Hissing Noise From Engine Bay

BlackDiamond · 02-04-2008, 03:35 AM

After driving and i shut off my car i hear a hissing sound or something like it coming out of the engine bay but its not loud and it stops when the engine cools down. It sounds like it may be coming from the exhaust mainfold but im not sure. Its not loud, but the only reason i realized it is because one day i parked into my garage and it was quite and i herd a sound and opened up the hood and it was coming from my car. When i leaned my head down to see where it was coming from it sounded close to the exhaust manifold but not sure thats what it is. Does anybody have an idea?

tomasro · 02-04-2008, 03:40 AM

fuel pump releasing pressure?

BlackDiamond · 02-04-2008, 03:47 AM

Quote:

Originally Posted by tomasro

fuel pump releasing pressure?

Wheres that at, and it hasnt always been doing that

BlackDiamond · 02-04-2008, 03:49 AM

It really sounds like its coming from the exhaust manifold

tomasro · 02-04-2008, 04:52 AM

a/c condenser shutting down...only other thing that would make a constant pressure release that I can think of...no exhaust manifold should make that noise with the engine off

av911 · 02-04-2008, 01:32 PM

Quote:

Originally Posted by tomasro

a/c condenser shutting down...only other thing that would make a constant pressure release that I can think of...no exhaust manifold should make that noise with the engine off

buurner · 02-04-2008, 01:41 PM

check your radiator cap!!!

02-04-2008, 03:35 AM	#1 (permalink)
BlackDiamond Senior Member Join Date: Dec 2007 Location: Texas Posts: 116 John iTrader: 5 / 100%	Hissing Noise From Engine Bay After driving and i shut off my car i hear a hissing sound or something like it coming out of the engine bay but its not loud and it stops when the engine cools down. It sounds like it may be coming from the exhaust mainfold but im not sure. Its not loud, but the only reason i realized it is because one day i parked into my garage and it was quite and i herd a sound and opened up the hood and it was coming from my car. When i leaned my head down to see where it was coming from it sounded close to the exhaust manifold but not sure thats what it is. Does anybody have an idea?

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02-04-2008, 03:40 AM	#2 (permalink)
tomasro Senior Member Join Date: Aug 2005 Location: San Carlos, CA Age: 25 Posts: 1,667 Turner iTrader: 2 / 100%	fuel pump releasing pressure?

02-04-2008, 03:49 AM	#4 (permalink)
BlackDiamond Senior Member Join Date: Dec 2007 Location: Texas Posts: 116 John iTrader: 5 / 100%	It really sounds like its coming from the exhaust manifold

02-04-2008, 04:52 AM	#5 (permalink)
tomasro Senior Member Join Date: Aug 2005 Location: San Carlos, CA Age: 25 Posts: 1,667 Turner iTrader: 2 / 100%	a/c condenser shutting down...only other thing that would make a constant pressure release that I can think of...no exhaust manifold should make that noise with the engine off

02-04-2008, 01:41 PM	#7 (permalink)
buurner Senior Member Join Date: Nov 2007 Location: Memphis,TN Age: 21 Posts: 505 iTrader: 7 / 100%	check your radiator cap!!!