P0218 on Ford
Transmission Over Temperature Condition
P0218 on Ford vehicles indicates transmission over temperature condition. Au7o has documented this code across 2 Ford models — most commonly on E-Series, Mustang. This code means the transmission fluid has gotten too hot and exceeded a safe temperature limit. The transmission's temperature sensor reported an overheat condition to the computer, which can be caused by an actual overheating situation or by a faulty sensor reporting a false reading. Excessive heat is one of the most damaging things for an automatic transmission, breaking down the fluid and accelerating wear, so this code should be addressed promptly. The vehicle may enter a reduced-power or limp mode to protect the transmission. Typical repair costs on Ford range from $50 to $2,500, depending on the specific model and root cause.
Common Causes of P0218
- •Low or old/degraded transmission fluid
- •Faulty transmission fluid temperature sensor
- •Clogged or restricted transmission cooler or lines
- •Heavy load/towing or stop-and-go driving overheating the fluid
- •Slipping clutches generating excess heat
- •Faulty cooling fan or radiator (shared cooling) issues
- •Internal transmission wear or restriction
P0218 on Ford by Model
Ford E-Series(1 issue)
- Transmission Cooler Line Rubber Hose Degradation and Leak2000-2014
E-Series vans use rubber transmission cooler hose sections that connect the steel lines to the radiator-mounted transmission cooler. These rubber sections harden, crack, and leak transmission fluid. The leak is often slow enough that the fluid level drops gradually, causing the transmission to slip before the leak is noticed. The rubber hoses are routed near the exhaust manifold where heat accelerates degradation.
Ford Mustang(1 issue)
- Shelby GT500 TR-9070 DCT Overheating, Derate, and Cooler-Line Failures (Track Use)2020-2022
The 2020-2022 GT500's Tremec TR-9070 7-speed dual-clutch transmission overheats under sustained track use, throwing 'Transmission Too Hot' and 'Clutch Pack Too Hot' messages and derating the car (forced short-shifting / reduced output) once fluid temps climb, especially above ~90F ambient. Compounding it, the factory DCT cooler hard lines and seals are a known weak point and are widely reported to leak, risking fluid loss. Because Ford located the temperature sensor on the differential rather than the transmission itself, the DCT can heat-soak without obvious warning until it derates.
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View P0218 across all makes →Frequently Asked Questions
What does P0218 mean on Ford?▼
P0218 stands for "Transmission Over Temperature Condition." This code means the transmission fluid has gotten too hot and exceeded a safe temperature limit. The transmission's temperature sensor reported an overheat condition to the computer, which can be caused by an actual overheating situation or by a faulty sensor reporting a false reading. Excessive heat is one of the most damaging things for an automatic transmission, breaking down the fluid and accelerating wear, so this code should be addressed promptly. The vehicle may enter a reduced-power or limp mode to protect the transmission. On Ford specifically, this code is documented across 2 models.
What causes P0218 on Ford vehicles?▼
Common causes on Ford: Low or old/degraded transmission fluid, Faulty transmission fluid temperature sensor, Clogged or restricted transmission cooler or lines, Heavy load/towing or stop-and-go driving overheating the fluid, Slipping clutches generating excess heat. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0218 on a Ford?▼
Repair costs on Ford range from $50 to $2,500, depending on the specific model and root cause.
Which Ford models have P0218 documented?▼
Au7o has documented P0218 on 2 Ford models: E-Series, Mustang.