The EGR valve, or Exhaust Gas Recirculation valve, is a vacuum controlled valve which allows a specific amount of your exhaust back into the intake manifold. This exhaust mixes with the intake air and actually cools the combustion process.he EGR valve, or Exhaust Gas Recirculation valve, is a vacuum controlled valve which allows a specific amount of your exhaust back into the intake manifold. This exhaust mixes with the intake air and actually cools the combustion process.
Time Line. February 22, 1732 - George Washington is born at Popes Creek farm in Westmoreland County on the Northern Neck, the son of Augustine Washington and his second wife, Mary Ball Washington. By the Julian, or Old Style, calendar, in effect in England until 1752, Washington is born on February 11.ime Line. February 22, 1732 - George Washington is born at Popes Creek farm in Westmoreland County on the Northern Neck, the son of Augustine Washington and his second wife, Mary Ball Washington. By the Julian, or Old Style, calendar, in effect in England until 1752, Washington is born on February 11.
The 1st President of the United States George Washington was born in Pope's Creek, Virginia. The 3rd President of the United States Thomas Jefferson was born in Goochland County, Virginia. The 4th President of the United States James Madison was born in Port Conway, Virginia.