LOUD RATTLING NOISE FROM ENGINE UPON STARTING THE VEHICLE; HAD CR-V TOWED TO LIA HONDA IN ENFIELD, CT; LIA SAID EITHER ENGINE FIRE OR MISFIRED SPARK PLUG - COULDN'T TELL FOR SURE, BUT THAT IT SHOULDN'T HAVE HAPPENED AND THAT I DID NOTHING TO CAUSE IT; MACHINE SHOP IS INVESTIGATING TO DETERMINE IF CYLINDER HEAD, WHICH WAS MELTED, CAN BE REPAIRED, OR IF REPLACEMENT IS NEEDED; CHECKING FOR ADDITIONAL ENGINE DAMAGE; INVESTIGATION BY LIA IS UNDERWAY - SO UNSURE HOW THIS WILL END. *TR