I am concerned because my 3-year-old son has started to stutter. Q: I am concerned because my 3-year-old son, who until recently had great language skills and talked really clearly, has started to stutter.
Intermitant motors should be replaced. From experience, relays and transformers rarely go out. It is usually the motor that burns out and it usually does so quickly when at life's end. Take the time to check all of your wire connections-hours can be spent diagnosing a vacuum only to find out it was a bad connection.ntermitant motors should be replaced. From experience, relays and transformers rarely go out. It is usually the motor that burns out and it usually does so quickly when at life's end. Take the time to check all of your wire connections-hours can be spent diagnosing a vacuum only to find out it was a bad connection.
Many years, if not indefinitely. The problem is that gasoline is never stored in that kind of container, so it does go bad. Various compounds react with oxygen, or get digested by microbes, or absorb water from the air, or whatever. Lots of things can go wrong and additives can be used up just by sitting there.