ERRATIC FUEL GAUGE OPERATION - MIL ON --DTCS P040/P0463 OR INSTRUMENT CLUSTER MODULE DTC B1201--VEHICLES BUILT BEFORE 12/3/2007.
full bulletin at NHTSA ↗2006 Ford F-150 fuel system problems
severe 30 complaints filed with NHTSA · avg repair $1,200 · see fuel system across all vehicles →
Failure mileage
Complaints
30
Recalls
0
Avg fix
$1,200
1crash
2fires
2injuries
What stands out
Owners have filed 30 fuel system complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering fuel system on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Owners describe multiple serious fuel-system problems on the 2006 F-150. The plastic fuel tank cracks or ruptures at welded seams, spraying gasoline onto the ground with no impact damage needed. Fuel pump driver modules mounted above the spare tire corrode rapidly when salt and moisture get trapped between the aluminum housing and steel frame, shorting out the electronics and leaving trucks unable to start or stalling at any speed—a dangerous situation if it happens on the highway. One owner had this happen at 4 degrees and had to crawl under the truck to replace the part; another paid $496 in repairs and tow costs. Ford now sells an upgraded plastic-housed module with spacers, but there's no recall. Fuel injectors stick open and flood cylinders, causing hydrolock and thrown rods that require $8,000+ engine replacements at mileages as low as 28,000. The filler neck design causes the pump nozzle to shut off prematurely, backing fuel up and spraying owners at multiple gas stations. Water mysteriously appears in tanks after parking, entering through truck bed seams. Tank straps rust through despite minimal visible corrosion elsewhere. Two owners reported fires during normal driving. Stalling occurs unpredictably at any speed, and some trucks won't restart. One owner's accelerator stuck three days after purchase, destroying a mobile home.
Same Ford F-150 fuel system reports on nearby years: 2005 · 2007
Failure modes owners describe
Fuel tank seam leaks / plastic fuel tank failure
Plastic fuel tanks rupture or crack at the welded seams, allowing fuel to spray onto the ground. Owners describe the tank design as two plastic halves sealed in the middle. Failures occur without impact or apparent cause, creating fire hazards and causing rapid fuel loss.
When: Early in vehicle life or random; one case at 28,000 miles
Symptoms owners cite: Fuel smell when starting truck; Visible fuel pouring from tank area; Gas gauge reads low shortly after filling; Fuel loss over short distances (15 miles)
Repairs/costs cited: Tank replacement required; owners reported attempting temporary plastic seals without success
Fuel pump driver module corrosion and failure
Aluminum or alloy fuel pump driver module mounted directly to steel frame crossmember above spare tire corrodes rapidly due to electrolysis between dissimilar metals and salt/moisture entrapment. Housing cracks or erodes through, allowing water inside and shorting the electronics. Module is OEM part FL8A-9D370-AA or 9D370. Failures leave vehicles unable to start or cause stalling at any speed without warning.
When: Typically 40,000–58,000 miles; reported as common in northern/cold states with road salt
Symptoms owners cite: Engine cranks but will not fire; Vehicle stalls while driving at any speed; Complete loss of engine power with no restart; No check engine lights or diagnostic codes appear
Repairs/costs cited: Module replacement $163–$234 OEM; upgraded replacement has plastic housing with spacers to reduce corrosion
Recalls/TSBs owners mention: Upgraded part exists but no recall issued; owners note Ford must know of the problem since they redesigned the part
Fuel injector failure and engine damage
Fuel injectors stick open or fail, flooding cylinders and causing hydrolock or severe engine damage. One case cites Ford CSP 07M08 (2005 model year issue); owner's 2006 built in 2005 experienced identical failure but was refused coverage. Multiple owners had to replace entire engines at $8,000+.
When: 71,000 miles (one case); 28,000 miles (another case)
Symptoms owners cite: Engine runs rough when letting off accelerator; Heavy smoking on restart; Rough idle; Loss of power; sluggish acceleration; Check engine light
Repairs/costs cited: Initial diagnosis: injector replacement $400; discovered hydrolock and thrown rod required full engine replacement
Recalls/TSBs owners mention: 2005 F-150 covered under CSP 07M08; Ford refused to extend warranty to 2006 models despite identical defect
Poor fuel economy and rough idle
Trucks deliver significantly lower fuel economy than EPA standards despite minimal mileage. Rough idle with RPM drops below 1,000. Black soot on exhaust indicates MAF sensor or oxygen sensor issues. K&N air filter change improved mileage slightly but did not resolve underlying issue.
When: From purchase (25,000 miles reported)
Symptoms owners cite: 13 MPG city/highway (expected 17–20 MPG); Rough idle dropping below 1,000 RPM; Black soot on exhaust pipe; Improved to 15 MPG after K&N filter installation only
Repairs/costs cited: Owner replaced MAF sensor; Ford dealer twice claimed driving behavior was at fault
Recalls/TSBs owners mention: Ford dealerships blamed driver behavior despite black soot evidence
Fuel filler neck and overspray at pump
Fuel nozzle shuts off prematurely and fuel backs up into tank, spraying onto vehicle and owner. Problem occurs at multiple gas stations, suggesting fuel tank design issue. Some reports state fuel pours out after normal fill-up without topping off. Angle of fuel line into tank filler neck creates poor fit for nozzle.
When: Recurring issue at any fill-up
Symptoms owners cite: Nozzle shuts off before tank is full; Fuel backs up and oversprays side of truck and owner; Fuel pours out of filler neck after removal of pump; Nozzle does not fit snugly in filler opening
Repairs/costs cited: Dealer replaced fuel filler tube and ordered new fuel gauge but could not resolve issue after two weeks
Water intrusion into fuel tank
Substantial amounts of water appear in fuel tank without external access or tampering. Mechanic indicated water from rain drips through truck bed seams and rivets onto fuel pump, entering tank when truck is parked. Owner found this is widely reported in online searches for 'water in Ford F150 fuel tank.'
When: After extended parking periods
Symptoms owners cite: Engine stalling; Water detected in fuel tank
Fuel tank strap corrosion and failure
Front fuel tank strap rusts out and breaks despite minimal rust visible elsewhere on vehicle and no winter road exposure. Tank drops to ground while filling at gas station, creating imminent explosion hazard.
When: 38 months old, 28,000 miles
Symptoms owners cite: Front strap visibly rusted and fractured; Tank falls away from vehicle at fuel pump
Repairs/costs cited: Tank replacement
Vehicle fire during normal operation
Two separate reports (in Spanish) describe F-150 catching fire during normal driving with no apparent cause. Owners state defects were detected at dealership but never corrected. No details of underlying fuel system defect specified in complaint text.
When: During normal highway driving
Symptoms owners cite: Vehicle catches fire spontaneously
Recalls/TSBs owners mention: Warranty denied by Ford Motor Company
Spark plug seizure in 5.4L V8
Spark plugs seize to cylinder heads and cannot be removed. Listed as scheduled maintenance item at 100,000 miles, creating design flaw. Associated with loss of engine power and consequent loss of steering and brakes.
When: 100,000 miles (scheduled maintenance)
Symptoms owners cite: Spark plugs seized to cylinder head; Engine stops; Loss of power steering and brakes
Fuel gauge failure
Fuel gauge stops working, leaving driver unable to know fuel level. Coincides with fuel filler neck problems in at least one case.
When: Occurs with filler neck issues
Symptoms owners cite: Fuel gauge non-functional
Repairs/costs cited: Dealer ordered new gauge but could not resolve problem within two weeks
Intermittent engine stalling while driving
Engine stalls randomly while vehicle is in motion at any speed. Restarts after shutdown but stalls again after hours or days of normal operation.
When: Random; unpredictable intervals
Symptoms owners cite: Engine stalls while driving; Restarts after key cycle; Recurring stalls unpredictably
Sticky accelerator pedal
Gas pedal stuck on, causing unintended acceleration. One case resulted in collision with mobile home and destruction of both truck and structure within days of purchase.
When: 700 feet of driving, 4 days after purchase (9,177 miles on odometer)
Symptoms owners cite: Accelerator pedal sticks in open position; Unintended rapid acceleration in reverse
Recalls/TSBs owners mention: Dealership refused to investigate; threatened to call police on owner
Synthesized from 30 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 0 most recent
Had fuel system trouble with your 2006 Ford F-150?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the fuel system problem on the 2006 Ford F-150?
It's a meaningful issue. 30 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $1,200.
At what mileage does the fuel system typically fail?
Across the 26 complaints that reported odometer mileage, most fuel system failures cluster between 28,000 and 84,000 miles, with the median around 60,000. A quarter of owners report trouble before 28,000; a quarter make it past 84,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $1,200 for fuel system repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to fuel system?
No active recalls currently cover fuel system issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2006/Ford/F-150.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.