TL*THE CONTACT OWNS A 2003 TOYOTA CAMRY. WHILE THE CONTACT WAS DRIVING APPROXIMATELY 25 MPH WITH THE AIR CONDITIONER ON SHE SMELLED A BURNING ODOR THROUGHOUT THE VEHICLE. THE FAILURE OCCURRED FIVE MINUTES AFTER THE VEHICLE WAS TURNED ON. THERE WERE NO WARNING LIGHTS ON THE INSTRUMENT PANEL PRIOR TO OR WHEN THE FAILURE OCCURRED. THE CONTACT ADDED WATER TO THE COOLANT RESERVOIR. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER FOR DIAGNOSTIC TESTING WHERE THE TECHNICIAN STATED THAT THE ENGINE OVERHEATED AND CAUSED THE HEAD GASKET TO MALFUNCTION. THROUGH FURTHER INSPECTION IT WAS DETERMINED THAT THE FAILURE WAS DUE TO DAMAGED BOLTS THAT WERE CONNECTED BETWEEN THE HEAD GASKET AND THE ENGINE BLOCK. THE TECHNICIAN CONFIRMED THAT THE ENGINE NEEDED TO BE REPLACED AT AN ESTIMATED COST OF $4,000 MINUS THE COST OF LABOR. THE VEHICLE HAD NOT BEEN REPAIRED AT THIS TIME. THE FAILURE MILEAGE WAS APPROXIMATELY 116,503. UPDATED 11/03/10. *LJ