Winter begins only on June 20, but the drop in temperatures is already felt in some regions of Brazil. A common problem at this time of year is the difficulty of starting an ethanol-fueled car on the first attempts, especially on the coldest mornings. NGK specialists highlight the precautions that the driver must take to avoid delays when leaving the house and, about everything, worsening engine trouble. Excessively worn spark plugs or those with an outdated service life can impair vehicle performance and make it difficult to start after the engine has been off for long periods, like on nights with low temperatures, for example. Preventive maintenance is still the best option in these cases. Spark plugs in good condition ensure that the vehicle's ignition works, facilitating immediate engine start, especially on the coldest mornings. Even on current models equipped with systems that do not require the use of a gas tank to inject fuel in the cold start, the spark plug plays a key role in the success of engine starting on cold days. In this case, vehicles with worn spark plugs will also have difficulty starting on days with low temperatures. "For ethanol to change its physical state during burning and allow the engine to function, higher temperatures than those required for gasoline are needed, that evaporates quickly. on cold days, when the engine is fueled with ethanol, it is necessary that the spark plugs and ignition cables are in their ideal working condition, so that there is no difficulty in starting the vehicle", explains Hiromori Mori, NGK Technical Assistance technician. In addition to the annoyance with the difficulty in starting the game, insisting on starting the engine can cause the spark plugs to flood, causing a greater inconvenience to the driver. If it occurs, you must turn off the vehicle and wait for the fuel to completely evaporate. This time varies from car to car., it can take up to 30 minutes. In flex or ethanol models with gasoline reservoir (six pack), it is necessary to keep it supplied with new, good quality gasoline.. Segundo Hiromori, The ideal is to change the fuel in the system every 90 days, in a position of trust. The cold start system also deserves attention and must be operating/injecting and without leaks. In vehicles with flex engines, Attention is required in case of a total change in the fuel used.. If you were using a type of fuel (ethanol or gasoline) and chooses to supply with another, ideally, before leaving the car with the engine off for a long period, Drive at least 10 or 15 kilometers, for the engine control system to recognize the new fuel present in the tank and reprogram the operating strategy, even during the cold start.
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