San Jose Auto Repair

Spark plugs are small, but they play a big role in your vehicle. Every time you turn the key, the plugs create an electric arc that ignites the fuel mix and gets the engine running. Normal wear and tear weakens the spark and affects performance. If your vehicle is displaying any of these warning signs, it might be time to replace your spark plugs.   1. Misfiring Engine Have you noticed that your engine seems to hesitate or sputter when you're on the road? This often means that the spark plugs are going bad; the missing spark interrupts the combustion process.   2. Rough Idling Failing spark plugs are often most noticeable when you're idling. The vehicle might sound rougher than usual. In some cases, your car will start to shake or vibrate. This usually means that the spark plugs aren't providing consistent fuel ignition.   3. Sluggish Acceleration Each time you step on the gas, your engine responds b ... read more