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Service bulletins for the 2021 Ford F-450

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

237 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
SSM 510782022-09-20. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Some 2020-2022 F-Super Duty vehicles equipped with a 6.2L or 7.3L gas engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P0339 stored in the powertrain control module (PCM) or the vehicle may exhibit a runs rough concern with no DTCs. This may be due the crankshaft position (CKP) sensor. If pinpoint test JD in the Powertrain Control/Emissions Diagnosis (PC/ED) Manual or Workshop Manual (WSM), Section 303-14 leads to CKP sensor replacement, use service part LC3Z-6C315-C. For claiming, use causal part 6C315 and labor operation 12650D57D in the Service Labor Time Standards (SLTS) Manual.
SSM 508302022-06-17. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT ADAPTIVE/MOBILITY. Some 2020-2022 F-Super Duty vehicles equipped with a 7.3L engine and built on or before 11-May-2022 may exhibit a ticking/clicking/tapping noise at idle that is loudest at the front of the engine where the front timing cover meets the oil pan. This may be due to a cracked oil pump drive gear. If the noise originates from the lower front of the engine, remove the accessory drive belt and retest. If the noise is still present, remove the oil pan and rotate the crankshaft 360 degrees to inspect for cracking. If cracked, replace the oil pump drive gear (LC3Z-6306-A).
SSM 508162022-06-01. Service bulletin. ENGINE AND ENGINE COOLING. Some 2020-2022 F-Super Duty vehicles equipped with a 6.7L engine may exhibit an illuminated malfunction indicator lamp (MIL) with cylinder injection pulse offset diagnostic trouble codes (DTC) P2B11, P2B13, P2B15, P2B17, P2B19, P2B1B, P2B1D, and/or P2B1F stored in the powertrain control module (PCM) after various fuel system repairs. This may be due to incorrect learned values in the PCM. To correct the condition, allow the engine to idle for at least 6 minutes with engine coolant temperature (ECT) at or above 170°F (75°C). For pickup vehicles, exhaust gas temperature (EGT12) must also be at or above 475°F (245°C). For chassis cab vehicles, EGT13 must be at or above 450°F (230°C). Clear DTCs and retest. PCM replacement is not necessary for this condition.
SSM 506732022-04-13. Service bulletin. ENGINE AND ENGINE COOLING. Some 2020-2022 F-Super Duty vehicles equipped with a 6.7L engine may exhibit a cooling fan with excessive noise or stays on continuously. The Workshop Manual (WSM), Section 303-03 Engine Cooling > Diagnosis and Testing > Cooling Fan Control, pinpoint test (PPT) AH for 2021-2022 and Powertrain Control/Emissions Diagnosis (PC/ED) Manual PPT AH for 2020 have been updated to improve diagnostics and reduce unnecessary cooling fan clutch replacements.
SSM 506462022-04-13. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN; ELECTRICAL SYSTEM. Some 2020-2022 F-Super Duty vehicles equipped with a 6.7L engine may exhibit an illuminated malfunction indicator lamp (MIL) with cylinder injection pulse offset diagnostic trouble codes (DTC) P2B11, P2B13, P2B15, P2B17, P2B19, P2B1B, P2B1D, and/or P2B1F stored in the powertrain control module (PCM) after various fuel system repairs. This may be due to incorrect learned values in the PCM. To correct the condition, allow the engine to idle for at least 6 minutes with the engine at normal operating temperature. Clear DTCs and retest. PCM replacement is not necessary for this condition.
SSM 506362022-03-29. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE; ENGINE AND ENGINE COOLING; EQUIPMENT. 2011-2022 F-Super Duty and 2016-2023 F-650/F-750 vehicles equipped with a 6.7L engine may exhibit an elevated idle condition. During prolonged idle time, vehicles may experience this elevated idle to reduce unburned hydrocarbons from the SCR. The powertrain control module estimates hydrocarbon levels in the SCR and may increase idle speed to remove them. Idle speed will be increased to 1000 RPM for ambient temperatures near 26°C (80°F) and may increase to 1200 RPM at -40 °C (-40°F). Vehicles may exhibit exhaust smoke and diesel exhaust fluid smell during elevated idle condition. Exhaust smoke and smell condition will not affect reliability or durability of the engine. Power take-off (PTO) use and idle set point control will disable elevated speed. It is required that the operator monitor the vehicle and adhere to any Exhaust Filter warning messages.
TSB 22-20892022-03-15. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN; UNKNOWN OR OTHER. Some 2015-2022 F-150, 2017-2022 F-Super Duty and 2018-2022 Expedition/Navigator vehicles may exhibit poor air conditioning (A/C) performance, loss of airflow and/or engine cooling fans running continuously from high A/C pressures. This concern may be from the evaporator freezing up due to the evaporator temperature sensor being biased. To correct the condition, follow the Service Procedure steps to replace the evaporator temperature sensor.
SSM 505642022-03-08. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Some 2020-2022 F-Super Duty vehicles equipped with a 6.7L engine may exhibit an illuminated malfunction indicator lamp (MIL), lack of power, and/or excessive turbo noise during operation, with diagnostic trouble codes (DTC) P003A, P0045, P0046, P0047, P0048, P0234, P0237, P0238, P132A, P2564, P2565, P2598, P259E, and/or P259F stored in the powertrain control module. If Workshop Manual (WSM) diagnostics lead to turbocharger variable vane actuator replacement, service part LC3Z-9G488-A has been released for service. Replacement of the turbocharger assembly is no longer required.
SSM 504482022-02-04. Service bulletin. FUEL SYSTEM, DIESEL; POWER TRAIN; ENGINE AND ENGINE COOLING:ENGINE:DIESEL. Some 2017-2022 F-Super-Duty vehicles equipped with a 6.7L diesel engine may exhibit a hard start, lack of power and/or runs rough concern with an illuminated malfunction indicator light (MIL) and diagnostic trouble codes (DTCs) P0087 and/or P008A. This may be due to low fuel level or fuel gelling in cold ambient temperatures. If no root cause is determined after normal Powertrain Control/Emissions Diagnosis (PC/ED) pinpoint test MA, recommend that the customer use a different brand of fuel and use Motorcraft® PM-23-A Diesel Fuel Anti-Gel and Performance Improver. Inform the customer that bio-diesel blended fuels have a higher occurrence of fuel gelling. Fuel gelling and or low fuel conditions causing a P0087 and/or P008A is not covered under warranty.
SSM 503862022-02-04. Service bulletin. ENGINE AND ENGINE COOLING. Some 2020-2022 F-Super Duty vehicles equipped with a 6.2L or 7.3L gas engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P0339 stored in the powertrain control module (PCM) or the vehicle may exhibit a runs rough concern with no DTCs. This may be due to a concern with contamination on the crankshaft position (CKP) sensor. If pinpoint test JD in the Powertrain Control/Emissions Diagnosis (PC/ED) Manual leads to CKP sensor replacement, inspect the sensor for contamination and document the results in the warranty claim. Use causal part 6C315 and utilize labor operation 12650D57D in the Service Labor Time Standards (SLTS) Manual.
TSB 21-24042022-02-04. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE. Some 2015-2021 F-150, 2017-2021 Super Duty and 2018-2021 Expedition/Navigator vehicles may exhibit poor air conditioning (A/C) performance, loss of airflow and/or engine cooling fans running continuously from high A/C pressures. This concern may be from the evaporator freezing up due to the evaporator temperature sensor being biased. To correct the condition, follow the Service Procedure steps to replace the evaporator temperature sensor.
SSM 503422021-12-26. Service bulletin. ENGINE AND ENGINE COOLING. Some 2020-2022 F-Super Duty vehicles equipped with a 6.7L engine may experience a lack of power due to snow packing of the engine air cleaner when operating in extremely snowy conditions. Diagnostic trouble code (DTC) P1548 may be present in the powertrain control module (PCM). A heavy snow environment pre-filter service kit (service part LC3Z-9K635-AA) is now available for use but is not a warrantable item. It is recommended that the service kit be removed at temperatures greater than 50°F (10°C) and reinstall in subsequent winter seasons in order to maintain optimal vehicle performance.
SSM 503232021-12-26. Service bulletin. ENGINE AND ENGINE COOLING. Some 2017-2022 F-Super Duty and 2016-2022 F-650/F-750 with 6.7L diesel engines, 2015-2019 Transit with 3.2L diesel engines and 2018-2021 F-150 with 3.0L diesel engines may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P206C in the powertrain control module (PCM). Review of repair data supports that P206C is often the result of incorrect diesel exhaust fluid (DEF) concentration. Per Powertrain Control/Emissions Diagnosis (PC/ED) Pinpoint Test (PPT) RJ, a DEF concentration reading below 28% will set P206C and cause vehicle derate. If low concentration is suspected, drain fluid and replace with known good DEF before replacing any parts. Low concentration of DEF is not a warrantable condition.
SSM 503062021-12-07. Service bulletin. ENGINE AND ENGINE COOLING. Some 2018-2021 EcoSport, Expedition, Navigator; 2019-2021 Ranger; 2020-2021 Escape, Corsair, Explorer, Transit; 2021 Bronco, Bronco Sport, Edge, Nautilus, F-150, Mustang; 2019-2022 Transit Connect; 2020-2022 Aviator, F-Super Duty; and 2022 Maverick vehicles may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P0496, P0456, P0455, P04F0, and/or P0451. Ford has tested returned EVAP canister purge valves and found them to be fully functional. Prior to replacing the canister purge valve or other EVAP components, perform the following tests using the Ford Diagnosis and Repair System (FDRS) Scan Tool: Full System EVAP Leak Test - FDRS Location: TOOLBOX > PCM > PCM - Evap Emissions System Test and the EVAP Purge Valve Leak Test - FDRS Location: TOOLBOX > PCM > Evap Emission System Toolbox > CPV Check.
TSB 21-23082021-09-30. Service bulletin. ENGINE. Some 2020-2021 F-Super Duty vehicles equipped with a 6.7L engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P0315, P054F and/or P02ED stored in the powertrain control module (PCM). This may be due to the software in the PCM. To correct the condition, follow the Service Procedure to reprogram the PCM.
SSM 501552021-09-28. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Some 2021-2022 F-Super Duty vehicles equipped with a 6.2L or 7.3L engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P0106 stored in the powertrain control module (PCM) after key-off transportation of the vehicle to higher altitudes. To correct the condition, clear the DTCs, cycle the ignition to OFF, cycle the ignition to ON, wait ten seconds, cycle the ignition to OFF, wait ten seconds, then start the engine. If the condition remains, refer to the Powertrain Control/Emissions Diagnosis (PC/ED) Manual for diagnostics.
TSB 21-22572021-09-02. Service bulletin. ENGINE AND ENGINE COOLING. Some 2021-2022 F-Super Duty/F-650/F-750 vehicles equipped with a 6.7L engine and built on or after 15-Apr-2021, with less than 300 miles (483 km), may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P20E8 and/or P208B stored in the powertrain control module (PCM). This may be due the reductant pump and heater assembly losing prime during extended vehicle storage. To correct the condition, follow the Service Procedure to prime the reductant pump and heater assembly.
TSB 21-21832021-07-01. Service bulletin. ENGINE AND ENGINE COOLING. Some 2021 F-Super Duty and 2021-2022 F-650/F-750 vehicles equipped with a 6.7L engine and built on or after 15-Apr-2021, with less than 300 miles (483 km), may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P20E8 and/or P208B stored in the powertrain control module (PCM). This may be due the reductant pump and heater assembly losing prime during extended vehicle storage. To correct the condition, follow the Service Procedure to prime the reductant pump and heater assembly.
SSM 498052021-06-01. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE COOLING. Some 2011-2021 vehicles equipped with a diesel engine may have engine oil in the exhaust after turbocharger replacement for various reasons. To correct the condition, remove the exhaust and stand the exhaust up with the turbocharger inlet side facing down using a suitable drain pan. Allow the exhaust to drain for at least 24 hours and reinstall. Do not perform a manual exhaust regeneration.
SSM 497032021-03-31. Service bulletin. ENGINE AND ENGINE COOLING. Some 2020-2021 F-Super Duty vehicles equipped with a 6.7L engine may exhibit an illuminated malfunction indicator lamp (MIL) with only diagnostic trouble code (DTC) P0315 stored in the powertrain control module (PCM). If no drivability concerns are present, clear the DTC and retest. If the DTC returns, perform normal diagnostics per the Powertrain Control/Emissions Diagnosis (PC/ED) Manual. If the DTC does not return, inform the customer that Ford is developing a PCM software fix that is expected in June, 2021. Advise the customer that vehicle durability is not affected by the condition and they can continue to drive the vehicle. Schedule a follow up appointment for repair in June, 2021. Monitor OASIS for updates.
SSM 496862021-03-31. Service bulletin. ENGINE AND ENGINE COOLING. Some 2020-2021 F-Super Duty vehicles equipped with a 6.7L engine may experience a lack of power due to snow packing of the engine air cleaner when operating in extremely snowy conditions. Diagnostic trouble code (DTC) P1548 may be present in the powertrain control module (PCM). A heavy snow environment pre-filter service kit (service part LC3Z-9K635-AA) is now available for use but is not a warrantable item. It is recommended that the service kit be removed at temperatures greater than 50F (10C) and reinstall in subsequent winter seasons in order to maintain optimal vehicle performance. The service kit instructions mention that air filter FA-2031 is required, however the heavy snow environment pre-filter service kit can be used with either engine air filter FA-1951, or FA-2031 once it is available.
SSM 493932021-01-05. Service bulletin. ENGINE; ELECTRICAL SYSTEM; POWER TRAIN. Some 2021 F-Super Duty vehicles equipped with a 6.2L or 7.3L engine and Explorer/Police Interceptor Utility vehicles equipped with a 3.3L engine may exhibit an illuminated malfunction indicator (MIL) with diagnostic trouble code (DTC) P0106 stored in the powertrain control module (PCM) while in transport mode, especially when operated in higher altitudes. To correct the condition, clear the DTCs and deactivate transport mode. Refer to Workshop Manual (WSM), Section 419-10 > General Procedures. Before starting the engine in the procedure, cycle the ignition to OFF, cycle the ignition to ON, wait ten seconds, cycle the ignition to OFF, wait ten seconds, then start the engine. If the condition remains, refer to the Powertrain Control/Emissions Diagnosis (PC/ED) Manual for diagnostics.
SSM 494162021-01-04. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; POWER TRAIN. Some 2020-2021 F-Super Duty vehicles equipped with a 6.2L or 7.3L gas engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P0339 stored in the powertrain control module (PCM) or the vehicle may exhibit a runs rough concern with no DTCs. This may be due to a concern with contamination on the crankshaft position (CKP) sensor. If pinpoint test JD in the Powertrain Control/Emissions Diagnosis (PC/ED) Manual leads to CKP sensor replacement, inspect the sensor for contamination and document the results in the warranty claim. Use causal part 6C315 and utilize labor operation 12650D57D in the Service Labor Time Standards (SLTS) Manual.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.