1991 Ford F-150 Fuel System, Gasoline:storage:auxillary Tank Problems
NHTSA component category: FUEL SYSTEM, GASOLINE:STORAGE:AUXILLARY TANK · data through 07/14/2026
Source: U.S. NHTSA complaint data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.
How fuel system, gasoline:storage:auxillary tank ranks on this vehicle
Share of the 304 complaints citing each category; one complaint can cite several. Full breakdown on the 1991 Ford F-150 overview page.
What owners report
“THE FUEL PUMP ASSEMBLY CAUSES A PORTION OF THE UNUSED FROM ONE TANK TO THE OTHER TANK. EVERYTIME ONE TANK GETS FULLED UP THE OTHER…”NHTSA complaint 828574 — filed 10/05/1998
“FUEL SPILLAGE PROBLEM; THE FUEL WILL RUN FROM ONE TANK TO ANOTHER AND DIP OUT OF THE FUELING SPOUT. EVEN WHEN USING ONE TANK THE…”NHTSA complaint 822172 — filed 04/27/1998
“WHILE DRIVING THE FUEL IN THE REAR TANK WILL TRANSFER OVER TO FRONT TANK WHICH CAUSES THE FUEL TO LEAK WHEN THE VEHICLE IS IN…”NHTSA complaint 810383 — filed 03/25/1997
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Fuel System, Gasoline:storage:auxillary Tank complaints by year filed
Frequently asked questions
Does the 1991 Ford F-150 have fuel system, gasoline:storage:auxillary tank problems?
Fuel System, Gasoline:storage:auxillary Tank is the #4 most-reported problem area on the 1991 Ford F-150: 21 of 304 complaints on file (6.9%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 1991 Ford F-150 have in total?
304 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 12 involved a crash, 41 involved a fire, 8 reported injuries, and none reported deaths.
What does NHTSA's fuel system, gasoline:storage:auxillary tank category include?
NHTSA assigns each complaint to standard component categories; this page reports the FUEL SYSTEM, GASOLINE:STORAGE:AUXILLARY TANK category exactly as NHTSA defines and records it.
