1978 Pontiac Bonneville Recalls

1. Recall Description

   THE HUB PORTION OF THE FAN BLADE ASSEMBLY COULD CRACK DUE TO HIGH STRESS LEVELS GENERATED DURING ENGINE OPERATING CONDITIONS. EVENTUALLY, THE BLADE COULD BREAK APART AT THE HUB AND BLADE PIECES COULD BE PROPELLED INTO THE ENGINE. IF THE HOOD IS OPEN WHILE THE ENGINE IS RUNNING, THE FRAGMENTS WOULD BE FREE TO FLY FROM THE VEHICLE.

   Possible Effects

   Action

   DEALER WILL REPLACE THE FAN BLADE ASSEMBLY WITHOUT CHARGE TO OWNER.

   Notes

   VEHICLE DESCRIPTION: PASSENGER VEHICLES.SYSTEM: ENGINE COOLING; FAN BLADE ASSEMBLY.CONSEQUENCES OF DEFECT: FAN FAILURE COULD RESULT IN DAMAGE TO COMPONENTS IN THEENGINE AREA, OR PERSONAL INJURY TO BYSTANDERS IF THE HOOD IS OPEN AT THE TIME.NOTE: THE VEHICLE SHOULD NOT BE SERVICED WITH THE HOOD OPEN AND THE ENGINERUNNING UNTIL THE DEFECT IS CORRECTED.

   Recall Manufacture Dates

   1977-08-01 - 1978-01-01

   Vehicles Affected

   333619

2. Recall Description

   THE REAR WHEEL MOUNTING BOLTS ON THE AFFECTED VEHICLES, ARE BRITTLE AND THEREFORE MAY FRACTURE. THIS BRITTLENESS IS DUE TO IMPROPER HEAT TREATMENT DURING MANUFACTURE. IF THE BOLTS BREAK, THE TIRE AND WHEEL ASSEMBLY MAY SEPARATE FROM THE VEHICLE.

   Possible Effects

   Action

   DEALER WILL INSPECT AND, IF NECESSARY, WILL REPLACE DEFECTIVE BOLTS ON ALL AXLES AND THE TEN REAR AXLE WHEEL MOUNTING BOLTS, FREE OF CHARGE.

   Notes

   VEHICLE DESCRIPTION: PASSENGER VEHICLES.SYSTEM: SUSPENSION; REAR WHEEL MOUNTING BOLTS.CONSEQUENCES OF DEFECT: IF SEPARATION OCCURS UNDER VEHICLE OPERATION, LOSS OFVEHICLE CONTROL WITHOUT PRIOR WARNING AND AN ACCIDENT COULD RESULT.

   Recall Manufacture Dates

   -

   Vehicles Affected

   4504