Reported Jun 20, 1977471,535 vehicles affectedFORD MOTOR COMPANY
The defect
Seven-blade cooling fans installed on the involved vehicles may be subject to fatigue cracking of the blades due to stresses generated during normal vehicle operation.
The remedy
Dealer will replace seven blade fan with a fan of five blade design, without charge to owner.
Vehicle description: passenger vehicles equipped with 302, 351, or 400 cidengines and air conditioning.system: engine and engine cooling; fan.consequences of defect: blades may become fragmented and pieces could bepropelled in all directions, damaging other engine components. Nearby personscould be seriously injured if the hood IS open at the time of failure.note: vehicle should not be serviced with the hood open and the engine runninguntil the problem has been corrected.