Parts for your 2019 Ford Escape-Temperature sensors

2019 Ford Escape temperature sensors — what they do and when to replace them

Temperature sensors are absolutely used on the 2019 Ford Escape. Ford’s service literature and wiring diagrams for the 2019 Escape/Kuga platforms, along with standard OBD‑II data items, confirm several temperature inputs to the powertrain control module and HVAC system. These include the engine coolant or cylinder head temperature sensor, intake air temperature (often built into the MAF on EcoBoost engines), ambient air temperature for the outside reading and climate control, transmission fluid temperature, and A/C evaporator temperature. Technical references: Ford Workshop Manual (engine controls and cooling system sections), Motorcraft wiring diagrams, and SAE J1979 OBD‑II PIDs used by scan tools on the 2019 Escape.

On this model, temperature sensors help the car warm up smoothly, keep the engine in its happy zone, and protect it under load. The engine coolant or head temperature input steers fuel trims, ignition timing, radiator fan speed, and overheat protection. Intake air temperature helps the ECU manage turbo boost and fuelling. The ambient sensor feeds the outside temp display and climate logic, while the evaporator sensor prevents the A/C from icing up. Transmission fluid temperature shapes shift strategy and thermal protection.

They’re not a scheduled replacement item, but they do benefit from a bit of care. During servicing, it’s smart to:

• Scan live data stone-cold, ECT/CHT, IAT and ambient should read close to outside temperature.
• Inspect connectors for green crust, oil wicking, or broken clips, and check harness routing near hot or moving parts.
• Keep the cooling system healthy — correct coolant spec and no leaks around the thermostat housing or sensor boss.
• If the IAT is part of the MAF, only clean it with MAF‑safe cleaner, don’t touch the element.

Common hints a temperature sensor is on the fritz include hard cold starts, the radiator fans roaring constantly, a rich fuel smell, erratic temp gauge or outside temp, A/C that quits then returns, and warning lights with codes like P0117/P0118 (coolant temp) or P0073 (ambient). Replacement is usually quick, but always depressurise and cool the system before swapping a coolant sensor, fit a quality part (Motorcraft or equivalent), and bleed the cooling system properly to avoid air pockets. If a scan shows nonsense readings that don’t match reality, that’s the cue to test the sensor circuit and replace as needed.

Popular questions

Where is the engine temperature sensor on a 2019 Escape?
Depending on the engine (1.5L or 2.0L EcoBoost), the primary temp sender is typically threaded into the thermostat housing or cylinder head, often tucked under the intake side. Access can be tighter on turbo models because of intake plumbing. A quick VIN check against Ford’s parts catalogue or the workshop manual will pinpoint the exact spot on that specific build.

Does the 2019 Escape use a coolant temp sensor or a cylinder head temp sensor?
Ford commonly uses a cylinder head temperature (CHT) sensor on EcoBoost engines, and many variants also report an engine coolant temperature (ECT) value to the ECU and gauge. The powertrain computer uses these signals to manage fuelling, timing, and fan operation. Which one is physically fitted and used for which function can vary by engine code, but the vehicle always relies on temperature inputs.

What does it cost to replace a temperature sensor?
In Australia and New Zealand, an engine temp sensor typically runs about $60–$150 for the part, with 0.5–1.0 hours of labour depending on access. Ambient air sensors are cheaper ($30–$90). If the IAT is integrated into the MAF, the assembly is more, often $180–$400. A proper diagnosis first can save replacing the wrong bit.