Responsible for generating the spark that will ignite the air/fuel mixture, the spark plug is essential for engine operation. The component, however, works in severe conditions and is susceptible to natural wear, which is not always noticeable to the driver. But, after all, how do you know if the candles need to be overhauled? NGK, a brand specialist in ignition systems, points out three signs that the component needs to be overhauled. Check out!
Match failures Failures or difficulties in starting are clear indications of excessive wear on the spark plugs. According to NGK's Technical Assistance consultant, Hiromori Mori, this happens because the sparks (sparks) generated between the spark plug electrodes cause wear on them, causing the components to round off. “The consequence of this is the loss of the sharp edges of the electrodes and an increase in the gap between them, which makes it necessary to increase the voltage for the spark to occur. When this occurs, exceeding the capacity of the coil, the vehicle starts to have difficulties at the time of departure”.
loss of performance Excessive gap between the electrodes, caused by their wear, can also lead to a loss of vehicle power. “Ignition failure causes a reduction in the engine's performance, in addition to increasing the levels of pollutant gas emissions from the vehicle's exhaust”, warns Hiromori Mori.
Increased fuel consumption Worn spark plugs cause part of the air/fuel mixture to not burn properly, increasing the consumption of gasoline or ethanol. “Drivers who notice high fuel consumption should look for a trusted mechanic to inspect the condition of the spark plugs”, guides the NGK specialist. Periodic maintenance of the spark plugs every 10 thousand kilometers, annually or as directed by the automaker is essential to ensure the proper functioning of the vehicle. Failure in the component, in addition to harming the engine and several other parts, also compromises the quality of the air, as spark plugs in poor condition increase emissions of polluting gases. “For this reason, it is important to highlight that, whenever the driver carries out the inspection of the spark plug, he must also check the situation of cables and coils, to ensure that the entire system is working properly”, concludes Hiromori Mori.
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