2011 - 2017 Model Year Changes
2011
In response to GM's release of a new generation Duramax diesel with more potent power ratings than Ford's 6.7L Power Stroke, Ford Motor Company issued a revised calibration for the 6.7 liter that increased its power from 390 horsepower to 400 horsepower and its torque from 735 lb-ft to 800 lb-ft. This new calibration was made available to owners via a free PCM reflash available through Ford dealerships.
2012
• A stamped steel oil pan with a conventional bolt-type oil plug replaced the plastic oil pan and plastic 1/4 turn drain valve.
•Revised oil cooler secures without any hidden hardware; to remove original oil cooler, the lower oil pan needed to be removed in order to access a hidden stud securing the oil cooler assembly from the back side. Revised oil cooler is secured with exterior bolts only and is serviceable without removing the lower oil pan.
• DPF differential pressure sensor added to exhaust system to measure the pressure differential across the diesel particulate filter for the purpose of monitoring DPF condition.
• Revised oil and coolant feed lines for the turbocharger, quick connect fittings replaced with conventional bolt on fittings for improved sealing and durability.
2013
• Crankcase ventilation sensor added, signals to PCM whether the crankcase vent hose is connected or disconnected.
• An additional NOx sensor and NOx sensor module added to the exhaust system in order to perpetually monitor the effectiveness of the SCR system. The new arrangement adds an NOx sensor before the inlet of the SCR catalyst, previous system only had a NOx sensor at the outlet of the catalyst
2014
No significant or notable changes to the 6.7L Power Stroke engine platform.
2015
• Peak engine power increased from 400 to 440 horsepower for all Super duty pickup trucks (40 horsepower increase).
• Peak engine torque increased from 800 to 860 lb-ft for all Super Duty pickup trucks (60 lb-ft increase).
• 6.7L Power Stroke diesel added to Ford F-650 and F-750 medium duty trucks; available in 270, 300, and 330 horsepower configurations.
• Particulate matter sensor and sensor module added at the DPF outlet in order to measure filtration effectiveness.
• Updated fuel pressure and temperature sensor that measures actual fuel pressure. The previous sensor acted like a switch (no measurements, only "on" and "off" states) that identified to the PCM whether there was pressure or not, but did not give the PCM an actual fuel pressure reading.
• Coolant flow through the EGR cooler re-routed such that both stages of cooling are managed by the primary (high temperature) cooling system circuit. The previous arrangement relied on the primary cooling system for the first stage of cooling and the secondary (low temperature) cooling system for the second stage of EGR cooling.
• Temperature sensor added to the inlet of the EGR cooler (pickup trucks only).
• Revised fan clutch design with additional heat sinks in order to more effectively dissipate heat, thereby improving durability.
• IROX polymer coated lower main bearings introduced for added durability at greater performance levels.
• Larger GT37 single variable geometry turbocharger replaces the GT32 twin compressor "DualBoost" turbo. Improved throttle response and high altitude performance. Wastegate eliminated, turbocharger produces ~30 psi at max load with an impeller speed of ~130,000 rpm.
• New lower intake manifold, revised to accommodate the new VGT turbocharger with a single air inlet.
• New downpipe inlet design to accommodate the new VGT turbocharger with larger outlet size (pickup trucks only, chassis cab retains a smaller VGT).
• Turbocharger coolant return and engine oil supply line fittings changed from quick connect style to bolt-on flange type for improved sealing and increased reliability; previous quick connect fittings more prone to developing leaks.
• Manually activated, more effective exhaust braking system added, works in conjunction with new VGT.
• Upgraded high pressure fuel pump (injection pump). New pump looks identical, but features a longer stroke.
• Revised injector design, more efficiency nozzle design for reduced emissions and improved performance.
• Revised crankshaft damper design with added mass; necessary due to the increased torsional forces produced by the more powerful engine.
• Revised lower main bearings with IROX polymer coating.
• Strengthened cylinder head design.
• High capacity torque converter introduced, transmission shift schedule not significantly altered.
• DPF differential pressure sensor removed (previously introduced as a 2012 model year update).
• Particulate matter sensor and module added to exhaust aftertreatment system. The PM sensor monitors and reports particulate matter density in the exhaust stream to identify probable problems with the diesel particulate filter.
2016
No significant or notable changes to the 6.7L Power Stroke engine platform.
2017
• Peak engine torque increased from 860 lb-ft to 925 lb-ft.
• Revised oil supply line and turbo pedestal.
2018 - 2023 Model Year Changes
2020
• Peak engine power increased from 450 to 475 horsepower for all Super Duty pickup trucks (25 horsepower increase).
• Peak engine torque increased from 935 to 1,050 lb-ft for all Super Duty pickup trucks (115 lb-ft increase).
• Peak engine torque increased from 750 to 825 lb-ft for all Super Duty chassis cab trucks (75 lb-ft increase).
• Fuel system refinements with increased maximum fuel injection pressure (36,000 psi).
• Strengthened engine block casting, enhanced block structure.
• Strengthened cylinder head casting, revised cylinder head design.
• New forged steel pistons, short skirt design (previously aluminum pistons); compression ratio lowered from 16.2 to 15.8 to 1.
• Revised split stream piston cooling jets.
• Strengthened connecting rod design; powdered metal, fractured cap connecting rods, lengthened to accommodate shorter pistons.
• New medium carbon alloy steel crankshaft with revised damper.
• Improved main bearing and connecting rod bearing designs.
• New composite two piece lower intake manifold design.
• Fuel lift pump moved from the externally mounted diesel fuel conditioning module (DFCM) to inside the fuel tank.
• 10R140 10 speed automatic transmission becomes standard on all pickup and chassis cab trucks; 6R140 remains standard on all medium duty F-650 and F-750 models.
• Transmission cooler moved, mounted to lower front section of the 10R140 transmission.
2023
• High output 6.7L Power Stroke diesel engine option now available, rated at 500 horsepower and 1,200 lb-ft of torque.