what are the drawbacks of having small holes on your car exhaust?

Question

mechanic tells me that there are holes in the exhaust due to which carbon monoxide could enter into the car through the vents. hows that possible if the exhaust is outside the car?

Answer 1

before the catalytic,Yes bad thing.(the poison fumes,may kill You)

after the catalytic,no only the noise.( Your neighbor,may kill You)

Answer 2

Small holes are usually an indication that the pipe has corroded thin enough that it's soon going to fall apart altogether. When you drive, the air flows around your car but there are qalways low pressure areas where the slipstream separates from the car. If exhaust can get into those low pressure areas, it will be drawn into the car. Catalytic converters take care of the unburnt hydrocarbons and carbon monoxide--ideally--but do you really want to stake your life on it? Children have been killed riding in the capped over backs of pickup trucks because the vacuum behind the vehicle sucked fumes into that poorly ventilated area where they were riding. You can always justify these things, but is it worth the risk for the one time that something goes wrong?

P.S.--Carbon monoxide doesn't become carbon dioxide by being diluted with air. It burns with a violet colored flame in air to become carbon dioxide, if you have enough to burn. Otherwise, it binds to the hemoglobin in your blood which is supposed to carry carbon dioxide out of your body and oxygen in. Once bound by the more reactive monoxide, the hemoglobin carries nothing. It's cumulative to the point where you suffocate because the blood can't carry the gases it's supposed to.

Answer 3

If the car is stationary then the fumes quickly accumulate and are drawn in through the ventilator. The space above the exhaust is usually tucked up and is not so affected by the air passing under the car.

The effect of carbon monoxide is accumulative and you wont know it killing you. Gas escaping through holes is not passing through the converter either.....killing the rest of us.

Carbon Monoxide becomes Carbon Dioxide when sufficently diluted in air.

Answer 4

when you drive your car it creates a vacuum under the car and exhaust can enter the inside of the car through and air leaks in the cabin area...depending on the location of the leaks it could cause other problems with the engine...recommend fixing the problems ASAP...