P0727 on 2022 Ford Maverick (XL, XLT, Lariat) — Engine Speed Input Circuit No Signal
1 vehicles · 1 makes · $150-$6,500 repair
How to diagnose and fix P0727: most-reported vehicles
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Ford Maverick · 2022–2022
The 2.0L EcoBoost Maverick uses the same 8F35 eight-speed transmission found in other Ford applications (Edge, Nautilus, Transit Connect, Escape), where vehicles equipped with the 8F35 transmission may exhibit a shudder/buck/jerk while driving up to 35 mph (57 km/h) due to software in the powertrain control module (PCM) — this is documented in TSB 21-2389 for the Edge/Nautilus and is widely reported by Maverick owners as carry-over behavior. A separate but related condition involves transmission slipping concerns, harsh engagements and various clutch DTCs (sometimes with torque converter clutch DTCs), caused by worn needle bearings in the output planet carrier assembly (TSB 22-2281). Per the TSB, only 8F35 units built on or before Dec. 20, 2021 are flagged — which in practice means early 2022 model year Mavericks. Drivers typically feel a low-speed shudder under light throttle, harsh 2-3 upshifts on hills, or a flare on the 4-5 shift.
Common Symptoms
- Shudder, buck or jerk between 15-35 mph
- Harsh 2-3 upshift, especially on inclines
- Slip or flare on 4-5 upshift under light throttle
- Harsh engagement when shifting D↔R
- Metallic debris in transmission pan
- Delayed engagement when cold
How to Fix
The correction is to follow the Service Procedure steps to reprogram the PCM and the transmission solenoid strategy (labor op 212389A, ~0.9 hrs). After the adaptive strategy is reset, the computer begins a relearning process that may result in firmer than normal upshifts and downshifts for several days. If shudder persists after the reflash, the planet carrier bearings may need overhaul — early 2022 EcoBoost Mavericks built with 8F35 units before Dec. 20, 2021 are flagged for output planet carrier wear; shops keep finding slipping shifts, harsh D↔R, and metal glitter in the pan. A full overhaul per TSB 22-2281 is 16.4 hrs of labor and includes the output planetary carrier, overhaul seal kit, sun shell, and related hardware; replacement of solenoid pack/valve body and torque converter is commonly needed. Reflash cost is ~$150; a full overhaul outside warranty typically runs $3,500-$6,500, though full unit replacement can reach $8,000+.
Sources for this issue (1)
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P0727 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 P0727 mean?
P0727 stands for "Engine Speed Input Circuit No Signal." This code indicates the transmission computer is not receiving an engine speed (RPM) signal that it needs to manage shifting and torque converter operation. The TCM compares engine speed against transmission input/output speeds to control shift timing and converter lockup. A missing signal can cause erratic shifting, harsh engagement, or the transmission entering a fail-safe limp mode.
What are the most common causes of P0727?
The most common causes of P0727 are: Faulty engine speed/crankshaft position sensor, Open or shorted wiring in the speed signal circuit, Corroded or loose connectors, Loss of signal communication between PCM and TCM, Damaged reluctor/tone ring, TCM or PCM internal fault. The specific cause varies by vehicle.
How much does it cost to fix P0727?
Repair costs for P0727 range from $150 to $6,500, depending on the vehicle and root cause.
Which vehicles are affected by P0727?
Au7o has documented P0727 across 1 vehicle models from 1 manufacturers: Ford.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.