The Ford 10R80 is a 10-speed automatic transmission designed for longitudinal rear-wheel-drive and four-wheel-drive applications. It uses a torque converter, four planetary gearsets and electronic-hydraulic control to provide smooth shifting across a wide ratio range.
Specification: 10-speed automatic • Ford 10R80 • Longitudinal installation • RWD / 4WD • Torque converter with lock-up clutch • Electronic-hydraulic control • 4.696:1 first gear • 0.636:1 tenth gear • MERCON ULV fluid.
The 10R80 is fitted to selected Ford and Lincoln vehicles, including the F-150, Mustang, Ranger, Bronco, Expedition, Transit and Navigator. The VIN, complete transmission number, OEM gearbox code and individual component identification should always be confirmed before ordering replacement parts.
Common Faults
Common problems include harsh or delayed shifts, valve-body and solenoid faults, hydraulic pressure loss, clutch wear and CDF drum/sleeve failure. Symptoms can include harsh engagement, shift flare, incorrect gear ratios and transmission warning messages.
Diagnosis should include fault codes, software/adaptations, fluid condition, valve-body operation, hydraulic pressure and CDF drum condition before replacing internal components.
Common Fault Codes
| Fault Code | Description |
| P0729 | Gear 6 incorrect ratio |
| P0731 | Gear 1 incorrect ratio |
| P0732 | Gear 2 incorrect ratio |
| P0733 | Gear 3 incorrect ratio |
| P0734 | Gear 4 incorrect ratio |
| P0735 | Gear 5 incorrect ratio |
| P0751 | Shift solenoid A performance |
| P0756 | Shift solenoid B performance |
| P0761 | Shift solenoid C performance |
| P0772 | Shift solenoid E stuck on |
| P2704 | Friction element E apply-time fault |