Symptom Chart - Transmission Cooling
WARNING: This page is about a different car, the 2015 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
| Symptom | Possible Sources | Action |
|---|---|---|
| Transmission overheating | Clogged transmission fluid cooler or transmission fluid cooler tubes or hoses Bent or crushed transmission fluid cooler tubes or hoses |
INSPECT the transmission fluid cooler and the transmission fluid cooler tubes for damage or plugging. INSTALL new components as necessary. |
| Transmission cooling system restricted | CARRY OUT the Transmission Fluid Cooler Backflushing and Cleaning. REFER to: Transmission Fluid Cooler - Backflushing and Cleaning . | |
| Excessive vehicle or towing loads, severe vehicle use | REFER to the Vehicle Specification Manual for load and GVW information. REFER to the Owner's Literature. | |
| Incorrect transmission fluid level | CHECK and if necessary ADJUST the transmission fluid to the correct level. REFER to: Transmission Fluid Level Check . | |
| System leaks | INSPECT transmission fluid cooler and transmission fluid cooler lines and hoses for leaks. SERVICE as required. | |
| Transmission fluid condition | CHECK transmission fluid condition. | |
| Incorrect transmission fluid type | REFER to: Specifications . | |
| Engine overheating | For 2.7L EcoBoost engine, REFER to: ENGINE COOLING . For 3.5L Duratec engine, REFER to: ENGINE COOLING . For 3.5L EcoBoost engine, REFER to: ENGINE COOLING . For 5.0L TiVCT engine, REFER to: ENGINE COOLING . | |
| Powertrain control system electrical inputs/outputs, vehicle wiring harnesses, PCM, TCC solenoid | CARRY OUT OBD test. REFER to the ENGINE CONTROLS - POWERTRAIN DTC CHARTS & DESCRIPTIONS (EXCEPT DIESEL & HYBRID) . | |
| Internal transmission concerns | REPAIR as necessary. | |
| Transmission fluid cooler bypass valve malfunctioning | INSTALL a new transmission fluid bypass valve. REFER to: Cooler Bypass Valve - 5.0L 32V Ti-VCT . | |
| Transmission fluid warmer engine coolant bypass valve malfunctioning | INSTALL a new transmission fluid warmer engine coolant bypass valve. REFER to: TRANSMISSION FLUID HEATER COOLANT CONTROL VALVE . | |
| Transmission fluid leak at radiator in-tank cooler | Transmission fluid cooler tubes-to-transmission fluid cooler fitting | REFER to Component Test . |