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Musty smell in Buick Lesabre

When it is damp or humid outside my car smells musty I can't use my defrost or heat I have to have my windows open.

Posted by Anonymous on


6 Suggested Answers

  • 2 Answers

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Posted on Jan 02, 2017

  • 37 Answers


There's no cabin air filter on your vehicle. What happens is dust, lint or so-on gets trapped in the evaporator core for the a/c and starts to stink over time. Ask your local parts store for a de-oderizor spray for your a/c.

Posted on Nov 08, 2008

  • 1050 Answers

SOURCE: 07 Honda Civic air conditioner has a musty smell.

You need to make sure that the evaporator housing drain is clear. There will be a small tube or opening that usually drains out under the engine compartment near the passenger side. Run the A/C with the car raised safely, and look underneath, you should see it dripping, if not, you'll have to find where it is supposed to be dripping and clean it out with something like a pipe cleaner. Even if you see it dripping, clean it out. Then you have to buy a can of aerosol A/C disinfectant, this should be available at any good auto parts store. Turn the A/C on high and spray the disinfectant into the intake vent of the system. The location of the intake may depend how you have the A/C set. "Fresh" pulls from the outside, usually the valence right in front of the window, "recirculation" pulls from inside the car under the center of the dash. I would do both.

Posted on Apr 30, 2009

  • 3433 Answers

SOURCE: I'm smelling gas fumes outside my car. I can

vapor recovery system, should clear itself, some liquid fuel got into the vapor system. Avoid topping off the fuel tank.

Posted on Jul 11, 2009

  • 546 Answers

SOURCE: my car smells like gas inside too

not the catalytic converter. you have a fuel line leaking somewhere. check lines on top of motor at fuel rails.and line leading from tank to filter-filter to motor.

Posted on Sep 28, 2009

  • 15 Answers

SOURCE: car smells like gas but no leaks

Vapor cannister hose under hood could be off or cracked.

Posted on Dec 04, 2009

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1 Answer

My car gets super humid inside and water drips over the dashboard. why is that?

Check your carpets, I bet you have a leak. If the passenger floor is wet and smells like antifreeze you probably have a leak in your heater core. If it is wet other places and just smells like musty water I would look for a leak in that vicinity (windshield, back window, door seal)

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Why do I have radiator steam come thru my heating vents in my car?

Be careful with that Barsleak. Don't be surprised if you see seals and or your radiator blown out. Not only will it plug the leak but it can also plug things that you do not want plugged, such as hoses and seals

Jul 20, 2012 | 1993 Buick LeSabre

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Have a vibe and am the only car in the parking lot where I will either have fogged windows or frost on the inside first thing in the morning the vibe is an 09.

Sounds like either your heater core has a small leak (usually you will smell coolant when you first turn the heat on and will be slowly loosing engine coolant) or, if the condensation is on the inside of all the windows, check the rugs for signs of dampness If you have a body leak the additional humidity inside the car from the damp rugs will cause that. If you find neither, just leave the side windows open about 1/8" and the temp should balance inside and outside and you wont see any condensation.

Jan 04, 2011 | Pontiac Vibe Cars & Trucks

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The windows seem steamed up defrost does not help could this be the heater core if so where is it located

first. do you smell a sweet smell in the car? (coolent or antifreeze smell?)

If you have that smell, you have a leak.

If not.... you need to make sure the A/C is wirking. I know that sounds weird, but the A/C helps the defroster work by taking the moisture out.

Dec 26, 2010 | 2000 Lincoln LS

5 Answers

Heater immediately fogs all windows and there is a sweet odor in the cab of 2003 Buick Rendezvous, defroster works fine, but will not clear the windows after heat is put on

Sounds like a possible heater core failure(hole in it) the smell indicates to me the coolant(anti-freeze) is leaking into the passenger compartment.
Check the carpet in front of the front passenger seat for moisture, this would confirm heater core leak.
Good luck !

Jan 28, 2010 | 2003 Buick Rendezvous

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Back to problems with my 2000 Buick La Sabre. I noticed this last year and now it's happening again. Sometimes when the heat is on there is an odor that smells like melted candle wax, the smell can be so...

I don't really know what could be causing a wax smell specifically, but if crayons made their way into the duct-work then that could be your problem. Other wise you may want to inspect the heater-core, could be clogged (for debris or mold) and cabin air-filter (IF APPLICABLE).

Dec 10, 2009 | 2000 Buick LeSabre

2 Answers

Car smells like gas but no leaks

Vapor cannister hose under hood could be off or cracked.

Dec 04, 2009 | 2001 Buick Regal

1 Answer

Windshield steam up after it sits awhile when colder wheather starts from when I bought new we are told they all do it by g m c I never beleaved them.

WOW this is not normal make sure inside window clean dirty window holds more moisture, also make sure you don't have water leak may have musty smell in car is carpet wet causing high humidity in car, does defroster clean window quickly if not does ac work? Also have them call tac (GM HELP LINE)

Oct 11, 2009 | 2007 Pontiac Montana

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