What causes the dashboard to keep flashing when the CRV fails to start?
2 Answers
When the dashboard fails to start during ignition, it may be due to damaged spark plugs in the car. Here are the reasons for spark plug damage: 1. Long-term carbon buildup without cleaning: During use, the electrodes and skirt insulator of the spark plug will accumulate normal carbon deposits. If these deposits are not cleaned for a long time, they will accumulate more and more, eventually leading to electrode leakage or even failure to spark. 2. Prolonged usage: There are many types of spark plugs, but each has its own economic lifespan. Continuing to use them beyond this lifespan will negatively affect the engine's performance and fuel efficiency. Research shows that as spark plugs age, the central electrode's end face tends to become rounded, while the side electrode becomes concave. This shape increases the electrode gap, making discharge difficult and affecting the engine's normal operation. 3. Flame cleaning: Using fire to remove carbon deposits and oil stains from the spark plug electrodes and skirt may seem effective but is actually very harmful. This is because the temperature is difficult to control during flame cleaning, which can easily crack the skirt insulator, causing spark plug leakage. Moreover, the fine cracks produced after flame cleaning are often hard to detect, making troubleshooting much more difficult.
I've been driving for many years, and the most common cause of this situation is unstable battery power supply. Flashing dashboard lights are mostly due to low or fluctuating circuit voltage. Specifically, if your CRV won't start and the lights are flashing, it could be because the battery is old and can't hold a charge, or because the electrode terminals are oxidized or loose, causing poor contact. Try tightening the connections with a screwdriver. It could also be that the alternator is faulty and not charging, draining the battery. Another possibility is that a relay in the ignition system is stuck, causing the lights to flash continuously when you try to start the car repeatedly. For safety, don't force multiple ignition attempts. Instead, use a multimeter to check the voltage. If it's below 12 volts, jump-start the car and drive directly to a repair shop for a full inspection. For regular maintenance, test the battery health every six months and avoid leaving the car unused for too long. This is something you can't afford to neglect.
