Can Secondary Ignition After Vehicle Water Intrusion Be Detected?
2 Answers
Secondary ignition after vehicle water intrusion can be detected. Below are relevant details about vehicle water intrusion: 1. Impact of Vehicle Water Intrusion: Generally, if a vehicle stalls in water, there is a 50% chance of engine damage. However, if the engine is restarted after stalling, it will certainly be ruined. 2. Precautions: Whether driving or parked in residential areas, underground garages, or streets, owners must never restart the engine after it stalls due to water exposure. When encountering waterlogged roads, the first step is to slow down and assess the water level. If the water reaches two-thirds of the tire height, driving through it poses certain risks, and it is advisable not to force passage.
As a seasoned car repair veteran, I've seen too many water-damaged vehicles. A second ignition attempt will definitely be detected, as the onboard computer records every detail with timestamps and status data for each ignition. Starting the engine after water ingress triggers error codes, such as abnormal engine RPM or erratic pressure sensor readings, which are immediately visible when connected to a diagnostic tool. Mechanical parts also show signs, like water stains on piston heads or scratches on cylinder walls, indicating water entered the combustion chamber during the attempted start. This operation is highly risky and may lead to engine seizure, doubling the repair costs. Therefore, I advise owners to cut off the power and call for a tow truck immediately upon discovering water ingress, rather than gambling with luck. During routine inspections, I always remind them to be mindful of water levels when washing the car or driving in the rain, and to develop the good habit of turning off the engine in advance to avoid getting into such dangerous situations.
