Parts for your 2009 Ford Falcon-Crank angle sensor

2009 Ford Falcon crank-angle sensor (crankshaft position sensor) — what it does and how to look after it

Based on technical sources including the Ford FG Falcon Workshop Manual (WSM, Section 303-14A: Engine Control), the FG Electrical Wiring Diagrams (EWD, 2008–2014), and trade databases such as Autodata, the 2009 Ford Falcon (both 4.0L I6 Barra and 5.4L V8) is fitted with a crank-angle sensor, more formally the crankshaft position (CKP) sensor. These documents specify a magnetic/reluctor-type sensor reading a toothed trigger wheel to feed engine speed and position to the PCM, and list related DTCs such as P0335/P0339 when faults occur. So yes—this part is relevant and used on the 2009 Falcon.

The crank-angle sensor is the PCM’s timekeeper. It tracks crank speed and exact crank angle so the computer can fire the injectors and coils at the right moment, and it works in tandem with the cam sensor for proper phase. On the 4.0L Barra, the CKP typically mounts low on the left-hand side of the block near the transmission bellhousing to read a 36-1 style wheel, on the 5.4L V8 it’s positioned at the front near the crank pulley. If the signal goes missing, the engine may crank but won’t fire.

It isn’t a scheduled replacement item, but it’s smart to include some checks during major services (every 60,000–100,000 km): look for oil contamination, heat damage, or a chafed harness and loose connectors. A quick clean of the mounting face and a careful inspection of the wiring can save a no-start drama later.

• Common symptoms of a tired CKP: long cranking when hot, random stalling, intermittent misfire, dead tacho on crank, and fault codes P0335 or P0339.
• Replacement tips: disconnect the battery, safely raise the car if needed, unplug the sensor, remove the retaining bolt, and swap in an OEM-quality unit. Don’t force it—keep the mounting face clean so the air gap is correct. Refit and tighten to manufacturer spec, reconnect, then clear codes.
• After replacement, most Falcons don’t need special programming, the PCM will relearn automatically. If idle is a bit off, a KAM (Keep Alive Memory) reset and brief idle relearn often helps.

When choosing a part, stick with genuine Ford or a known brand sensor designed for the FG. It keeps the signal clean under Aussie and Kiwi heat, dust, and stop–start driving. If the car has had the odd hiccup, adding a CKP inspection to the next service is cheap insurance under the bonnet.

• Where is the crank-angle sensor on a 2009 Ford Falcon?
  On the 4.0L I6 Barra it’s mounted low on the left side of the engine near the bellhousing, reading the crank trigger wheel. On the 5.4L V8 it’s typically at the front near the crank pulley/harmonic balancer. Access is usually from underneath on the I6.
• What are the signs the CKP is failing on a 2009 Falcon?
  Hot no-start or long cranking, intermittent stalling, misfires at cruise, a dead tach during cranking, and stored codes like P0335/P0339. The issue can be intermittent before it fully fails.
• Does a new CKP need programming on an FG Falcon?
  Generally no. The PCM self-learns. If idle is rough afterwards, perform a KAM reset and allow the engine to idle with all loads off so it can relearn trims.