Here's the text of a Ford recall for this condition. I realize now that it may not apply to your truck since the recall was for early 90's trucks but then again if you say your front fuel pump is bad why not replace it and see what happens?
NHTSA Campaign Number: 01I008000
Manufacturer Campaign Number: Make: FORD
Model: F250
Year: 1990
Component:
FUEL SYSTEM, GASOLINE
Manufacturers Involved: FORD MOTOR COMPANY
Begin Date Of Manufacturing: 19890722
End Date Of Manufacturing: 19930824
Recall Type: I
Potential Number Of Units Affected: 1556221
Date Owner Notified By Manufacturer: 20010709
Recall Initiator: ODI
Manufacturer Responsible For Recall: FORD MOTOR COMPANY
Date Report Received By ODI: 20010719
Date Added To File: 20010719
Regulation Part Number: Federal Motor Vehicle Safety Standard Number: Defect Summary:
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 Summary:
SHOULD THIS OCCUR, THE CAPACITY OF THE RECEIVING TANK MAY BE EXCEEDED AND FUEL MAY OVERFLOW FROM THE FILLER CAP.
Corrective Action:
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.
Today
Not hard, just a hassle...
