1993 Ford F-150 fuel system problems

Defect

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.

Defect

VEHICLE DESCRIPTION: LIGHT DUTY TRUCKS AND CAB CHASSIS EQUIPPED WITH GASOLINE ENGINES AND DUAL FUEL TANKS. THE CARBON STEEL FUEL PRESSURE REGULATOR IN THE FUEL SYSTEM CAN WEAR OUT DURING THE LIFE OF THE VEHICLE. IF THE FUEL PRESSURE REGULATOR MALFUNCTIONS, IT CAN CAUSE HIGH FUEL SYSTEM PRESSURE, WHICH DAMAGES THE FUEL PUMP CHECK VALVE. THIS ALLOWS FUEL TO BE TRANSFERRED FROM ONE TANK TO THE OTHER, POSSIBLY OVERFILLING THE NON-OPERATING TANK, RESULTING IN FUEL OVERFLOW PAST THE FILLER CAP.

Consequence

FUEL LEAKAGE IN THE PRESENCE OF AN IGNITION SOURCE COULD RESULT IN A VEHICLE FIRE.

Remedy

DEALERS WILL HAVE A STAINLESS STEEL FUEL PRESSURE REGULATOR INSTALLED. OWNER NOTIFICATION BEGAN JULY 9, 2001. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT FORD AT 1-866-436-7332. (SEE PREVIOUS NHTSA RECALL 93V-125/FORD RECALL 93S68).

Defect

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.