P0771 on Ford
Shift Solenoid E Performance/Stuck Off
P0771 on Ford vehicles indicates shift solenoid e performance/stuck off. Au7o has documented this code across 2 Ford models — most commonly on Maverick, Transit Connect. This code indicates a performance problem with shift solenoid 'E', or that it appears stuck off — meaning the transmission isn't getting the gear engagement or behavior the computer commanded from that solenoid. Shift solenoids route hydraulic fluid to apply clutches and bands for specific gears, and on many transmissions solenoid E is tied to the torque converter clutch or a specific shift element. When the resulting action doesn't match the command, this code sets, often producing harsh or missing shifts, slipping, or a transmission limp mode. It generally points to the solenoid, fluid condition, or the valve body. Typical repair costs on Ford range from $150 to $6,500, depending on the specific model and root cause.
Common Causes of P0771
- •Stuck or failed shift solenoid E
- •Low, dirty, or degraded transmission fluid
- •Clogged valve body passages or sticking valve
- •Open, shorted, or chafed solenoid wiring
- •Corroded or loose transmission connector
- •Internal hydraulic leak or worn seals
- •Faulty transmission control module (TCM)
P0771 on Ford by Model
Ford Maverick(1 issue)
- 8F35 Transmission Shudder/Buck/Jerk Below 35 mph and Output Carrier Bearing Wear (Early 2022 Builds)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.
Ford Transit Connect(1 issue)
- 8F35 8-Speed Automatic Transmission Shudder and Failure2019-2023
The 2019-2023 Ford Transit Connect equipped with the 8F35 8-speed automatic transmission experiences transmission shuddering, harsh engagements, slipping, and premature failure. Ford issued a Technical Service Bulletin for 2019-2021 Transit Connect vehicles built before December 20, 2021 with the 8F35 transmission addressing slipping and harsh engagement concerns. FordTransitUSAForum.com documents a 2019 Transit Connect XL 8F35 transmission failure at the 75,000 mile mark. Eng-Tips.com engineering forums discuss the inherent shudder issue in the 8F35 torque converter clutch. Earlier Transit Connect models with the 6F35 transmission also had recall campaigns (2013-2021 models). The transmission issues are exacerbated by commercial use patterns - frequent stops, loaded cargo, and city driving accelerate wear on the torque converter clutch and internal clutch packs.
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View P0771 across all makes →Frequently Asked Questions
What does P0771 mean on Ford?▼
P0771 stands for "Shift Solenoid E Performance/Stuck Off." This code indicates a performance problem with shift solenoid 'E', or that it appears stuck off — meaning the transmission isn't getting the gear engagement or behavior the computer commanded from that solenoid. Shift solenoids route hydraulic fluid to apply clutches and bands for specific gears, and on many transmissions solenoid E is tied to the torque converter clutch or a specific shift element. When the resulting action doesn't match the command, this code sets, often producing harsh or missing shifts, slipping, or a transmission limp mode. It generally points to the solenoid, fluid condition, or the valve body. On Ford specifically, this code is documented across 2 models.
What causes P0771 on Ford vehicles?▼
Common causes on Ford: Stuck or failed shift solenoid E, Low, dirty, or degraded transmission fluid, Clogged valve body passages or sticking valve, Open, shorted, or chafed solenoid wiring, Corroded or loose transmission connector. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0771 on a Ford?▼
Repair costs on Ford range from $150 to $6,500, depending on the specific model and root cause.
Which Ford models have P0771 documented?▼
Au7o has documented P0771 on 2 Ford models: Maverick, Transit Connect.