Known Issues/P07F6/Lincoln

P07F6 on Lincoln

Gear 9 Incorrect Ratio

Moderate1 Lincoln model affectedSystem: Transmission

P07F6 on Lincoln vehicles indicates gear 9 incorrect ratio. Au7o has documented this code across 1 Lincoln model — most commonly on Aviator. Generic transmission code in the extended gear-ratio series (P076F = gear 7, P07F5 = 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.

Common Causes of P07F6

  • •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)

P07F6 on Lincoln by Model

Lincoln Aviator(1 issue)

  • 10R60/10R80 MHT Harsh or Delayed Engagement and Shifts (TSB 22-2428)2020-2023

    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.

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Frequently Asked Questions

What does P07F6 mean on Lincoln?▼

P07F6 stands for "Gear 9 Incorrect Ratio." Generic transmission code in the extended gear-ratio series (P076F = gear 7, P07F5 = 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 specifically, this code is documented across 1 model.

What causes P07F6 on Lincoln vehicles?▼

Common causes on Lincoln: 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. Specific causes vary by model and year — see the per-model sections below.

How much does it cost to fix P07F6 on a Lincoln?▼

Repair costs vary widely depending on the root cause and specific Lincoln model.

Which Lincoln models have P07F6 documented?▼

Au7o has documented P07F6 on 1 Lincoln model: Aviator.

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