The Lemon Index
The 6.7 L V8 turbo diesel in the Ford Super Duty (F-250/F-350), model years 2011–2026. Owners filed 5,640 complaints about trucks with it (matched by VIN); 10% name the engine, #7 of the 12 diesel truck engine generations we track (1 = the most).
Known issues, checked against owner complaints
Problems owners of trucks with this engine name much more often than owners of other diesel truck generations (at least 1.5× the median, and 10+ complaints):
- The CP4.2 high-pressure fuel pump. 172 of 5,640 owner complaints (3.0%) mention the CP4 or the high-pressure fuel pump, against a median of 0.3% for the other diesel truck generations we track.
Failure of Bosch CP4 fuel pump causing me to be stranded on the side of the road. No recalls currently issued and cannot afford a $15,000 fix
2016 owner · NHTSA complaint 11768676 - The DPF / DEF / NOx sensors. 147 of 5,640 owner complaints (2.6%) mention the DPF, DEF or regen system, against a median of 0.1% for the other diesel truck generations we track.
DEF heater failure will cause increased emissions. The warning light flashes. I have seen details where there are issues with the wiring harness for the DEF heater.
2020 owner · NHTSA complaint 11753244
Also often talked about, but not standing out in complaints to NHTSA: the turbo (27 of 5,640, 0.5%, peers 1.3%). That doesn't mean it never happens, only that owners rarely file it with the government.
What YouTube owners say Tone 0-100, higher = more praise than trouble.
Average owner tone 37/100 across 15 model years, from 179 videos about this engine and its cars.
Most-watched videos
- CP4 to DCR Pump Conversion: Ford 6.7L Power Stroke #fordtrucks #powerstroke #diesel #ssfueled #short 797,775 views
- Ford 6.7 Power Stroke Failure 752,414 views
- ***FORD 6.7 DIESEL 2013 F-350 OVER 1,000,000 MILES*** TRUE UNICORN | BUY FORD | BUY AMERICAN 628,159 views
- How to FINALLY DISASTERPROOF your 6.7 POWERSTROKE! - HOLY GRAIL MOD! 519,326 views
Counted from video titles and captions: praise words against trouble words, weighted by views. Videos only count when the title names this engine or a car that had only this engine in those years.
Owner complaints by model year
Counts of complaints filed so far. Older trucks have had longer to collect them, and popular years draw more because more were sold: no one reports sales by engine, so there's no per-truck rate. Compare the shares below instead.
What owners complain about
Share of this engine's complaints that name each area (one complaint can name several).
What owners write
| Complaints that | Count | Share | Median, other diesel truck engines |
|---|---|---|---|
| Mention a "death wobble" | 1,757 | 31% | 0.2% |
| Say the engine stalled, shut off or lost power | 442 | 7.8% | 7.8% |
| Mention the CP4 or the high-pressure fuel pump | 172 | 3.0% | 0.3% |
| Mention the DPF, DEF or regen system | 147 | 2.6% | 0.1% |
| Mention an injector | 69 | 1.2% | 2.5% |
| Mention coolant loss or overheating | 40 | 0.7% | 0.8% |
| Mention a fuel leak | 30 | 0.5% | 0.4% |
| Mention the turbo | 27 | 0.5% | 1.3% |
| Mention the EGR system | 21 | 0.4% | 0.3% |
| Mention an oil leak | 19 | 0.3% | 0.5% |
Counted from the owner's own words in each complaint (all of the truck, not only the engine). A share, not a failure rate.
When problems show up
Half of the owners who gave a mileage reported the problem between 19,000 and 72,000 miles; the middle report was at 35,000 miles (3,554 complaints with a mileage).
Recalls that name this engine 6
22V256000 Apr 2022 Power Train
Ford Motor Company (Ford) is recalling certain 2020 Super Duty F-250, F-350, F-450, and F-550 vehicles equipped with 6.7L diesel engines. A washer within the vehicle's transmission can disintegrate, causing metallic debris to become lodged in the 'Park' mechanism.
Fix. Dealers will replace a gearset within the transmission, free of charge. Owner notification letters were mailed on April 19, 2023. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 22S22.
22V013000 Jan 2022 Fuel System, Diesel
Ford Motor Company (Ford) is recalling certain 2021 Super Duty F-250, F-350, F-450, F-550, F-600, and Medium Duty F-650 and F-750 vehicles equipped with 6.7L diesel engines. A small void may be present in the top-center of the vehicle's underhood secondary fuel filter cap, which may progress to a pinhole over time, allowing fuel to leak from the top of the secondary fuel filter.
Fix. Dealers will replace the primary and secondary fuel filters, free of charge. Owner notification letters were mailed January 28, 2022. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 22S01.
21V536000 Jul 2021 Power Train
Ford Motor Company (Ford) is recalling certain 2020-2021 F-350 Super Duty pickup trucks equipped with 6.7L diesel engines and Dana model 275 rear axles. The rear axle housing may not support the load of the pickup truck and deform, which could result in driveshaft separation.
Fix. Dealers will inspect the axle housing for deformities, and repair or replace the housing, as necessary, free of charge. Owner notification letters were mailed on September 3, 2021. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall 21S31.
21V087000 Feb 2021 Equipment
Ford Motor Company (Ford) is recalling certain 2020 F-Super Duty F350 vehicles equipped with a 6.7L diesel engine, single rear wheels (SRW), 4X4 Crew Cab, Long Box, and a 12k or 12.4k Gross Vehicle Weight Rating. These vehicles may display overstated payload capacity values on the Tire and Loading Information (TREAD) Label, overstated Accessory Reserve Capacity (ARC) values on the Safety Certification Label, and overstated weight values on the Truck Camper Loading Documentation. If the vehicle is loaded to the payload stated on the TREAD label, it may exceed the Gross Vehicle Weight Rating (GVWR) or Gross Axle Weight Rating (GAWR) and overload the vehicle.
Fix. Ford will notify owners, and dealers will replace the Tire and Loading Information Label, Safety Certification Label, and the Truck Camper Loading Document (if applicable), free of charge. The recall began March 23, 2021. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 21S06.
14V204000 Apr 2014 Power Train
Ford Motor Company (Ford) is recalling certain model year 2015 F-250, F-350, F-450, and F-550 Super Duty trucks manufactured September 13, 2013, through March 28, 2014, and equipped with 6.2L gasoline or 6.7L diesel engines and 6R140 transmissions. An error with the transmission control software may be such that while shifting from "Park" to "Drive" the vehicle may display "Drive" but possibly engage "Reverse" for 1.5 seconds before engaging "Drive." Therefore, the vehicles do not conform to Federal Motor Vehicle Safety Standard (FMVSS) number 102, "Transmission Shift Lever Sequence, Starter Interlock, and Transmission Braking Effect."
Fix. Ford will notify owners, and dealers will update the transmission software, free of charge. The recall began on May 6, 2014. Owners may contact Fords customer service at 1-800-392-3673. Ford's number for this recall is 14C04.
13V535000 Oct 2013 Engine
Ford Motor Company (Ford) is recalling certain model year 2011-2012 F-350/450/550 Ambulance Package vehicles manufactured February 22, 2010, through October 19, 2012 and equipped with a 6.7L diesel engine. Due to an exhaust sensor problem, the vehicles may experience loss of power followed by an engine stall.
Fix. Ford will notify owners, and dealers will replace the exhaust gas temperature sensor, free of charge. The recall began on November 25, 2013. Owners may contact Ford Motor Company Customer Relationship Center at 1-866-436-7332. Ford's recall campaign number is 13S10.
NHTSA recalls on these trucks and years whose text names this engine (its size, or diesel / Cummins / Duramax / Power Stroke). The rest (brakes, air bags, wiring ...) are on each truck year's page.
Trucks with this engine
In owners' words
Leak in upper fuel filter. The part is plastic and fumes are getting in can of truck and fuel on engine.
2021 Ford Super Duty (F-250/F-350) owner · NHTSA complaint 11775195
Tailgate opens while driving with out me pushing the button. Puts people at risk by stuff in back of the truck falling out on the highway. Second the side view cameras are blurry can’t see anything. Put the people on the side of the truck at risk of being hit.
2018 Ford Super Duty (F-250/F-350) owner · NHTSA complaint 11773517
Pulled into my driveway, put vehicle in park and vehicle rolled away. Dealer says transmission needs to be replaced. NHTSA bulletin 22s22 is a roll away risk for 2020 F-250 but my VIN is not included in this recall but I fear more vehicles were affected by this then what ford reported
2020 Ford Super Duty (F-250/F-350) owner · NHTSA complaint 11771505
Against the other diesel truck engine generations
| Engine | Years | Complaints | Name the engine | Name the fuel system | Stalled or lost power | Recalls naming it |
|---|---|---|---|---|---|---|
| 6.0 Power Stroke | 2003–07 | 1,708 | 34% | 16% | 31% | 2 |
| 6.4 Power Stroke | 2008–10 | 572 | 28% | 7% | 11% | 2 |
| Duramax L5P | 2017–26 | 1,229 | 16% | 10% | 14% | 2 |
| 7.3 Power Stroke | 1999–03 | 2,049 | 15% | 5% | 12% | 1 |
| Duramax LML | 2011–16 | 779 | 13% | 20% | 17% | 0 |
| 6.7 Cummins | 2007–26 | 7,667 | 11% | 8% | 6.4% | 9 |
| 6.7 Power Stroke | 2011–26 | 5,640 | 10% | 11% | 7.8% | 6 |
| Duramax LBZ | 2006–07 | 186 | 8% | 5% | 7.0% | 0 |
| Duramax LMM | 2007–10 | 385 | 8% | 6% | 5.2% | 0 |
| Duramax LB7 | 2001–04 | 592 | 7% | 17% | 5.4% | 1 |
| Duramax LLY | 2004–06 | 374 | 7% | 11% | 7.8% | 0 |
| 5.9 Cummins | 1999–07 | 3,245 | 4% | 7% | 5.0% | 0 |
Shares of each engine's own complaints, matched by VIN. They show what owners complain about, not how often trucks break. Every diesel truck engine compared
Quick answers
Is the Ford 6.7 Power Stroke reliable?
No one reports sales by engine, so there's no per-truck score. Of the 5,640 complaints owners filed about trucks with it, 10% name the engine, #7 of 12 diesel truck engine generations we track (1 = the most). 172 (3.0%) mention the CP4 or the high-pressure fuel pump, against 0.3% for its peers. 147 (2.6%) mention the DPF, DEF or regen system, against 0.1% for its peers.
What trucks have the Ford 6.7 Power Stroke?
In our data: the Ford Super Duty (F-250/F-350), model years 2011–2026, matched by the VIN in each owner complaint.
What are the most common 6.7 Power Stroke problems?
In owner complaints to the government: steering, suspension, fuel system.
How many recalls name the 6.7 Power Stroke?
6 NHTSA recalls on these trucks name it.
Source: NHTSA owner complaints (FLAT_CMPL + COMPLAINTS_RECEIVED_2025-2026), received through 20261109; engines: NHTSA vPIC VIN decoder; NHTSA recalls API. Engine names and years: Ford.