Parts for your 2013 Ford Falcon-Knock sensor

2013 Ford Falcon Knock Sensor: Purpose, Care, and When to Replace

Based on factory documentation, the knock sensor is absolutely relevant and fitted to the 2013 Ford Falcon. Ford’s FG/FG MkII Falcon Workshop Manual (Engine—Electronic Engine Controls) specifies a block-mounted detonation/knock sensor on the Barra 4.0L inline-six (including EcoLPi), while the FPV supercharged 5.0L “Miami” V8 uses two valley-mounted sensors. Ford’s Microcat/Global parts catalogue for 2012–2014 Falcons also lists the knock sensor across these engines. These technical sources confirm the part’s presence and role on 2013 Falcon models.

On a 2013 Falcon, the knock sensor’s job is to listen for pinging (detonation) and feed that info to the PCM so ignition timing can be trimmed on the fly. That lets the engine run strong on Aussie and Kiwi fuels, adapt to heat, load, and altitude, and protect pistons and bearings when conditions turn harsh. It’s one of those quiet heroes that keeps power smooth and fuel use sensible without the driver having to think about it.

It’s not a scheduled service item, but it does benefit from sensible care. During intake or top-end work, ensure the sensor and its connector are clean, the harness isn’t pinched, and the mounting surface on the block is free of corrosion. The sensor relies on correct clamping force, so it should always be installed to the workshop manual’s torque spec with a torque wrench—over- or under-tightening can dull its “hearing.” If the engine has had an oil or coolant leak down the side of the block, it’s worth inspecting the sensor and plug for contamination.

Common tell-tales that the knock sensor circuit isn’t happy include a check engine light with codes such as P0325/P0330, noticeable pinging under load, sluggish performance (timing heavily retarded), or a sudden rise in fuel use. Before condemning the sensor, technicians usually check fuel quality, vacuum leaks, engine mounts (excess vibration can confuse the sensor), and wiring continuity. If replacement is needed, a quality OE-equivalent sensor is the go. On the Barra I6 it’s tucked under the intake side mid‑block, so plan for intake access, on the FPV V8 it lives in the valley under the supercharger hardware.

• Signs it may need attention: pinging, CEL with knock codes, flat performance, poor economy.
• Service tips: protect the connector, keep the mounting face clean, and torque to spec.
• Best practice: scan data to verify knock activity and timing correction before parts swapping.

Popular questions about 2013 Ford Falcon knock sensors

Where is the knock sensor on a 2013 Ford Falcon?
On Barra 4.0L engines, it’s mounted on the left-hand side of the block under the intake manifold, roughly mid‑way along the cylinders. On FPV supercharged 5.0L V8s, there are two sensors mounted in the engine valley beneath the intake/supercharger hardware.

What are the symptoms of a faulty knock sensor on a 2013 Falcon?
Typical signs include a check engine light with P0325/P0330 codes, pinging under load, lazy throttle response as the PCM pulls timing, and higher fuel consumption. Because other faults can mimic these symptoms, proper diagnosis with scan data is recommended before replacement.

Is the knock sensor a routine service item?
No. It’s generally replaced only when faulty or damaged during related engine work. During major services that involve intake removal, technicians usually inspect the sensor, connector, and harness, and ensure the fastener is torqued correctly on reassembly.