What are the reasons why a car won't start after rain?
2 Answers
Reasons why a car won't start after rain are as follows: 1. Wire short circuit: Since most of the vehicle's wiring and pipelines are concentrated in the engine compartment, driving through water can cause water to splash onto the internal wiring and pipelines. Over time, this can lead to wire short circuits and obstructed fuel lines, resulting in the car failing to start. 2. Flood-damaged car: If the vehicle has been submerged in water, the situation becomes even more challenging. Even if the engine cover is opened and dried, there is still a certain risk when attempting to start the car. Solutions are as follows: 1. Evaporate moisture: On sunny days, place the car in a sunny spot to allow the moisture to evaporate. 2. Check the spark plugs: Inspect whether the spark plugs are leaking electricity and whether the spark plug covers are cracked or loose.
I'm quite familiar with this issue, as cars failing to start in rainy weather is a common occurrence, primarily due to moisture affecting the electrical system. For instance, rain can cause the spark plugs or ignition coils to get damp, preventing the gasoline from igniting; poor contact in wires and connectors, or corrosion, can block the current flow; if water enters the alternator or fuse box, the fuse may blow as a protective measure. It's advisable not to rush to start the car after rain—instead, pop the hood to check for any accumulated water or moisture marks. If dampness is found, wait for about half an hour to let it dry. Additionally, regular cleaning of battery terminals to prevent corrosion and maintaining good vehicle sealing can reduce such issues. However, if problems are detected, it's safer to consult a professional repair shop.
