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Service bulletins for the 2020 Ford Transit

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.

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

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By component

By trouble code

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
SSM 543632025-11-13. Service bulletin. UNKNOWN OR OTHER; POWER TRAIN; ENGINE. Some 2021-2025 Expedition/Navigator/F-150/F-Super Duty/F-53 Motorhome/F59 Commercial Stripped Chassis/F-650/F-750/Transit vehicles equipped with a 2.7L/3.5L (non hybrid)/6.8L/7.3L engine and 2021-2026 E-Series may exhibit a rattle/scraping noise from the bellhousing area on start-up. Workshop Manual (WSM), Section 303-00 Engine System - General Information > Diagnosis and Testing and 303-06 > Starting System has been updated to address this condition. Additionally, WSM, Section 303-01 > Removal and Installation > Engine to Transmission Spacer Plate has been added to address this condition. Refer to the revised WSM sections for normal diagnosis.
SSM 542692025-10-08. Service bulletin. ENGINE. Some 2021-2025 Expedition/Navigator/F-150/F-Super Duty/F-53 Motorhome/F59 Commercial Stripped Chassis/F-650/F-750/Transit vehicles equipped with a 2.7L,3.5L EcoBoost (non-hybrid), 3.5L Cyclone, 6.8L or 7.3L engine, may exhibit a rattle/scraping noise from the bellhousing area on start-up. Workshop Manual (WSM), Section 303-00 Engine System - General Information > Diagnosis and Testing and 303-06 > Starting System has been updated. Additionally, WSM, Section 303-01 > Removal and Installation > Engine to Transmission Spacer Plate has been added to address this condition. Refer to the revised WSM sections for normal diagnosis.
TSB 25-23632025-08-07. Service bulletin. ENGINE. Some of the vehicles listed in the Model statement above may exhibit all of the following conditions: * Lack of air flow from inoperative blower motor * Open or damaged fuse F10 in the BJB This may be due to a damaged fuse F10 (40A) in the battery junction box (BJB). ** Model secton: all gas engine (non-BEV) ***** Legacy verbiage - will be removed after completing approvals ***** Some 2020-2024 Transit all gas engine (non-BEV) vehicles may exhibit a lack of air flow due to an inoperative heating, ventilation, and air conditioning (HVAC) blower motor. This may be due to a damaged fuse F10 (40A) in the battery junction box (BJB). To correct the condition, replace the fuse F10 (position 7 in the BJB). Replace the BJB and BJB harness only if it is required with the listed service replacement part.
SSM 537642025-05-21. Service bulletin. POWER TRAIN; ENGINE. Some 2020 Continental, 2020-2024 Edge/Nautilus, 2020-2025 Explorer/Aviator/Escape/Corsair/F-150/F-Super Duty/Ranger/Transit/E-Series, 2021-2025 Bronco, and 2022-2025 Maverick vehicles may require an engine cooling system flush to be performed for various concerns. Workshop Manual (WSM), Section 303-03 has been updated to eliminate the need to remove and install the radiator assembly to perform a radiator flush.
SSM 523352024-03-20. Service bulletin. ENGINE AND ENGINE COOLING. For 2015-2024 Ford and Lincoln vehicles equipped with turbocharged engines and customer concern of an engine oil leak, refer to Workshop Manual (WSM), Section 303-00 for oil leak inspection and testing methods. Ford has evaluated turbochargers replaced for oil leak symptoms and although oil may collect on the external surface of a turbocharger, it is extremely rare for a turbocharger assembly to be the root cause of the oil leak. Careful inspection of the turbocharger oil feed and drain tubes should be performed along with the recommended WSM procedures as needed. Warranty claims for turbocharger replacement going forward will be assessed.
TSB 23-20152023-01-31. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE AND ENGINE COOLING. 2021-2022 F-150 vehicles with 2.7L, 3.3L, 3.5L EcoBoost or 5.0L engines, 2020-2022 Transit vehicles with 3.5L Duratec/3.5L EcoBoost engines, 2023 Bronco with the 2.3L engine having charging system diagnostics performed in the Workshop Manual (WSM) may experience the generator voltage desired (GENVDSD) parameter identification (PID) missing from the powertrain control module (PCM) PID list in the Ford Diagnosis And Repair System (FDRS) scan tool. This may be due to a software parameter in the PCM. To correct the condition, follow the Service Procedure to reprogram the PCM.
SSM 509882022-08-15. Service bulletin. ENGINE AND ENGINE COOLING. Some 2018-2021 F-150 3.3L, 2020-2021 Explorer 3.3L, and 2020-2021 Transit 3.5L may experience an illuminated low oil pressure and malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P0521 stored in the powertrain control module (PCM) after a short block or long block replacement. This may be due to a design change of the engine oil pressure (EOP) sensor, which is not backwards compatible. To correct the condition, transfer the sensor from the original engine or replace the EOP sensor with GN1Z-9D290-D.
21L042022-06-10. Service bulletin. ENGINE; EQUIPMENT:OTHER:LABELS; FUEL SYSTEM, GASOLINE. Certain 2020-2021 Model Year Transit Vehicles Equipped with a 3.5L Ecoboost Engine - Fuel Filler Door E85 Label Removal .In all of the affected vehicles, the fuel tank filler door may incorrectly have an E85 fuel label installed on units that are not rated for E85 fuel. The use of E85 fuel in vehicles not rated for E85 fuel may cause a lean condition along with a Malfunction Indicator Lamp (MIL) and a P0172 Diagnostic Trouble Code (DTC). Continued driving with E85 fuel may lead to drivability symptoms including hard to start, rough idle, stalling, hesitation, surging, or lack of power.
21L042022-05-19. Service bulletin. ENGINE. Certain 2020-2021 Model Year Transit Vehicles Equipped with a 3.5L Ecoboost Engine - Fuel Filler Door E85 Label Removal - In all of the affected vehicles, the fuel tank filler door may incorrectly have an E85 fuel label installed on units that are not rated for E85 fuel. The use of E85 fuel in vehicles not rated for E85 fuel may cause a lean condition along with a Malfunction Indicator Lamp (MIL) and a P0172 Diagnostic Trouble Code (DTC). Continued driving with E85 fuel may lead to drivability symptoms including hard to start, rough idle, stalling, hesitation, surging, or lack of power.
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 21-23352021-10-05. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; UNKNOWN OR OTHER. Some 2020-2021 Transit vehicles may experience a pop/sizzle/crack noise from the exhaust. This may be due to water dripping on the exhaust from the evaporator drain tube. To correct the condition, follow the Service Procedure to extend the the length of the evaporator drain tube.
21B582021-09-30. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER; ENGINE. Certain 2020-2021 Model Year Transit Vehicles Equipped with 3.5L PFDI Engines Inactive Smart Acceleration Truncation Feature In all of the affected vehicles, the Smart Acceleration Truncation (SAT) feature is non-functional. The SAT feature is intended to provide common performance for an empty vehicle as would be expected for a fully loaded vehicle. The feature restricts the acceleration capability for empty vehicles where drivers utilize significant accelerator pedal input. When the SAT feature is non-functional, drivers who reach elevated torque/acceleration rates will not see the desired torque de-rate that the feature is expected to deliver.
SSM 498212021-06-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; ENGINE AND ENGINE COOLING. Some 2015-2021 Ford and Lincoln vehicles may exhibit an illuminated MIL with diagnostic trouble codes (DTC) P0011, P0012, P0014, P0015, P0016, P0017, P0018, P0019, P0021, P0022, P0024 and/or P0025. This may be due to small debris causing the VCT solenoid to stick. Before attempting any component diagnosis or replacement of the VCT solenoid, refer to Powertrain Control and Emissions Diagnosis (PC/ED) pinpoint test HK11 to cycle the affected VCT solenoid 10 times to attempt to clear the debris. For claiming, use causal part 6M280 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.
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.
20B352020-11-04. Service bulletin. EQUIPMENT; ENGINE; POWER TRAIN. Some of the affected all-wheel driver (AWD) vehicles were assembled with mismatched front to rear final drive gear ratios. AWD vehicles with mismatched gear ratios may exhibit front end shudder upon acceleration and/or the Traction Control System (TCS) may activate. If the TCS activates, an icon on the cluster advising the driver that the TCS is active may illuminate, leading to engine torque reduction to slow the vehicle. The transfer case clutch will continue to wear until AWD function becomes unavailable. Some of the affected rear wheel drive (RWD) vehicles were assembled with incorrect rear final drive gear ratios. Drive characteristics are not noticeably changed.
SSM 492852020-11-04. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE AND ENGINE COOLING. Some 2020 Transit vehicles equipped with a 3.5L Duratec and built on or before 22-Sep-2020 may exhibit an illuminated malfunction indicator lamp with any combination of the following diagnostic trouble codes (DTCs): P02EE, P02EF, P02F0, P02F1, P02F2, and/or P02F3. This may be due to the PCM strategy. Perform a keep alive memory (KAM) reset prior any diagnostics or repairs. The KAM reset clears the KAM to a default setting rather than zero. For claiming, use causal part 12A650 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.
SSM 492102020-10-06. Service bulletin. ENGINE AND ENGINE COOLING. Some 2009-2020 Ford and Lincoln vehicles equipped with turbochargers may exhibit an oil leak from the turbocharger oil supply or return tubes, O-rings or 6.7L pedestal gasket. Although oil may collect on the turbocharger, it is very rare for a turbocharger to leak oil. To isolate the source of the leak, refer to Workshop Manual (WSM), Section 303-00 General Information > Diagnosis and Testing > Engine > Engine Oil Leaks - Fluorescent Oil Additive Method procedure. When an oil leak is present at a turbocharger oil supply or drain tube, remove the affected oil tube and inspect for damage, and replace the O-ring seals, pedestal gasket or oil tube as required. Refer to WSM, Section 303-04. For claiming, use the affected oil tube or pedestal gasket as the causal part and applicable labor operations in Sections 6 and 9 of the Service Labor Time Standards (SLTS) Manual.
20B21-S12020-10-01. Service bulletin. ENGINE AND ENGINE COOLING. Certain 2020 Model Year Transit vehicles with 3.5L engines and F-150 / Police Interceptor Utility vehicles with 3.3L engines - Cylinder Head Replacement
SSM 490852020-09-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; ENGINE. Some 2020 Ford and Lincoln vehicles equipped with a TCU may exhibit incomplete user authorization, no authorization pop-up on the SYNC infotainment system, vehicle connectivity concerns, vehicle location disabled message and/or various FordPass/LincolnWay App command/control concerns. To correct these conditions, ensure that customer connectivity settings (CCS) are turned on in the SYNC system. If the concerns persist after CCS is turned on, turn CCS OFF, perform an ignition cycle, and turn CCS settings back on. After any CCS changes, force-close and relaunch the FordPass/ LincolnWay app on the customers phone. Once CCS is turned on, program the TCU to the latest IDS/FDRS version level. If the concern is still present, follow normal diagnostics in Workshop Manual (WSM), Section 415-00. Refer to PTS OASIS home page for TCU version identification. For claiming, use causal part 14G229.
20B212020-07-06. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. In all of the affected vehicles, there are shallow pressed valve seats in the cylinder heads. This may lead to a rough idle, engine misfires with a reduction in power/torque, and a check engine/wrench light illuminated.
20B21-A2020-05-05. Service bulletin. ENGINE AND ENGINE COOLING. In all of the affected vehicles, there are shallow pressed valve seats in the cylinder heads. This may lead to a rough idle, engine misfires with a reduction in power/torque and a check engine/wrench light illuminated.
19B42-S12020-02-04. Service bulletin. ENGINE AND ENGINE COOLING. In some of the affected vehicles, the incorrect rear climate control heater lines may be installed allowing contact between the heater lines and the drive shaft. This contact may cause an underbody noise concern, and if left uncorrected, may lead to loss of engine coolant.

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