Spark plugs are an integral part of your engine, but they need to be replaced every so often. We'll tell you how to find out ...

Some have clamps that connect to the posts of another battery, while others have a 12-volt plug that can be plugged into another car’s power socket. Those that use the OBD II port typically run ...

After waiting, go ahead and try to start the car with the previously dead battery. If it starts, let it idle for at least 20 minutes if you don’t plan on immediately driving.