Is the 2012 6.7 powerstroke a good engine?
The 2012 6.7 Power Stroke is generally considered a solid, durable diesel that excels at towing and long-haul work, provided it has been properly maintained and known issues have been addressed.
In this article, we examine the engine’s design, performance, reliability history, common issues seen in the 2012 model year, and practical maintenance guidance for current or prospective owners.
Engine design and performance
The 6.7L Power Stroke is a turbocharged V8 diesel developed for Ford’s heavy‑duty pickups, with input from Navistar. For the 2012 model year, Ford rated roughly 400 horsepower and about 800 lb-ft of torque, making it one of the strongest diesels in its class at the time. It employs a modern high‑pressure common‑rail fuel system and emissions equipment, including a diesel particulate filter, to meet stringent standards while delivering strong pulling power at low engine speeds. Paired with Ford’s TorqShift 6‑speed automatic transmission, the engine is widely regarded for confident highway performance and towing capability, especially when under load.
Reliability and known issues
Like any complex diesel, the 2012 6.7 Power Stroke has had reliability considerations. When properly maintained, many engines deliver dependable service, but early production years saw some recurring issues that owners should be aware of. The following items have been commonly discussed among owners and service professionals.
Key strengths cited by owners and reviewers include:
- Strong low‑end torque and solid towing capability
- Durable construction designed for heavy‑duty use
- Extensive aftermarket support and readily available replacement parts
- Effective emissions controls with proper maintenance
- Competitive performance for a diesel in its class
In brief, a well‑maintained 2012 6.7 Power Stroke can deliver dependable service for many miles, particularly for owners who regularly tow or haul heavy loads.
Common issues and maintenance considerations
There are several issues that have shown up in 2011–2012 6.7 models, especially as mileage increases. Being aware of them helps buyers and owners address problems early and plan maintenance accordingly.
- EGR cooler failures and coolant leaks, which can lead to overheating or coolant/oil contamination if not addressed
- Oil cooler or cooling system leaks that can affect cooling efficiency and oil quality
- Fuel-system wear, including high‑pressure fuel pump and injector concerns in higher‑mileage examples
- Turbos and related actuator components that can cause boost control or performance variability
- DPF/regeneration‑related emissions issues that may require servicing or cleaning
- Sensors and electronic control faults common to older diesels, often mitigated by software updates or part replacements
If a 2012 6.7 has been properly maintained and inspected, these issues do not have to be deal‑breakers. Regular maintenance and timely part updates help ensure long life and dependable operation.
Maintenance and ownership tips
To maximize reliability and minimize unexpected repairs, follow a disciplined maintenance plan and stay ahead of wear items common to this engine.
- Use OEM‑grade synthetic diesel oil (commonly 5W‑40) and adhere to Ford’s service intervals, including timely oil and filter changes
- Regularly replace fuel filters and monitor the high‑pressure fuel system for signs of hard starting, rough idle, or power loss
- Keep the cooling system in good shape: replace coolant on schedule and inspect the EGR cooler and oil cooler for leaks
- Monitor for oil in the coolant or coolant in the oil, which can indicate cooler or head gasket issues
- Ensure the DEF system is functioning correctly and watch for emissions‑related fault codes
- Conduct a thorough pre‑purchase inspection if buying used, focusing on the cooling system, EGR components, injector health, and transmission condition
With proactive maintenance and prompt attention to any issues, the 2012 6.7 Power Stroke can provide reliable, high‑torque performance for many miles.
Summary
The 2012 Ford 6.7 Power Stroke remains a strong choice among older diesel pickups for buyers who value torque, towing capability, and relatively modern emissions controls. Its reliability hinges on meticulous maintenance and awareness of known problem areas, especially on higher‑mileage examples. For prospective buyers, a careful pre‑purchase inspection and a documented service history are essential to gauge whether a used 2012 model will deliver long‑term satisfaction.
What year 6.7 has a bad turbo?
Turbocharger failures were common on 2011 and 2012 model year 6.7L Power Stroke-equipped pickups because of weak ceramic ball bearings. A switch was made to steel ball bearings. Unfortunately, it wasn't enough to keep this turbo in production.
Are 2012 6.7 powerstrokes reliable?
The Ford 6.7L Power Stroke Diesel engine has earned a strong reputation for performance, reliability, and towing capacity.
What year to avoid 6.7 power stroke?
The 6.7 Powerstroke years to avoid are primarily 2011-2014 due to issues like turbocharger failures (especially in 2011-2012 models with ceramic bearings), oil pan leaks, and intercooler leaks. While later models are more reliable, the 2017-2019 models can also have problems with the high-pressure fuel pump and oil cooler, and the 2020-2021 models had issues with the 10-speed transmission before an update in 2022.
This video explains the common issues in the first generation of the 6.7 Powerstroke: 1mFlying WrenchesYouTube · Jan 29, 2025
2011-2014: The first generation
- Turbocharger: Early 2011-2012 models are notorious for turbo failure due to ceramic bearings. Leaks from the turbo coolant fittings were also common, with a fix implemented in 2015.
- Oil Pan: 2011 models had a plastic oil pan that was prone to leaking, requiring transmission removal for replacement.
- Intercooler: Internal intercooler leaks that push coolant into the engine are more common in this generation.
- Vacuum Pump: Some early models had issues with vacuum pump bolts backing out.
- Exhaust Valves: Some very early 2011 models (pre-mid-March build date) had defective exhaust valves that could cause catastrophic engine damage.
Later generations with issues
- 2017-2019: These models can have issues with the high-pressure fuel pump, leading some to recommend an aftermarket fuel system kit. Problems with the oil cooler and front-end steering components were also reported.
- 2020-2021: These years had problems with the 10-speed automatic transmission. The 2022 model year saw an updated, more reliable 10-speed transmission.
What is the best year to buy a 6.7 Powerstroke?
2015+ gets you a bulletproof 6.7 . Power slowly increased along the way, making jumps in 2017 , 2020, and 2023 with the H.O. making 500hp and 1200tq. From 2015 on, all that matters is your budget.
