What Happens If a Plastic Bag Blocks the Exhaust Pipe?

[Beatrix]

The consequences of a plastic bag blocking the exhaust pipe are as follows: 1. Insufficient Power: Intake, compression, power, and exhaust are the four strokes of an engine's working cycle. The exhaust pipe's task is naturally to expel exhaust gases, and for the exhaust to be smoothly discharged, it must pass through the exhaust manifold at the engine section, the catalytic converter in the middle section, and finally exit through the tailpipe. In principle, inserting a plastic bag will affect the exhaust process, which in turn will inevitably impact the intake phase. When the intake phase is affected, it leads to insufficient power. To maintain power, the vehicle will automatically increase fuel injection, but the extra fuel injected cannot be completely burned due to insufficient air intake, thus entering a vicious cycle. 2. Abnormal Vehicle Operation: The exhaust temperature is very high. If the exhaust is blocked, the high temperature can damage the piping, leading to other malfunctions. Therefore, when a plastic bag blocks the exhaust pipe, although it won't cause an explosion, it can easily result in abnormal vehicle operation. If the blockage is severe, it can directly prevent the engine from starting or cause it to stall, which can have serious consequences.