What's the matter if the car engine doesn't respond?
2 Answers
There are several reasons why the car engine does not respond: 1. Decreased battery storage capacity. The batteries commonly used in cars are lead-acid starting-type valve-regulated batteries, which are sensitive to temperature, especially old and inferior batteries. The starting motors of large-displacement motorcycles are at the kilowatt level, and the instantaneous current at startup must be above 100 amperes, with huge power consumption. The voltage drop of batteries with poor performance is very serious. The transistors on the igniter cannot generate sufficient primary voltage to supply the ignition coil, and the spark plug's sparking ability is not strong, leading to difficulty in starting. Recommended measure: Try borrowing a car battery with a matching nominal voltage. 2. Poor or incorrect choice of engine oil. In winter, if the viscosity of the engine oil increases significantly, the internal resistance of the engine also increases. Japanese cars generally require the crankshaft to reach a speed of 200rpm to start. Moreover, the induced voltage of the trigger coil in contactless triggered engines does not meet the requirements, the igniter has no signal, and ignition is impossible. Recommended measure: Try mixing kerosene and engine oil in a 1:1 ratio, and use a tachometer to measure the speed. (Note: If it starts, do not let the speed exceed 2500rpm, and the time should not exceed 3 minutes).
That morning when I was about to leave for work, turning the key all the way resulted in no response from the car, not even the dashboard lights. Out of habit, I first checked the battery terminals and indeed found a thick layer of oxidation. After cleaning the contacts with sandpaper, it still wouldn't start. Using a multimeter, I measured the voltage to be only 9V, then remembered the old battery had been in use for five years and was long overdue for replacement. While installing the new battery, I also had the starter checked and found severely worn carbon brushes, which can also cause silent starting failures. I recommend having the mechanic test your battery's lifespan during every maintenance check. Batteries over three years old are most likely to fail in cold weather, and being stranded at critical moments can really cause trouble.
