I have had my car battery stop working. Everything seemed fine then my car just wouldn’t start. We all may be faced with a situation like this, where we are left stranded somewhere. It wouldn’t be fun if I was stranded at night with just my cell phones.
To avoid this I can check my car battery. I can first check the cables and their connection to the terminals. You can check for leakage or any mineral build up around the cables and terminals. Clean the terminal with a battery cleaning brush if needed and you can always apply dielectric grease to help them stay corrosion free.
Using a multimeter with the engine off, you can check if the battery is charged fully (about 12.4 to 12.7 volts). When the car is on you can carefully check the voltage. It should be around 13.7 to 14.7 volts.
If the battery is low, it might be the alternator. To check this you can start the engine and turn on your lights. If the lights are dim or brighten as the engine is revved, then the alternator probably is the issue.
4. Change Your Spark Plugs
If you notice that your engine is not working efficiently, then the reason could be the spark plugs. If not checked, they could wear out and be covered in a buildup. Your car manual should let you know when to replace them.
If your car is not performing as well as it usually does, you might want to check the spark plugs and spark plug wires if they are old. If you find they are in bad condition, replace them for better performance. Spark plugs usually last for 30,000+ miles; see the owner’s manual for more information.