What Causes the Exhaust Pipe to Make Abnormal Noises After Driving Through Water?

[Aliyah]

Here are the specific reasons for abnormal noises from the exhaust pipe after driving through water: 1. Damaged muffler or exhaust pipe: Symptoms include hearing abnormal noises from the exhaust pipe when stepping on the accelerator pedal, with no abnormal driving conditions but increased fuel consumption. Sometimes, noises may also come from the front section. 2. Aged heat shield: Symptoms include abnormal noises from under the engine during low-speed driving or when accelerating, especially in colder weather. The vehicle needs to be lifted to check if there is a heat shield between the exhaust pipe and the ground, which may be caused by its aging. 3. Damaged exhaust pipe: Symptoms include abnormal noises when turning or moving forward, often originating from the front drive shaft joint that has been damaged.