NHTSA (USA)Critical
1991 FORD F-350NHTSA Campaign #94V040000
The official notice
Defect
THE STEEL FUEL RETURN TUBES THAT CONNECT THE FRAME FUEL RETURN LINES WITH THE ENGINE FUEL RAIL CAN CONTACT THE PINCH WELD FLANGE CONNECTING THE DASH PANEL TO THE FLOOR PAN. CONTINUED CONTACT LEADS TO ABRASION OF THE STEEL FUEL RETURN TUBE AND EVENTUALLY RESULTS IN A FUEL LEAK.
Safety Risk
ABRASION OF THE STEEL TUBE WALL THAT EVENTUALLY CAUSES A FUEL LEAK MAY RESULT IN A FIRE, IF A SOURCE OF IGNITION IS PRESENT.
Remedy
FORD DEALERS WILL REPLACE THE FUEL RETURN TUBES WITH FLEXIBLE STAINLESS STEEL BRAIDED/TEFLON TUBES. DEALERS WILL ALSO INSPECT THE FUEL SUPPLY TUBES.
Updated June 10, 2026