You asked: Why does my car AC smell like poop?

j/k yeah it might be moisture in your vent system or a dirty cabin filter. As fetch says take it to the dealer and have them change your filter and see if they can clean out your air system.

Why does my car smell like poop when I turn on the AC?

What Causes the Car AC to Smell Bad? In short: moisture. … As these coils are colder than the air around them, hot air flowing into the unit can create moisture pockets that surround the condensing unit in your AC system; which create small pools of water that are drained outside of the car via the drain line.

Why does my AC smell like sewage?

The smell of raw sewage coming from an AC vent is never a good sign. It usually indicates a backed up sewer line or ruptured sewer vent pipe somewhere near the ductwork. All it takes is a bit of methane from the backup to fill your house with the nasty smell.

How do I fix a smelly car air conditioner?

Start your car. Turn the air-conditioning on normal and run the fan on high (leave windows open) Spray (a commercial AC Odour Eliminator spray) liberally through all intake vents located in the cowl area of your vehicle (usually outside the car, below windshield or under the dash)

INTERESTING:  Quick Answer: Does disconnecting a car battery save power?

Why do my vents smell like poop?

Sewage Smell

And if that stench is coming from your vents, it’s not a good sign. It could mean there’s a backed up sewer line or ruptured sewer pipe somewhere near your ductwork. And that will emit a smell of methane, which can fill up your home with a foul smell.

Why does my car smell like rotten eggs when I turn on the AC?

The most common cause is a broken catalytic converter. This part of your car’s emissions system works by converting harmful gases like hydrogen sulfide into harmless gases like sulfur dioxide. … If it fails to regulate, your catalytic converter can become clogged with too much oil and overwhelm the emissions system.

Why does my AC smell like rotten eggs?

An air conditioner that smells like rotten eggs or sulphur almost always means one thing: there’s a gas leak in your house, which is getting into your ductwork. Natural gas is a hazardous substance. It can catch fire, explode, and/or reduce oxygen levels in the bloodstream with severe, often fatal, consequences.

Why does my AC smell funny?

The most common smell is dust. That’s completely normal. After sitting for months, dust will accumulate in your system and the AC just needs to burn everything off. If you’re still smelling something funny after a few days, it may be time to give your HVAC technician a call.

Is it safe to spray Lysol in car vents?

If the AC in your car is making a foul smell, it may well be inundated with bacteria. But rather than spend a bunch of your hard-earned money of getting your AC system flushed, you can clear it out yourself using just a can of Lysol disinfectant spray.

INTERESTING:  How do you fix tears in car upholstery?

How do you clean car AC vents?


  1. Choose the appropriate cleaning brush. …
  2. Make use of a Steam Cleaner. …
  3. A scented cleaning solution can be an add-on. …
  4. Periodically replace the air filter. …
  5. Clean the air intake vents regularly. …
  6. Switch-off AC before reaching your destination. …
  7. Run blower minus the air conditioner. …
  8. To Conclude.