AFTER HEAD GASKET REPL. IT RACED, JERKED, CUT-OUT, AND SHOOK. DEALER "RETORQUED" MOUNTS. NEXT DAY, PUT IN REVERSE TO BACK OUT OF PARKING SPACE, ENGINE RACED, CLUNKED, AND ACCELLERATED, IN REVERSE, TO 45 MPH PLOWING CAR THROUGH BRICK WALL IN RESIDENCE TOTALLING CAR, MAJOR STRUCTURAL DAMAGE TO HOUSE, ONE INJURY TO DRIVER.