Does an upward-facing exhaust pipe have any impact during rainy weather?

[MacTalia]

An upward-facing exhaust pipe on a car does not significantly affect the vehicle during rainy weather. Here is some relevant information about exhaust pipes: Pressure reduction: It expels the exhaust gases produced by the engine, reducing pressure, which is an important factor in ensuring the continuous operation of a vehicle. Noise reduction: The entire exhaust pipe system includes two noise reduction mechanisms. The first is the exhaust manifold, which handles the gases expelled by the engine, and the second is the main muffler located at the end of the exhaust pipe. These two steps effectively reduce the noise of the exhaust gases to a reasonable level. Exhaust filtration: It helps minimize the pollution caused by exhaust gases in the air.

[AidenLee]

Having the exhaust pipe facing upwards might cause minor issues on rainy days, but there's no need to worry too much. I've thought about this while driving myself—most designs account for waterproofing, such as drainage holes or hot exhaust gases that quickly evaporate water. So, a small amount of rainwater dripping in isn’t a big deal, and normal driving is usually fine. However, during heavy rain or when parked with the exhaust pipe directly facing the rain, water can accumulate inside, potentially leading to rust in internal components over time, especially in areas like the muffler, which is particularly prone to damage. It’s advisable to park in a sheltered spot and check the drainage holes for blockages after driving through water to avoid prolonged submersion. Overall, daily use has minimal impact, but long-term neglect could increase repair costs.

[EvangelineRose]

I've driven many vehicles, including modified off-roaders, and upward-facing exhaust pipes are actually quite a common design, especially for water-fording situations. It's true that more rainwater drips in during precipitation, but the high exhaust temperature quickly evaporates the moisture, so stalling or major issues are unlikely. However, in areas with heavy rainfall or acid rain, accumulated water could corrode the pipe's interior walls, reducing lifespan - older vehicles require extra caution. Personally, I apply rust inhibitor before rainy seasons and avoid puddles when parking. Don't overthink this - most vehicles handle it just fine.

[DelAlexis]

Exhaust pipes facing downward have a higher risk of water intake during rainy weather, which can easily lead to rust and corrosion issues. There's no significant impact in the short term, but long-term water accumulation can damage components like mufflers or tailpipes. It's advisable not to leave the car exposed to rain for too long and to check if the drainage holes are clear.