Skip the auto shop - Our mechanics make house calls

Q: Carbon monoxide question

asked by on

If I were to work with my dad on our Honda this weekend for anywhere from 2-10 hours in our garage, would the carbon monoxide be toxic or lethal? I know newer cars release more CO, but would it still be dangerous?

A: Thanks for your interesting scientific ques...

Thanks for your interesting scientific question. Actually, sort of unexpectedly, as the research turned out the principal hazard to the public (i.e., you) from CO (as measured by both mortality and morbidity statistics) has turned out to be the chronic exposure to CO that tens of millions of people experience, not the acute incidents, causing death, that you read about in the newspaper or hear on the news.

That is, a principle scientific finding has that sub-lethal, long term (chronic) exposure to CO, in polluted cities (or that you are contemplating in the garage) is causes permanent, or at least long term, damage to the cardiovascular system as well as the tissues in certain organs. You can readily learn about this "chronic" versus "acute" distinction, and the death toll attributable to each category of exposure, on the Internet.

With regard to your specific question, yes, you could definitely die from acute exposure over 2 hours in a closed in garage (and probably a lot less time than that if the motor is running continuously). Ideally, the acceptable level of exposure to this deadly molecule is close to zero PPM. Consequently, you would be unwise to knowingly occupy a "closed in" or confined space where you are sure the gas is being produced

If you need help with repairs on your Honda Pilot, YourMechanic would be pleased to come to your home and service your car.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Stereo system wiring

Hi! If the reflector is broken it would be best to have a technician inspect it to see exactly which part is broken. Usually a broken tail light will have to be replaced but at times they can be repaired....

Q: My battery lost power and I recharged it. Now, every time I hit my breaks all of my lights blink for one minute.

Hi. This sounds like the battery terminals are either loose or going bad creating a bad connection with the battery. There also could be corrosion on the terminals causing a bad connection with battery. The battery supports may not be...

Q: Changed battery, now the engine "chugs" at idle and while accelerating

If you disconnected or connected the battery with the key on or any accessory activated then you may have damaged the computer of the car. Firstly, have the Check Engine Light scanned to see what code is stored in memory....

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.