Hissing sound when accelerating - Chevy HHR Network
Chevy HHR Network Forums

Go Back   Chevy HHR Network > Regional - Global > Canadian Mid West

Canadian Mid West NW Territories, Alberta, and Saskatchewan

LinkBack Thread Tools Search this Thread
Old 10-10-2010, 02:12 AM   #1
Join Date: 03-17-2009
Location: Saskatoon
Member #: 14319
Posts: 9
Check out my gallery 
Hissing sound when accelerating

I have an 06 2.4 5 speed, recently a new noise appeared, it makes a hissing sound when I am accelerating, it gets louder when I accelerated harder. Is there a cure for this, and what is it? There are no engine warning lights on, how can it be diagnosed? It has not changed the performance or mileage. Anyone else out there had this annoyance?


Leonard is offline   Reply With Quote
Old 10-10-2010, 04:43 AM   #2
Senior Member
Join Date: 03-22-2010
Location: Russia Ekaterinburg
Member #: 20015
Posts: 1,199
Images: 346
Check out my gallery 
There may be three versions of the noise.
1. Aerodynamic noise. Eg. Aerodynamic noise arises from not tightly closed window. If you have recently installed the equipment on the car (a new antenna or fog lights). If the car appeared little damage (a crack on the bumper, chips on the glass or the edge of the protection of the wings was released). All these reasons may give a hissing sound. Inspection of your car carefully. Do not forget to view from the bottom and under the wings.
2. Hissing sound give the tire. If you recently replaced the tires - maybe that's the reason for the noise. Once I was two days searching for the cause of his noise. You'll laugh. The reason: a new asphalt surface. Municipal authorities were simply repaired the road from my house to my office. Tires hummed on smooth new surface. And I have already set aside money on a new wheel hub bearing.
3. Technical reasons. Hissing sound may give ventilation and air conditioning compartment. Verify this simple: redirect the air flow first to the window, then the legs. Let us see if the character does not change the noise. Then just turn off air cooling. Hissing to stop. Hissing sound may occur in the air line air filter engine. There easily fall fallen leaves from the road. Remove the cover of the engine, dismount the tube and clean it. This is a good reason to replace the engine air filter, then do not climb up there again in the future. This simple operation does not take long and complex instruments.
My opinion is. If the hiss - then the problem is in the air currents. Weak belts usually whistle. Killed bearings are buzzing like an airplane or a howl. Air - sizzles. Search. Good luck.
geg is offline   Reply With Quote
Old 10-10-2010, 11:50 AM   #3
Senior Member
Join Date: 06-01-2007
Location: Fairfield, NOR-CAL {2nd home=Disneyland o}
Member #: 3434
Posts: 185
Images: 140
Check out my gallery 
Try check out the Flex pipe for a small crack. A muffler store can possibly do the inspection. Our HHR had the same syptoms you are describing. We found out from the muffler shop that this repair would be covered under the federal emissions warrenty (80k miles) being that the flex pipe was attached to/ part of the cataletic (sp) converter. The dealership took care of the problem and our HHR is once again happy, as are us.

2006 DAYTONA BLUE LS : Lowered with Gold Line Lowering Springs, Rolling on 18" HHR SS Wheels, Carriage Works Billet Grille, IPCW Crystal Clear LED Tail Lights, Dual IMCO Turbo Mufflers = Sportin' Da Cali Street Look !!

Nothing Special ... Just a Daily Driver. But Good Enough for our Frequent DISNEYLAND Trips.

Check Out Our Other Pics Here In The Photo Gallery http://chevyhhr.net/gallery/browseim...=3&userid=3434
DSNYCRZE is offline   Reply With Quote
Old 08-26-2011, 11:35 AM   #4
Senior Member
helhedded's Avatar
Join Date: 11-14-2006
Location: Memphis, Tn
Member #: 2271
Posts: 134
Check out my gallery 
I am having the same issues... A loud hiss that can be heard over the radio but only occurs during acceleration. MPG has dropped considerably since the problem started... from 25.4 to 23.5.

I dropped of the my vehicle at the dealership on Monday and Wednesday afternoon they called to tell me that they couldn't find anything. It was the end of my work day and I couldn't leave my vehicle with them any longer so I said that I would bring it back. I pointed out the noise to the service rep and she acknowledged the issue and said to keep an eye on it for the next couple of weeks.

Looks like I might need a second opinion, or I'll need to start searching for cracks.
helhedded is offline   Reply With Quote
Old 12-02-2011, 08:23 PM   #5
Join Date: 10-25-2010
Location: NY
Member #: 23933
Posts: 5
Check out my gallery 
I had the same hiss from my 06 when accelerating. I noticed there is a weep hole on the bottom of the muffler that had exhaust blowing out of it. I suspect the noise is due to that leak.
bassic.sounds is offline   Reply With Quote
Old 05-28-2012, 06:21 AM   #6
Join Date: 03-17-2009
Location: Saskatoon
Member #: 14319
Posts: 9
Check out my gallery 
The problem was found to be a cracked exhaust flex pipe, replaced, back to normal.
Leonard is offline   Reply With Quote

Similar Threads
Thread Thread Starter Forum Replies Last Post
Hissing Sound All Of A Sudden?? ANN ARBOR MI Problems/Service/Repairs 4 06-02-2015 07:12 AM
2011 HHR Rumble noise when accelerating HELP! ajohnso27410 Problems/Service/Repairs 3 03-13-2014 08:56 PM
Hissing Sound from Engine teknolla General HHR 7 04-27-2013 11:01 AM
Hissing sound from under dash Gol10dr Brakes | Suspension | Shocks | Struts 10 03-15-2012 11:54 PM
Cruise Accelerating by itself stephenm Problems/Service/Repairs 5 03-13-2009 08:26 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -5. The time now is 11:01 AM.

Copyright © 2005 - 2013 Internet Brands, Inc. All rights reserved.
Chevy HHR Network Forums