhaust. i wonder if this is happening, then the condensed water rolls to a hot spot in the tail pipe and hisses as it hits the hot metal- I will try to listen (although out here in AZ it is 115 degrees, and no humidity, so no condensation in the summer...

 

I have the same sound.....
i was worried before, and after i know what it is, i am much more relieve...

 

Thats the "Dodge Viper" factory option

 

hahaha.. guys its nothing to worry about, check this out next time you turn your car on (preferably when its cold) go into the passenger side and open up the glove box.. and listen carefully, in the back or under that compartment is your fuel pump, that is what makes the hissing sound.. happens in ALL z's

 

check for snakes

 

Same sound here, but it goes away once the car gets to operating temp.

 

fuel pump, mine does it too

 

i have the HKS ti-dual exhaust and i have a hissing noise about when it hits 3000rpms....i don't think the exhaust is leaked or anything

 

The hissing is normal. Had it the day I picked up the Z. Still have it even after the exhaust. Also if you have really good ears. There is a whining sound at idle.