P07F6 on Lincoln: How to Diagnose & Fix
Gear 9 Incorrect Ratio
1 Lincoln model · 1 documented issue
P07F6 on Lincoln by model: symptoms, diagnosis and fix
Some 2020-2023 Lincoln Aviators equipped with a 10R60 and built on or before December 23, 2022, or a 10R80 MHT and built on or before August 15, 2022, may have harsh or delayed engagement and/or harsh or delayed shifts. Ford TSB 22-2428 says the condition may involve PCM/TCM software, the transmission solenoid-ID strategy, sticking main-control valves, or axial movement of the CDF clutch-cylinder sleeve. The complaint may occur with or without a malfunction indicator and the bulletin's listed transmission DTCs. The symptom alone does not select a valve body, CDF cylinder, or complete transmission.
Common Symptoms
- Harsh engagement
- Delayed engagement
- Harsh shift
- Delayed shift
- Malfunction indicator with a bulletin-listed transmission DTC
How to Fix
Have a Ford/Lincoln-capable technician confirm the transmission and build date, retrieve PCM/TCM faults, and follow TSB 22-2428 in order. The bulletin begins with available PCM/TCM programming and an adaptive-learning drive cycle, then uses the stored faults and clutch behavior to select an accelerated main-control break-in routine. If the condition remains, the procedure can require main-control overhaul and, only after the bulletin's later tests fail, condition-specific internal transmission repair. Parts and coverage must be selected by VIN and the actual failed step.
Call to confirm they can assess your vehicle and perform the stated work. Search results do not confirm qualification, eligibility or coverage.
Owner tips & cautions
- TipRecord the exact shift or engagement event and ask for the PCM/TCM fault report plus the TSB decision-tree step that failed before approving internal transmission work.
- WarningDo not order a valve body or CDF part from harsh shifting alone; Ford's procedure can resolve the condition through programming, adaptive learning, or clutch cycling before parts are selected.
Sources for this issue (1)
P07F6 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P07F6 mean on a Lincoln?
P07F6 stands for "Gear 9 Incorrect Ratio." Generic transmission code in the extended gear-ratio series (P076F = gear 7, P07D9 = gear 8, P07F6 = gear 9, P07F7 = gear 10), used on 9- and 10-speed automatics. The transmission control module compares input shaft speed to output shaft speed while 9th gear is commanded; if the calculated ratio does not match the expected value, it sets this code. Symptoms can include slipping, flaring or harsh shifts at highway speeds, failure to reach top gears, or the transmission dropping into limp mode. Because it can indicate internal clutch wear, do not just clear it and keep driving — have the fluid condition and the shift data checked. On Lincoln it is documented across 1 model: Aviator.
What are the most common causes of P07F6?
The most common causes of P07F6 are: Low, burnt, or contaminated transmission fluid, Worn or slipping clutch pack for the affected gear, Failed or sticking shift solenoid, or a valve body/solenoid pack fault, Input or output speed sensor fault, or damaged speed sensor wiring, giving a false ratio, Internal mechanical wear or debris in the transmission, Transmission control module fault or software needing an update (verify mechanical condition first). The specific cause varies by vehicle.
How much does it cost to fix P07F6 on a Lincoln?
Repair costs vary widely with the root cause and Lincoln model; each issue on this page carries its own estimate where one is published.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.