Hissing Noise after Engine Shutdown?

Airtrack · 07-23-2006, 03:08 AM

Hey guys,

I did a search on the forum but didn't find anything on this. After I parked my car in my garage today I noticed a hissing noise coming from the front [engine?] and it sounds kinda like air is leaking out of somewhere. I'm new to cars so don't know much about it. If it matters at all it was very hot today and I was running A/C almost the whole time. The noise lasted a good 3 minutes and it didn't sound very nice. Has anyone else experienced/heard about this problem? Thanks!

2006 LX Coupe

luke · 07-23-2006, 03:46 AM

Yes I also heard this in my car. I got out and bent down to pick a up a piece of trash of the ground in my garage and heard a hissing noise on the right side of the engine. I had to have my ear right up to the front grill to really hear it though. I don't know what it could be.

av911 · 07-23-2006, 04:43 AM

I have the same hissing sound and I also use the A/C.

Torredo · 07-23-2006, 04:44 AM

thats what it is.... the A/C

JeShUa · 07-23-2006, 04:45 AM

I'm fairly certain its just cooling down?

**jasonandre** · 07-23-2006, 08:22 AM

Snake! Snake! OOooo, it's a snaaaake!

My car does it too. It's just a cooling off process. I don't think it's anything to worry about.

**atruhondagrl** · 07-23-2006, 08:43 AM

Lol.

^^^

If you think hissing is bad, you should have heard the sounds my del Sol used to make when it was cooling down.

BlueSi · 07-23-2006, 01:24 PM

I posted the same question a few months ago with almost the exact title. So don't know how you searched but I have heard the same hissing. It is just the A/C releasing pressure.

Airtrack · 07-23-2006, 03:27 PM

Cool thanks guys. Guess I searched 'hiss' instead of 'hissing' lol

targettuning · 07-24-2006, 09:39 AM

Since the AC system is a closed loop it isn't venting pressure but it is equalizing between the high and low pressure sides of the compressor. All normal!

si_civic · 07-25-2006, 01:17 AM

Normal. When you shut off an engine, it is still sucking air, and since you have a CAI installed, you can hear this phenomenom happening right before you.

07-23-2006, 03:08 AM	#1 (permalink)
Airtrack Senior Member Join Date: Jul 2006 Location: British Columbia Posts: 159 iTrader: 0 / 0%	Hissing Noise after Engine Shutdown? Hey guys, I did a search on the forum but didn't find anything on this. After I parked my car in my garage today I noticed a hissing noise coming from the front [engine?] and it sounds kinda like air is leaking out of somewhere. I'm new to cars so don't know much about it. If it matters at all it was very hot today and I was running A/C almost the whole time. The noise lasted a good 3 minutes and it didn't sound very nice. Has anyone else experienced/heard about this problem? Thanks! 2006 LX Coupe

07-23-2006, 08:43 AM	#7 (permalink)
atruhondagrl Why...so...serious? Join Date: Apr 2006 Location: Gotham City Posts: 23,358 iTrader: 22 / 100%	Lol. ^^^ If you think hissing is bad, you should have heard the sounds my del Sol used to make when it was cooling down. __________________ "I'm a dog chasing cars. I don't have plans. I just do things. I'm not a schemer. "

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
2006 Civic Engine: I-VTEC	webby	Garage	8	10-15-2007 11:54 PM
Kind of interesting - Honda Chronology 1946-2005	webby	Water Cooler	4	10-04-2006 09:39 PM
Engine Noise at 6000 RPMS	Nathan	Mechanical Problems & Technical Chat	10	04-20-2006 10:35 AM
2006 Honda Civic Engine Information	webby	Garage	4	08-04-2005 01:53 PM
2006 honda world news	webby	Garage	0	07-25-2005 09:31 AM

07-23-2006, 03:46 AM	#2 (permalink)
luke Member Join Date: Jan 2006 Location: B.C. Canada Posts: 35 iTrader: 0 / 0%	Yes I also heard this in my car. I got out and bent down to pick a up a piece of trash of the ground in my garage and heard a hissing noise on the right side of the engine. I had to have my ear right up to the front grill to really hear it though. I don't know what it could be.

07-23-2006, 04:43 AM	#3 (permalink)
av911 Senior Member Join Date: Feb 2006 Location: San Francisco Age: 26 Posts: 1,116 iTrader: 0 / 0%	I have the same hissing sound and I also use the A/C.

07-23-2006, 04:44 AM	#4 (permalink)
Torredo Senior Member Join Date: Jul 2006 Posts: 1,160 iTrader: 0 / 0%	thats what it is.... the A/C

07-23-2006, 04:45 AM	#5 (permalink)
JeShUa Senior Member Join Date: Apr 2006 Posts: 12,197 Keepin` it Phresh iTrader: 11 / 100%	I'm fairly certain its just cooling down?

07-23-2006, 01:24 PM	#8 (permalink)
BlueSi Senior Member Join Date: Apr 2006 Location: NOVA Posts: 159 iTrader: 0 / 0%	I posted the same question a few months ago with almost the exact title. So don't know how you searched but I have heard the same hissing. It is just the A/C releasing pressure.

07-23-2006, 03:27 PM	#9 (permalink)
Airtrack Senior Member Join Date: Jul 2006 Location: British Columbia Posts: 159 iTrader: 0 / 0%	Cool thanks guys. Guess I searched 'hiss' instead of 'hissing' lol

07-24-2006, 09:39 AM	#10 (permalink)
targettuning Senior Member Join Date: Jun 2006 Location: south central Pa Posts: 161 iTrader: 0 / 0%	Since the AC system is a closed loop it isn't venting pressure but it is equalizing between the high and low pressure sides of the compressor. All normal!

07-25-2006, 01:17 AM	#11 (permalink)
si_civic Senior Member Join Date: Jul 2006 Location: B.C. ,Canada Age: 30 Posts: 4,608 A/Cst.D.F.Abate iTrader: 10 / 100%	Normal. When you shut off an engine, it is still sucking air, and since you have a CAI installed, you can hear this phenomenom happening right before you.