Can You Start the Engine If the Exhaust Pipe Gets Waterlogged?

[DiOmar]

If the exhaust pipe gets waterlogged, you should not attempt to start the engine. It is crucial to drain the water as soon as possible to prevent impurities from clogging the catalytic converter or damaging the oxygen sensor, which could lead to severe engine damage. If the exhaust pipe is waterlogged and the engine stalls, do not force-start it. Instead, call for roadside assistance immediately and wait for help. There are two ways to address a waterlogged exhaust pipe: 1. If the waterlogging is minor, you can inspect the electronic systems yourself and remove any accumulated water beneath the vehicle's chassis. Then, remove the spark plugs to drain some water from the engine before reinstalling them. This will allow the engine to start without stalling. 2. If the vehicle has been severely waterlogged, professional towing services are required to transport the car to an auto repair shop. After a simple cleaning and drying process for the exhaust pipe, the engine can resume normal operation.