Why does the starter turn after a frosty night, but the engine does not start
- January 9, 2023
- 0
Really cold weather turns the launch of a used car into an analogue of the real “roulette”: does it start or not? The AutoVzglyad portal talks about a
Really cold weather turns the launch of a used car into an analogue of the real “roulette”: does it start or not? The AutoVzglyad portal talks about a problem that sometimes baffles even experienced drivers.
To begin with, I will tell the true story that happened on the New Year holidays – 2023. Morning. Outside the window -23ºС. Admittedly with noticeable effort, but the engine of my station wagon started. At this time, a neighbor comes out onto the porch and asks to “light” her old “Korean”: it does not start, although there were no such problems the day before yesterday. The day before yesterday it was of course only -3ºС outside. Warmed up – went to resuscitate the iron veteran. They threw the wires, the girl turns the ignition key in the lock. You will hear the starter motor turning the engine. There were even a few “sneezes” into the cylinders. But that’s all. The engine will no longer start. A few more similar attempts did not lead to the desired result. A typical variant of the situation: “turns, but does not understand.” After that, the hostess of the car amused herself with the phrase: “well, then you have to drag the battery home to charge.”
Laughing, he explained that everything was fine with the battery in her car. It won’t start for some other reason, and “lighting up” won’t help here. Note that often in cars of Asian brands, including Korean ones (especially those earlier than 2015-2018), in frosts below -20ºС it is impossible to find the reason for the refusal to start. But as soon as the “dead” car is in a warm car service box, the engine starts without any problems. Such strange behavior is usually associated with certain “malfunctions” of the engine control unit.
In one case, he “doesn’t realize” that it’s too cold outside and gasoline needs to be added to the fuel mixture: after all, lean fuel doesn’t catch fire in the cold. According to another scenario of electronic “madness”, too much gasoline is injected into the cylinders. He fills the candles and it becomes possible to start only after they have somehow dried.
Electrical leaks in the ignition system – in wires, coils – may not affect starting in hot weather. But in severe frosts, every spark energy counts on candles. Bad spark – the engine “doesn’t catch”. High-quality diagnostics of such malfunctions require the right knowledge and equipment. But in general, it is possible to identify the source of problems without them. To do this, you need to ask a partner to start the car at night with the hood open. At the same time, if you see nice sparks somewhere under the hood, you should know that this is the leakage current. To eliminate it, you need to replace the problematic part. What sparks – without regrets in the trash!
In addition, the symptom “it started yesterday, but when it freezes, it turns, but does not hang” can also occur due to the fault of water accidentally entering the fuel line. For the implementation of “sabotage” there is a lot of it and you do not need it. Small pieces of ice can clog the inside of the fuel pump and it simply cannot pump fuel. One way or another, in order to “revive” the car in such a situation, it is enough to place it in a heated room. Or wait outside for warmth.
globallookpress.com’s photo
To begin with, I will tell the true story that happened on the New Year holidays – 2023. Morning. Outside the window -23ºС. Admittedly with noticeable effort, but the engine of my station wagon started. At this time, a neighbor comes out onto the porch and asks to “light” her old “Korean”: it does not start, although there were no such problems the day before yesterday. The day before yesterday it was of course only -3ºС outside. Warmed up – went to resuscitate the iron veteran. They threw the wires, the girl turns the ignition key in the lock. You will hear the starter motor turning the engine. There were even a few “sneezes” into the cylinders. But that’s all. The engine will no longer start. A few more similar attempts did not lead to the desired result. A typical variant of the situation: “turns, but does not understand.” After that, the hostess of the car cheered up with the phrase: “well, then you have to drag the battery home to charge.”
Laughing, he explained that everything was fine with the battery in her car. It won’t start for some other reason, and “lighting up” won’t help here. Note that often in cars of Asian brands, including Korean ones (especially those earlier than 2015-2018), in frosts below -20ºС it is impossible to find the reason for the refusal to start. But as soon as the “dead” car is in a warm car service box, the engine starts without any problems. Such strange behavior is usually associated with certain “malfunctions” of the engine control module.
In one case, he “doesn’t realize” that it’s too cold outside and gasoline needs to be added to the fuel mixture: after all, lean fuel doesn’t catch fire in the cold. According to another scenario of electronic “madness”, too much gasoline is injected into the cylinders. He fills the candles and it becomes possible to start only after they have somehow dried.
Electrical leaks in the ignition system – in wires, coils – may not affect starting in hot weather. But in severe frosts, every spark energy counts on candles. Bad spark – the engine “doesn’t catch”. High-quality diagnostics of such malfunctions require the right knowledge and equipment. But in general, it is possible to identify the source of problems without them. To do this, you need to ask a partner to start the car at night with the hood open. At the same time, if you see nice sparks somewhere under the hood, you should know that this is the leakage current. To eliminate it, you need to replace the problematic part. What sparks – without regrets in the trash!
In addition, the symptom “it started yesterday, but when it freezes, it turns, but does not hang” can also occur due to the fault of water accidentally entering the fuel line. For the implementation of “sabotage” there is a lot of it and you do not need it. Small pieces of ice can clog the inside of the fuel pump and it simply cannot pump fuel. One way or another, in order to “revive” the car in such a situation, it is enough to place it in a heated room. Or wait outside for warmth.
Source: Avto Vzglyad
Donald Salinas is an experienced automobile journalist and writer for Div Bracket. He brings his readers the latest news and developments from the world of automobiles, offering a unique and knowledgeable perspective on the latest trends and innovations in the automotive industry.
