I CAME HOME AND PULLED INTO OUR DRIVEWAY. I PUT OUR DODGE DURANGO 2016 IN PARK POSITION AND I THEN OPENED OUR GARAGE DOOR HALFWAY OPEN. I WALKED UNDER THE DOOR AND WENT INTO THE HOUSE TO GET MY WALLET OUT OF MY PANTS WHICH I WAS WEARING EARLIER. IT WAS A COUPLE MINUTES LATER WHEN MY WIFE AND I HEARD A BIG BANG. WE BOTH RAN OUT TO THE GARAGE AND SAW THE 2016 DODGE DURANGO SUV HALFWAY INTO THE GARAGE. THE GARAGE DOOR WAS STOPPING THE SUV FROM GAINING SPEED AND COMING INTO THE HOUSE. IT DAMAGE OUR GARAGE DOOR SIGNIFICANTLY AND PUT SCRATCHES ON OUR SUV HOOD AND WINDSHIELD. LUCKILY THE GARAGE DOOR STOPPED IT OTHERWISE IT WOULD'VE BROKEN DOWN THE WALL AND COULD'VE RAN OVER ONE OF OUR CHILDREN OR US OR DONE SO MUCH DAMAGE. MY GARAGE DOOR IS DAMAGED IN OUR SUV IS SCRATCHED UP AND FORTUNATELY IT'S NOT OUR LIFE THAT WAS HURT. AS FAR AS THE ENGINE IS CONCERNED WE HEAR A KNOCKING WHEN WE PRESS THE GAS AT FIRST. BETWEEN FIRST AND SECOND GEAR AS WELL.. SOUNDS LIKE A LIFTER OR SIMILAR IS GOING OR ARE BAD