Parts for your 2020 Ford Everest-Knock sensor

2020 Ford Everest knock sensor — is it even there?

Short answer for Australia and New Zealand–spec 2020 Ford Everest models: a conventional knock sensor isn’t fitted or used on the diesel engines offered that year (2.0‑litre EcoBlue Bi‑Turbo and 3.2‑litre Duratorq TDCi). This is confirmed by the factory sensor inventories and circuit diagrams in the Ford Workshop Manual for Ranger/Everest 2019–2021 diesel engines (Engine Controls, Section 303), the corresponding Ford wiring diagrams (Section 418), and Ford’s EPC/Microcat parts listings, none of which include a knock sensor for these diesel powertrains. That aligns with technical texts such as Bosch Automotive Handbook and gasoline engine management references, which note that piezoelectric knock sensors are primarily used on spark‑ignition petrol engines to control detonation, not on compression‑ignition diesels.

Why it’s not used: “knock” as petrol owners think of it is a spark‑ignition problem. Diesel combustion is initiated by compression and tightly managed by the PCM through injection timing, rail pressure, and multiple pilot/main/post injection events. The Everest’s diesel ECU shapes combustion noise without listening for knock via a block‑mounted sensor. Instead, it models combustion and watches other data streams. That’s also practical because the broadband mechanical noise of a diesel block makes a traditional knock sensor signal far less useful.

What the Everest’s diesel engines monitor instead (per the Ford Workshop Manual sensor lists):

• Crankshaft and camshaft position for precise injection timing
• MAF, MAP/TMAP and charge‑air temperature for air‑path control
• Fuel rail pressure and temperature for delivery accuracy
• EGT, DPF differential pressure and NOx sensors for emissions and protection
• Coolant and oil temperature, accelerator pedal position and more

Servicing guidance: because there’s no knock sensor on these 2020 Everest diesels, there’s nothing to replace or maintain for that item. If an owner reports “knocking” or ping‑type noises, a technician should treat it as diesel combustion clatter or a drivability issue and look to fuel quality, software calibration, injector performance, boost leaks, EGR function and engine/transmission mounts. If a generic scan tool shows a knock‑sensor DTC (like P0325) on an AU/NZ 2020 Everest diesel, it’s typically a generic OBD profile or wrong engine selection rather than a real, missing part.

Note: Some overseas Everest variants fitted with petrol engines do use knock sensors as per standard spark‑ignition practice. The AU/NZ 2020 diesel line‑up does not.

Popular questions about 2020 Ford Everest knock sensor

Does the 2020 Ford Everest have a knock sensor?
For Australia and New Zealand diesel models (2.0 Bi‑Turbo and 3.2 TDCi), no. Ford’s workshop manuals, wiring diagrams and parts catalogues for these engines list no knock sensor. Petrol Everest variants in other markets may use one.

My scan tool shows a knock sensor code on my 2020 Everest diesel. Is something missing?
Nothing’s missing. That code usually comes from a generic OBD profile or an incorrect engine selection in the scan tool. Use Ford‑specific diagnostics and confirm the engine type, then focus on relevant diesel systems like fuel, air and emissions sensors.

What should be checked if the Everest sounds like it’s “knocking”?
On the diesel models, check fuel quality, injector balance, boost and intake leaks, EGR operation, engine/trans mounts and PCM calibration updates. Diesel clatter can increase with cold starts or poor fuel, but a traditional petrol‑style knock fault won’t apply.