Question about 2012 Buick Verano

1 Answer

I have foul odor coming from vent when blower is on

When I first turn on the car there is a odor that comes through the vents especially if it is warm outside, after you drive awhile it goes away.

Posted by on


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert who has written 50 answers of more than 400 characters.


    An expert whose answer gotĀ voted for 20 times.

  • Expert
  • 176 Answers

A very common malidy, more then likely you have a mouse for a guest in your cabin air filter. Puzzled me for days when my wife's car was turned into a mouse Bed & Breakfast..make sure you change the filter after cleaning the mess out

Thanks Terry

Posted on Mar 14, 2014


6 Suggested Answers


6ya staff

  • 2 Answers


Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Lee N.

  • 426 Answers

SOURCE: air not coming out of vents

what your problem is that you have a issue with the vacume system, what i did was removed the bottom panel on the passenger side looked up and you will see a bunch of wires, look for a black box (should be right above your head by time you squeeze in there and it has a yellow/amberish type of color you will see that you can remove this its a rubber piece cut the pink tube on the side about 2 inches away from the plug assembly, and slide it into the blue tube this will bypass all controlls and shoot the air out of the front vents, you WILL NOT beable to set it to defrost max/normal or htr (mainly which vent flaps are where) this has worked formonths and the a/c acts as if its on normal mode to use the heat just slide the switch :) until you can test all the other equip this will keep you cool or warm

Posted on Jul 24, 2008


  • 1 Answer

SOURCE: air conditioner blower

I found the vac lin broke under the battery

Posted on Dec 04, 2008


  • 2 Answers

SOURCE: when A/C is on heat comes out of the driver side

I have a 99 Park Avenue and I had the same problem. The freon level was low.
Hope this helps.

Posted on Feb 18, 2009


  • 16 Answers

SOURCE: 2001 buick lesabre-ac problems

  • Assumed your AC unit is OK, but uneven temperature distribution. Try to throw the heater on an off severtime. A sticky valve on the heater would cause similar problem.
  • Observe the RPM while parking your car. While the AC cut in cut out (or turn on an off). If it cause no load on the engine. The freon may be low or the compressor is bad. In this case only the intake side of the evaporator is cooler than the other side.

Posted on Jun 04, 2009


  • 3 Answers

SOURCE: 2000 Buick Century . Blower motor works but no air

The louvers inside your vents are powered by a vacuum (?) that comes through a small rubber tube under your hood. I had to do some intensive googling to find this out. Usually what happens is that you change your battery, and accidentally pinch the rubber tube. If you're lucky, the mechanic will believe you before they start replacing parts. Maybe you can even find it yourself!

Posted on Jul 24, 2009

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Foul odor out of vents when I turn heater on

Does it smell like mold, or gasoline, or what ?

Feb 11, 2014 | 2008 Chevrolet Impala LT

1 Answer

Bad smell from heating system

I would guess so because there should not be an odor coming from your vents and if it is worse when the heat is on there's a chance something literally crawled up there and died! I always wanted to say that not referring to peoples butts. lol But all kidding aside. You would be surprised at the little critters that can find there way into your venting system. Or just organic material that has gotten in there somehow and decayed. Best of luck tracking down those oderiferous emanations.

Dec 20, 2013 | Eagle Vision Cars & Trucks

2 Answers

I hCear a continuous clicking sound and smell a foul odor both coming from inside the dash of my 2004 Toyota Camry. It does not appear to cause any problems with the running and operation of the vehicle. ...

i use a rubber hose to my ear
then move it about the dash, find the clicker.
then photo it and ask for what it is here, click add photo.
or with same photo, look in the fsm

Oct 16, 2013 | Toyota Cars & Trucks

1 Answer

Only warm heat coming out of the dash vent

take to dealership. under warrenty

Jan 22, 2013 | 2010 Peugeot 308 CC

1 Answer

Ac has bad odor coming out of vents

remove the blower motor and check the fan for a mouse nest

Jun 23, 2012 | Cars & Trucks

1 Answer

My front defroster is not working at its best, however the back one is working properly. If I add any heat while trying to defrost my windows the problem get worst.

Sounds like the heater core is leaking coolant. If it is leaking it will blow steam out of defrost vents and fog the windshield. Symptoms: low coolant level in radiator, steam coming out vents when engine is warmed up, odor of anti-freeze coming out of vents, wet carpet in floorboard near heater blower motor.
If so, replace heater core.

Dec 07, 2010 | Ford Taurus Cars & Trucks

2 Answers

Bad odor (Wire sheathing?) from vents when fan is on. We definitely have an intermittant (3 or 4 times in past year) driver side actuator problem. Cannot tell if odor is coming from all vents or not....

the heater core is bad it could be leaking and thats what the smell is coming from. you only smell it when the heat is on is because air flows throught the heater core to warm it by the hot anti freeze that flows through the heater core see if you anti freeze resivoir is low.

Dec 28, 2009 | 2004 GMC Sierra 1500 Crew Cab

1 Answer

Changed the 2 cabin air filters but bad odor still comes out vent

If you run your Air cond on recirculate always try using an air sanitizer in your return vent. Or switch your A/C to outside air flow for for half an hour and raise the rear of your sunroof panel to vent the stale air do this till the smell dissipates and then close he sunroof and reset the A/C to recirculate if desired.

Jun 30, 2009 | 2008 BMW 528i Sedan

1 Answer

A foul odor comes into cabin when the air conditioner is turned on in my 03 Lexus ES 300

Your cabin air filter needs replaced and would be best to have an odor elimnator sprayed in the vent system.

Apr 27, 2009 | 2003 Lexus ES 300

Not finding what you are looking for?
2012 Buick Verano Logo

356 people viewed this question

Ask a Question

Usually answered in minutes!

Top Buick Experts


Level 3 Expert

85206 Answers

Jonah Oneal

Level 3 Expert

14092 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22484 Answers

Are you a Buick Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides