Parts for your 2014 Ford Falcon-Temperature sensors

2014 Ford Falcon temperature sensors

Temperature sensors are absolutely fitted to the 2014 Ford Falcon and are central to how the car manages engine health, fuel control and comfort. Ford’s FG/FG MkII Workshop Manual details the Engine Coolant Temperature (ECT) sensor used by the PCM to manage fuelling, ignition timing and radiator fan strategy, the Intake Air Temperature (IAT) sensor, typically integrated with the MAP sensor on many FG/FG X cars, and the Ambient Air Temperature sensor for HVAC performance. For Falcons with the ZF 6‑speed auto, the transmission control integrates a fluid temperature sensor within the mechatronic assembly. Relevant technical references include the Ford Falcon FG/FG MkII/FG X Workshop Manual (Cooling System 303‑14, Fuel and Air Management 303‑12, Climate Control 412‑00) and ZF 6HP26/6HP21 technical literature describing internal transmission fluid temperature sensing.

On a 2014 Falcon, temperature sensors let the car think for itself. The ECT sensor tracks coolant heat so the PCM can choose the right fuel mix and spark, kick fans on at the right time and protect the engine if things get spicy under the bonnet. The IAT sensor helps fine‑tune fuelling as the air changes from a frosty South Island morning to a hot arvo on the Hume. The ambient sensor keeps the climate control honest, and the transmission temp sensor protects the auto from overheating and ugly shifts.

There’s no set replacement interval, but these sensors deserve a quick health check at each service. A scan tool should show ECT close to ambient on a cold start, then climbing smoothly to operating temp. If the ECT is stuck cold or hot, expect hard starts, high fuel use, lazy performance or a fan that runs like mad. IAT errors can cause rough running and poor economy, AC weirdness often points to a dodgy ambient sensor. Erratic shifting under load can be transmission temperature related.

• Coolant sensor: Inspect connector condition and any coolant seepage. Replace the sensor and seal/O‑ring if corroded or leaking. Bleed the cooling system after.
• IAT/MAP: If separate, clean the element with sensor‑safe cleaner only. If integrated, test via scan data and replace the assembly if readings are implausible.
• Ambient sensor: Lives in the grille/bumper area—check for stone damage and secure mounting.
• Auto trans temp: Internal to the mechatronic—addressed during pan, filter and fluid service or mechatronic repair, not a routine standalone swap.

Common fault codes to watch for include P0115–P0119 (ECT), P0112–P0113 (IAT) and P0072–P0073 (ambient). Catching issues early saves fuel, keeps temps stable and helps the Falcon feel spot on across Kiwi winters and Aussie summers.

Popular questions

Where is the coolant temperature sensor on a 2014 Ford Falcon?
On most 4.0L I6 Falcons, the ECT sensor sits at the coolant outlet/thermostat housing on the front of the cylinder head, near the top radiator hose. On V8 variants, it’s typically near the thermostat housing or coolant crossover. It’s a two‑pin sensor threaded into the housing with a sealing washer or O‑ring.

Can a faulty temperature sensor cause poor fuel economy and rough running?
Yes. If the ECT reads too cold, the PCM enriches the mix like permanent warm‑up, burning extra fuel. If it reads too hot or drops out, you can get hard hot starts, pinging or limp strategies with the fan running constantly. An out‑of‑range IAT can also skew fuelling and timing, making the engine feel doughy or surgey.

Do I need to bleed the cooling system after replacing the ECT sensor?
Definitely. Any coolant loss introduces air. Top up with the correct coolant mix, run the engine with the heater on, and bleed air via the recommended procedure until the upper hose is hot and stable, then recheck the level after a short drive.