How To Tell If Your Car Has Bad Spark Plugs

Do you have a suspicion that your vehicle's spark plugs need to be replaced? If so, you'll want to know what warning signs to look out for. Engine Light An easy way to tell if you have bad spark plugs is if the engine light on your dashboard turns on. This light has a code associated with it, and a mechanic can plug a computer into your vehicle to read the code that has triggered the light.