Defect summary
SOME OF THE FLEXIBLE FIVE-BLADE ENGINE COOLING FANS MAY BE SUBJECT TO HIGH BLADE STRESSES THAT CAN RESULT FROM RESONANT VIBRATION INPUTS OCCURRING DURING NORMAL VEHICLE OPERATION. THIS CAN LEAD TO FATIGUE CRACKING OF THE BLADES. PORTIONS OF THE BLADE MAY SEPARATE FROM THE FAN ASSEMBLY WITHOUT PRIOR WARNING.
Remedy
DEALER WILL REPLACE FAN WITH AN IMPROVED FIVE-BLADED VERSION WITHOUT CHARGE TO OWNER.
Notes
VEHICLE DESCRIPTION: PASSENGER VEHICLES EQUIPPED WITH 351 CID ENGINES AND AIRCONDITIONING.SYSTEM: ENGINE COOLING; FAN.CONSEQUENCES OF DEFECT: BLADE FRAGMENTS PROPELLED FROM A ROTATING FAN MAY CAUSEDAMAGE TO UNDERHOOD COMPONENTS AND PERSONAL INJURY TO BYSTANDERS IF THE HOOD ISOPEN.
Source: NHTSA ODI recalls file, campaign 80V144000. Text as published by NHTSA.