On your 1992 Ford Crown vic when I reach about 30mph you feel and sometimes here a rattling noise coming from the rear What could it be?
WELL AS FAR AS I KNOW I WAS TOLD THAT IT WAS THE HEATING PANEL
OF HEATING SOMETHING OF THE MUFFLER. YOU NEED TO TAKE IT TO A SHOP
AND HAVE THEM WELD IT BACK TOGETHER. ITS LIKE 5 OR 10 DOLLARS AND
ONLY TAKES A SECOND ..................... Also this may be caused
by the stabilizer bar for the muffler. From what I was told at the
shop this is a special part that needs to be ordered from Ford.