FORD: 2011-2014 F-SUPER DUTY VEHICLES EQUIPPED WITH 6.7L DIESEL ENGINE MAY EXPERIENCE A RUNNING ROUGH OR MISFIRE DURING EXHAUST REGENERATION PROCESS
full bulletin at NHTSA ↗2012 Ford F-450 engine problems
moderate 5 complaints filed with NHTSA · avg repair $3,100 · see engine across all vehicles →
Complaints
5
Recalls
0
Avg fix
$3,100
When does it fail?
Of the 5 engine complaints filed for the 2012 Ford F-450, here's the actual mileage breakdown — failures cluster heaviest at 50,000-75,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
No new NHTSA engine complaint has been filed on this vehicle in over 10 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering engine 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.
FORD: CERTAIN 2011-2015 FORD F-SUPER DUTY WITH 6.7 DIESEL ENGINES MAY EXPERIENCE A VIBRATION BUZZ NOISE FROM THE DIESEL FUEL CONDITIONING MODULE (DFCM) AND/OR MAY 10/1/1 PRESSURE FUEL LINES W/O DIAGNOSTIC TROUBLE CODE POOSA.
full bulletin at NHTSA ↗FORD: IN SOME DIESEL TRUCKS, THE MIL MAY ILLUMINATE AND IS MOST COMMON WITH TRUCKS OPERATING IN LOW SPEED DRIVING AND/OR OPERATING IN STATIONARY IDLE MODE FOR AN EXTENDED PERIODS OF TIME, WHERE THE EXHAUST REGENERATION PROCESS IS NOT FULLY COMPLETED. MODEL 2012 F-450, F-550 SUPER DUTY.
full bulletin at NHTSA ↗FORD: WHEN TRUCK IS PREVENTED, AFTER AN EXTENDED TIME PERIOD OF STATIONARY IDLENESS OR LOW SPEED DRIVING, IT FAILS TO COMPLETE EXHAUST REGENERATION PROCESS AND ILLUMINATES MIL AND DTC P207F WITH/WITHOUT DTC P204F. MODEL 2012 F-450, 550.
full bulletin at NHTSA ↗FORD: ON SOME TRUCKS, THE EXHAUST REDUCTANT SYSTEM OR THE NOX CONTROL MODULE WOULD EXPERIENCE VARIOUS MIL DTC'S RELATED TO GLOW PLUG CONTROL MODULE (GPCM), DUE TO LOOSE, MISSING, MODIFIED OR DAMAGED GROUND G400. NO MODELS LISTED. MODEL YEARS 2011-2013.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 5 most recent
While transporting a patient to the hospital the engine on our 2012 Ford ambulance suddenly and without warning derated. This caused our ambulance to slow dramatically and delayed transport to the hospital. We brought the ambulance to the dealer who stated the entire DEF system would need to be replaced at a cost of $5,000! I researching the internet this is not an uncommon problem. I…
Tl* the contact owns a 2012 Ford f-450. While driving 40 MPH, the vehicle began to stall and the check engine and oil pressure warning indicators illuminated. The contact was able to park the vehicle on the side of the road as it stalled and turned off. The vehicle was towed to an independent mechanic and then to bayshore Ford truck sales (located at 4003 n dupont hwy, new castle, de 19720, (302)…
This vehicle is an ambulance and was dispatched on an emergency call. The crew attempted to crank the vehicle, but the starter would not even engage. Another ambulance had to be dispatched to the call. It was later determined that one of the four egt exhaust gas temperatur sensors had failed and disabled the vehicle. Had the vehicle been traveling on the highway, a very dangerous situation could…
This vehicle, which is an ambulance, was dispatched to an emergency call. As they turned into the drive of the facility the chimes sounded and the engine shut off. Had this vehicle been on the highway at the time, it would have been a very dangerous situation for the crew involved. At the very least, another ambulance had to be dispatched to the call and delayed care to the patient. It was…
We have to replace our fuel tank because the lining has delaminated. We have already had to replace the engine which may have been a result of the lining deterioration.
Had engine trouble with your 2012 Ford F-450?
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 engine problem on the 2012 Ford F-450?
It's a documented issue but not catastrophic. 5 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.
At what mileage does the engine typically fail?
Based on the 5 complaints filed, engine issues most often appear around 54,319 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine 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 engine?
No active recalls currently cover engine 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/2012/Ford/F-450.
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.