Why does the car fail to start after being parked for a long time?
2 Answers
If the car fails to start after being parked for a long time, it could be due to the battery being drained from prolonged inactivity. Here are some precautions to take when leaving a car unused for an extended period: 1. Disconnect the battery to prevent power loss: After long-term parking, a previously normal vehicle may struggle to start. The battery charges automatically during regular driving, but it still discharges when the vehicle is idle. However, the discharge rate varies depending on the battery's model, usage time, and type, so it's essential to check your specific battery condition. 2. Minimize fuel in the tank: Gasoline quality has two key indicators - actual gum content and induction period, which represent fuel stability. Gasoline that's stored too long will oxidize severely, forming gum. This gum can cause valves to stick and not close properly. At high temperatures, it decomposes into carbon deposits that accumulate on cylinder walls, piston tops, and cylinder heads, leading to poor engine performance, increased knocking, and accelerated wear.
The car won't start after being left unused for a long time, mainly because the battery is dead. I've encountered this situation before—leaving the car untouched for a few weeks causes the battery to slowly drain, as electrical components like the alarm still quietly consume power. Another common issue is corroded or loose battery terminals, leading to poor contact and preventing charging. Additionally, if the car is parked in a damp and cold place, moisture can accelerate battery corrosion, making it harder to start. If the ambient temperature is too low, the battery's efficiency drops, making ignition difficult. In some cars, if gasoline is mixed with water or has deteriorated, it may not inject properly during startup. To address this, first try jump-starting the car using a jump starter or borrowing a friend's car battery. If that doesn’t work, check if the battery is old and needs replacement. For prevention, it’s recommended to start the car and drive it around weekly, or invest in a battery charger to keep it topped up. Safety should also not be overlooked, as breaking down midway can be quite dangerous. I find this quite annoying, but regular maintenance helps.
