Is the Ford 6.7 diesel a good engine?
Yes. The Ford 6.7L Power Stroke is widely regarded as a strong, durable diesel for Ford Super Duty pickups, delivering ample torque and towing capability. It can be a reliable workhorse when properly maintained, though it carries notable maintenance costs and potential issues with fuel-system components and emissions equipment that buyers should understand.
Performance and Capabilities
The following list highlights the engine’s power characteristics and practical towing ability, along with considerations for daily drivability.
- High torque and strong towing capability across the engine’s operating range
- Robust bottom-end durability designed for heavy-duty work
- Solid performance with good throttle response for a diesel in a full-size pickup
- Extensive aftermarket support and Ford dealer network for maintenance and repairs
Overall, these attributes help the 6.7L Power Stroke perform well in real-world workloads, from daily driving to long-haul towing.
Reliability and Common Issues
Understanding reliability requires looking at typical failure points and how they’re managed through design and maintenance.
- Potential fuel-system failures in some model years, notably high-pressure fuel components (fuel injectors and high-pressure pump), which can be costly to repair
- Emissions and DEF (diesel exhaust fluid) system complexity that can require attention to sensors, lines, and dosing
- Turbocharger wear and EGR-related concerns in older or high-mileage examples
- Maintenance history plays a large role; well-maintained engines tend to avoid or delay many common issues
In summary, the engine’s reliability is generally solid for a modern heavy-duty diesel, but owners should plan for potentially expensive repairs if fuel and emissions components are neglected or timed out of service.
Maintenance and Longevity
Proper maintenance is central to maximizing life and performance of the 6.7L Power Stroke.
- Follow Ford’s recommended maintenance schedule and use quality lubricants and filters
- Keep fuel clean and use reputable fuel sources; monitor the fuel system for signs of issues
- Regularly service the DEF/aftertreatment system and address any sensor or heater faults promptly
- Inspect the exhaust and cooling systems, including the EGR, turbo, and intercooler, as part of routine maintenance
When these practices are followed, the 6.7L Power Stroke can deliver long service life and dependable performance in demanding applications.
Buying Considerations
For prospective buyers, certain model-year differences and condition indicators matter most when evaluating a used or new truck with this engine.
- Model year variations exist in power output, emissions calibration, and known issues; newer years generally bring refinements
- Demand thorough maintenance records, especially for fuel-system and DEF-related work
- Request a comprehensive pre-purchase inspection focusing on the engine, fuel system, injectors, HPFP, turbo, EGR, and aftertreatment components
- Consider total ownership costs, including potential injector/HPFP repairs and DEF system service
Approached with a careful eye to maintenance history and a recent diagnostic, the 6.7L can be a solid long-term investment for buyers seeking durability and torque in a heavy-duty pickup.
Summary
The Ford 6.7L Power Stroke remains a compelling choice for buyers wanting a strong, torque-rich diesel with proven heavy-duty capability. Its strengths include robust towing performance and broad support network, while its weaknesses center on potential fuel-system and emissions-system maintenance and the associated repair costs. With diligent maintenance, a clear service history, and careful pre-purchase evaluation, the 6.7L Power Stroke can deliver reliable, high-mileage service in Ford’s Super Duty lineup.
