It is this gasket in the pressure cap that makes a tight seal in the radiator filler opening. When this gasket does not make a tight seal, the car operates without a pressurized cooling system.

Once upon a time, building an engine that didn't leak required serious attention to detail, teeth gnashing, and plenty of luck! Having a properly sealed engine was a religious experience and, judging ...

Do-it-yourself maintenance is an endless list of learning the basics. From lifting up and supporting a car to general engine maintenance, there’s always a first attempt that builds up competency and ...