Pinpoint Test C : Transmission Overheating

WARNING: This page is about a different car, the 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

Normal Operation and Fault Conditions
- Bent or crushed transmission fluid cooler tubes
  - INSPECT the transmission fluid cooler tubes for kinks and damage. INSTALL new components as necessary. REFER to: Transmission Cooling - Component Location .
  - INSPECT the transmission fluid cooler coolant hoses for damage. INSTALL new components as necessary. REFER to: Transmission Cooling - Component Location .
- Damaged transmission fluid cooler
  - INSPECT the transmission fluid cooler for damage. INSTALL new components as necessary. REFER to: Transmission Cooling - Component Location .
- System leaks
  - INSPECT the transmission fluid cooler and transmission fluid cooler tubes for leaks. INSTALL new components as necessary. REFER to: Transmission Cooling - Component Location .
- Excessive vehicle or towing loads, severe vehicle use
  - REFER to the Owner's Literature for more information on vehicle load, GVW and trailer towing.
- Incorrect transmission fluid level
  - CHECK the transmission fluid level. ADJUST the transmission fluid level as necessary. REFER to: Transmission Fluid Level Check .
- Incorrect transmission fluid type
  - If any transmission fluid or additive other than the recommended fluid has been added to the transmission, CARRY OUT the transmission fluid exchange. REFER to: Specifications (6R80) . REFER to: Specifications (10R80) . REFER to: Transmission Fluid Exchange (6R80) . REFER to: Transmission Fluid Exchange (10R80) .
- Transmission fluid condition
  - COLLECT a transmission fluid sample and inspect it for debris or contamination. REFER to: Preliminary Inspection (6R80) . REFER to: Preliminary Inspection (10R80) .
- Engine overheating
  - CHECK the engine cooling system for proper operation. For 2.7L EcoBoost engine, REFER to Engine Cooling . For 3.3L Duratec - V6 engine, REFER to Engine Cooling . For 3.5L EcoBoost engine, REFER to Engine Cooling For 5.0L 32V TiVCT engine, REFER to Engine Cooling . For 3.0L Diesel engine, REFER to Engine Cooling
- Transmission cooling system clogged or restricted
  - CARRY OUT the Transmission Fluid Cooler Backflushing and Cleaning procedure. If transmission fluid cooler flow is low after backflushing, INSTALL new components as necessary. REFER to: Transmission Fluid Cooler - Backflushing and Cleaning - 3.3L Duratec-V6, Raptor . REFER to: Transmission Fluid Cooler - Backflushing and Cleaning - 2.7L EcoBoost (238kW/324PS)/3.0L Power Stroke Diesel/3.5L EcoBoost (272kW/370PS)/5.0L 32V Ti-VCT .
- Transmission fluid cooler bypass valve malfunctioning (3.3L and Raptor)
  - INSTALL a new transmission fluid cooler bypass valve. For Raptor, REFER to: Cooler Bypass Valve - Raptor . For 3.3L Duratec - V6 engines, REFER to: Cooler Bypass Valve - 3.3L Duratec-V6 .
- Transmission fluid heater coolant control valve malfunctioning
  - INSTALL a new transmission fluid heater coolant control valve. For 2.7L EcoBoost engines, REFER to: Transmission Fluid Heater Coolant Control Valve . For 3.3L Duratec - V6 engines, REFER to: Transmission Fluid Heater Coolant Control Valve . For 3.5L EcoBoost engines, REFER to: Transmission Fluid Heater Coolant Control Valve . For 5.0L 32V TiVCT engines, REFER to: Transmission Fluid Heater Coolant Control Valve . For 3.0L Diesel engines, REFER to: Transmission Fluid Heater Coolant Control Valve .
- Internal transmission concerns
  - RESOLVE any transmission performance diagnostic trouble codes (DTCs) or symptoms, especially those related to the TCC or clutch applications. REFER to: DTC Chart and Pinpoint Tests - 3.3L Duratec-V6 . REFER to: DTC Chart and Pinpoint Tests - 2.7L EcoBoost (238kW/324PS) . REFER to: DTC Chart and Pinpoint Tests - 3.0L Power Stroke Diesel . REFER to: DTC Chart and Pinpoint Tests - 3.5L EcoBoost (272kW/370PS) . REFER to: DTC Chart and Pinpoint Tests - Raptor . REFER to: DTC Chart and Pinpoint Tests - 5.0L 32V Ti-VCT .
  - INSPECT the internal transmission components for wear or damage. INSTALL new components as necessary. REFER to: Transmission (6R80) . REFER to: Transmission (10R80) .
Possible Sources
- Damaged or restricted transmission fluid cooler tubes
- Damaged or restricted transmission fluid cooler
- Incorrect transmission fluid level or type
- Transmission fluid cooler bypass valve
- Transmission fluid heater coolant control valve
- Internal transmission components
Diagnostic steps are not provided for this symptom or DTC. REFER to: Diagnostic Methods