Parts for your 2016 Ford Falcon-Knock sensor

2016 Ford Falcon knock sensor — purpose, fitment and servicing tips

Yes, the 2016 Ford Falcon (FG X) uses knock sensors. Ford’s factory service information for FG X models lists knock-sensor monitoring and fault codes (P0325–P0334) within the Electronic Engine Controls. The Barra 4.0 inline-six (naturally aspirated and XR6 Turbo) is specified with knock sensing on the block, and the XR8’s 5.0L Coyote V8 uses dual knock sensors in the vee to detect combustion knock. This is consistent with Ford’s 5.0L Ti-VCT Coyote engine service literature and the FG/FG X workshop manual engine-control descriptions.

On a 2016 Falcon, the knock sensor’s job is dead simple: it listens for pinging (detonation) and lets the PCM trim ignition timing on the fly. That protects the engine under Aussie and Kiwi conditions — hot days, long hills, and the occasional tank of dodgy fuel — while keeping power and economy on point.

It’s not a routine service item, but it’s smart to check it when you’re doing bigger jobs under the bonnet, especially around 100–150,000 km or if there’s any drivability niggle. Common clues it’s unhappy include:

• Check engine light with codes like P0325–P0334
• Pinging under load, doughy performance, or higher fuel use
• Intermittent misfire feel despite good plugs and coils

Location notes: on the Barra I6, the sensor(s) sit on the block, typically under the intake side, on the XR8 Coyote, two live in the valley under the intake manifold. They rely on a clean, flat mating face and correct torque to “hear” properly — over-tightening or using sealant can dull the signal.

Replacement and care tips for a 2016 Falcon knock sensor:

1. Disconnect the battery and let the engine cool fully.
2. Gain access (intake tube or manifold removal may be required depending on engine).
3. Inspect the harness and connector first — chafed wiring is a common culprit.
4. Clean the block pad, fit the new sensor dry and align correctly.
5. Tighten to the specified torque (typically around 20–25 N·m, confirm for your engine variant).
6. Route the loom away from coils/alternator to avoid electrical noise, then clear codes and road test on premium 95 RON or higher.

If the car’s tuned or turbocharged, healthy knock sensing is crucial — it’s the safety net that lets the ECU keep timing sharp without risking the donk. When in doubt, scan for codes, verify fuel quality, and test before you replace.

Does every 2016 Falcon have a knock sensor?

Yes. The FG X range — Barra 4.0 (NA and XR6 Turbo) and XR8 5.0 Coyote — all use knock sensing. The inline-six typically uses block-mounted sensor(s), while the XR8 V8 has two sensors in the valley. The PCM uses them to trim timing across all models.

How long does a knock sensor last, and when should it be replaced?

There’s no set interval — they usually last the life of the engine. Replace only if you’ve got relevant fault codes, verified wiring is good, and symptoms point to the sensor. Always confirm torque and fitment so the new sensor “hears” correctly.

Can you drive with a faulty knock sensor?

It’ll usually default to safer, retarded timing, so it may feel flat and drink more fuel. Keep driving hard with a dead sensor and you risk detonation if conditions get tough. Best to sort it promptly to protect the engine and restore performance.