Parts for your 2007 Ford Escape-Temperature sensors

2007 Ford Escape temperature sensors — what they do and when to replace them

Temperature sensors are absolutely fitted to the 2007 Ford Escape. Ford’s Workshop Manual (2005–2007 Escape/Mariner, Section 303 Cooling System) details the Engine Coolant Temperature (ECT) sensor and its diagnostics (DTCs like P0115–P0119, P0128), while Ford wiring information for Section 412 Climate Control shows the Ambient Air Temperature sensor. The Motorcraft parts catalogue also lists ECT, Intake Air Temperature (IAT), and Transmission Fluid Temperature (TFT) sensors for this model range. On the Hybrid, Ford specifies a Cylinder Head Temperature (CHT) sensor that the PCM uses much like the ECT. So yes — temperature sensors are integral to how this Escape runs and protects itself.

On the road, these sensors let the powertrain computer set fuelling and ignition timing from cold start to a hot summer’s day in traffic, switch the radiator fans on when needed, drive the temp gauge, and keep the air‑con behaving. If a sensor goes off the rails, the Escape can run too rich or too lean, chew through petrol, idle roughly, kick the fans on constantly, or even overheat.

There’s no fixed replacement interval — they’re changed on condition. During regular servicing, it’s worth checking for tell‑tales:

• Hard starts, poor economy, rough running once warm
• Temp gauge acting oddly or fans running all the time
• AC performance dropping away at idle
• Stored fault codes such as P0117, P0118, P0128

A quick once‑over under the bonnet goes a long way. Look for coolant seeping around the thermostat housing (common spot for the ECT on 2.3L and 3.0L), brittle wiring, greenish corrosion in connectors, or damaged loom clips. Healthy coolant helps sensors live longer, so stick to the correct spec coolant and change it as per the service schedule.

When replacement is needed, let the engine cool completely. Disconnect the battery earth, relieve system pressure, and drain enough coolant below sensor level. Swap the sensor with a new seal, reconnect the plug, top up with the right premix, and bleed out air. On Hybrids using a CHT, access differs but the principle is similar — always follow the Ford Workshop Manual procedure for the exact engine. Afterward, clear codes and check live data so the PCM sees a believable temperature rise from cold start. It’s a straightforward job with the right approach, and it keeps the Escape happy across Kiwi and Aussie conditions alike.

Popular questions

Where is the engine coolant temperature sensor on a 2007 Ford Escape?
On most 2.3L and 3.0L petrol models, the ECT sits in or beside the thermostat housing at the front of the engine, near the upper radiator hose. The wiring runs along the front of the intake. The Hybrid uses a CHT sensor on the head, serving the same role for the PCM.

What are the signs a temp sensor is failing?
Common giveaways include a temp gauge that’s jumpy, radiator fans stuck on, rich running and poor economy, hard hot or cold starts, and AC that loses its chill at idle. The check engine light may appear with codes like P0117, P0118, or P0128.

Do I need to bleed the cooling system after replacing the ECT?
Yes. Any time the cooling system is opened, bleed it properly to avoid air pockets that can cause overheating or erratic temp readings. Warm the engine with the heater on, top up as the level drops, and verify stable operating temperature on the gauge and scan tool.