THIS IS NOT A SAFETY RECALL IN ACCORDANCE WITH THE SAFETY ACT. HOWEVER, IT IS DEEMED A SAFETY IMPROVEMENT CAMPAIGN BY THE AGENCY. VEHICLE DESCRIPTION: 1990-1993 FORD F-SERIES VEHICLES EQUIPPED WITH DUAL FUEL TANKS AND 4.9, 5.0,5.8, OR 7.5 LITER GASOLINE FUELED ENGINES. SOME VEHICLES CAN EXPERIENCE A CROSS TANK FUEL FLOW CONDITION DUE TO A DAMAGED CHECK VALVE IN THE FUEL PUMP/SENDER ASSEMBLY. FUEL MAY BE SUPPLIED FROM ONE TANK AND SOME OR ALL OF THE UNUSED FUEL MAY BE RETURNED TO THE OTHER TANK.

Consequence: SHOULD THIS OCCUR, THE CAPACITY OF THE RECEIVING TANK MAY BE EXCEEDED AND FUEL MAY OVERFLOW FROM THE FILLER CAP.

Remedy: FORD IS EXTENDING THE WARRANTY FOR POTENTIAL FUEL CROSS-FLOW TO 12 YEARS OF SERVICE OR 150,000 MILES FROM THE VEHICLE'S WARRANTY START DATE, WHICHEVER OCCURS FIRST. THIS COVER WILL AUTOMATICALLY TRANSFER TO SUBSEQUENT OWNERS AT NO CHARGE. IF A VEHICLE ALREADY HAS MORE THAN 150,000 MILES, THIS OVERAGE WILL LAST UNTIL DECEMBER 31, 2001. IF THE VEHICLE IS EXPERIENCING A FUEL CROSS-FLOW CONDITION, DEALERS WILL REPAIR THE CONDITION FREE OF CHARGE.

NHTSA campaign 01I008000

THE IGNITION SWITCH COULD EXPERIENCE AN INTERNAL SHORT CIRCUIT.

Consequence: THIS CONDITION COULD CAUSE OVERHEATING, SMOKE, AND POSSIBLY FIRE IN THE STEERING COLUMN AREA OF THE VEHICLE.

Remedy: DEALERS WILL REPLACE THE IGNITION SWITCH.

NHTSA campaign 96V071000

A MALFUNCTIONING CHECK VALVE WITHIN THE FUEL PUMP ASSEMBLY CAUSES A PORTION OF THE UNUSED FUEL FROM ONE TANK TO BE RETURNED TO THE SECOND TANK. WHEN THIS OCCURS, THE CAPACITY OF THE SECOND TANK CAN BE EXCEEDED, CAUSING FUEL SPILLAGE.

Consequence: SPILLED FUEL CAN RESULT IN A FIRE WHEN EXPOSED TO ASOURCE OF IGNITION.

Remedy: REPLACEMENT OF THE FUEL PRESSURE REGULATOR AND INSTALLATION OF REDUNDANT CHECK VALVES.

NHTSA campaign 93V125000

UNDER CERTAIN CONDITIONS, THE SNAP RING THAT LOCATES THE PARK GEAR ON THE OUTPUT SHAFT OF THE TRANSMISSION MAY FRACTURE.

Consequence: WHEN THE GEAR IS PLACED IN PARK, THE PARK GEAR WOULD NOTENGAGE, ALLOWING THE TRUCK TO ROLL FREELY IF THE PARKING BRAKE IS NOT PROPERLYSET. THIS COULD RESULT IN AN ACCIDENT.

Remedy: INSTALL IMPROVED SNAP RING AND REVISED TRANSMISSION EXTENSION HOUSING.

NHTSA campaign 90V101000

INCORRECTLY INSTALLED FUEL LINE CONNECTORS HAVE FUEL SUPPLY AND RETURN LINES CROSSED.

Consequence: FUEL COULD BE TRANSFERRED FROM ONE TANK TO THE OTHER,POSSIBLY RESULTING IN FUEL OVERFLOW AND SPILLAGE, IN PRESENCE OF AN IGNITIONSOURCE, A FIRE COULD OCCUR.

Remedy: REPLACE FUEL LINE ASSEMBLY.

NHTSA campaign 89V141000