![]() ![]() Removing the dirt build-up will allow you to accurately read your plug’s gap size. If you have old spark plugs, clean any dirt you see around the contact points using a wire brush. You could also visit the nearest auto parts store and ask them to help you locate this information. So, get your car’s owner’s manual and check for the recommended gap size. Step 2: Check your vehicle’s recommended gapĮach vehicle has specific measurements for the spark plug gap. However, the feeler gauge is the most versatile and effective tool. These include coin-style, blade-style feeler gauge, ramp-style gauge, and wire loop gauge. There are many tools for measuring the spark plug gap. Below are steps to determine if your car’s spark plug is too small. The best thing would be to measure the gap and compare it to your car’s spark plug gap specifications. Read Also : How Long Can You Drive With Bad Spark Plugs : The Effects Of Spark Plug How Do I Tell My Spark Plug Gap Is Too Small? This happens especially when the engine is running at idle. Sometimes, your car’s engine may sound rough when the plugs fire at low voltage due to a tiny gap. In other words, your car may feel less responsive. Slow accelerationĭue to loss of power from weak sparks, your vehicle may experience slow acceleration. Without the proper spark for ignition, you may have trouble starting your car. Too small spark plug gaps lead to loss of engine power. This happens because the sparks are not powerful enough to ignite the air/fuel mixture. When the spark plug gap is too small, some engine cylinders may not produce power, causing engine misfires. As a result, you may experience issues like: Engine misfiring So, the engine cannot produce maximum power when the spark plugs fire weak sparks at low voltage. Typically, spark plugs need a voltage of between 12,000 and 25,000 volts or more to properly fire. This makes it impossible for the plugs to generate intense sparks capable of igniting the air-fuel mixture. This is because when the spark plug gap is too small, the plug will fire at a lower voltage. Your vehicle’s engine performance reduces. What Happens If Spark Plug Gap Is Too Small? Now, how can you tell if your spark plug gap is way too small? In this article, we will discuss everything there is to know about spark plug gaps being smaller than the recommended size. You may also have difficulty starting your vehicle and all this happens because the smaller gap causes the plug to fire at low voltage, delivering a weak spark. In addition, the engine may experience a rough idle. So what happens if the spark plug gap is too small? This may lead to various engine issues like misfiring if it is smaller than the spec size. Over time, this gap may become too wide as the electrode wears or too small due to a damaged piston. Every vehicle has a unique spark plug gap specification, which is integral to proper engine performance. ![]()
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