Parts for your 2002 Ford Falcon-Crank angle sensor

2002 Ford Falcon crank-angle sensor: what it does, where it lives, and when to change it

Yes, a crank-angle sensor is used on the 2002 Ford Falcon. Ford typically calls it a crankshaft position (CKP) sensor, but it’s the same bit. Technical sources that document its fitment and role include the Ford Falcon AU Series III and BA Series Workshop Manuals (Engine Management/Engine Control Systems sections), Autodata Technical Data & Repair for AU/BA models (AUS/NZ coverage), and the Bosch Automotive Handbook’s CKP sensor principles. Both late AU (early 2002) and early BA (late 2002-on) Falcons rely on a CKP signal for ignition and fuel control.

This sensor’s whole job is to tell the ECU exactly where the crank is and how fast it’s spinning. It reads a toothed wheel on the crank (often a “missing-tooth” design) and feeds back a clean timing reference so the ECU can fire the plugs and injectors bang-on time. No CKP signal, no start—simple as that. It also helps with misfire detection and smooth idle control.

As for servicing, the crank-angle sensor is largely fit-and-forget, but it lives in a tough spot near the crank pulley/harmonic balancer where heat, oil mist, and road grime can give it grief. During regular servicing it’s smart to:

• Visually check the wiring loom and plug for hardening, chafing, or corrosion.
• Make sure the sensor is seated squarely and its mounting bolt is snug.
• Inspect the harmonic balancer for wobble or delamination, which can upset the trigger wheel signal.
• Keep the area clean—metal filings stuck to the sensor tip can distort the waveform.

Common signs it’s on the way out include long crank/no start, intermittent stalling, a dead tach during cranking, random misfire or “limp” behaviour, and fault codes like P0335/P0336. If those pop up, start with a proper scan and a scope check of the CKP waveform where possible.

Replacement on a 2002 Falcon is straightforward: disconnect the battery, access the sensor by the crank pulley, unplug it, remove the single fastener, swap in the new unit with a dab of dielectric grease on the connector, and route the harness exactly like the original. Most units are self-spacing, don’t force or shim. Use a quality OEM or reputable aftermarket part—cheap copies can cause hot-start dramas. After refit, clear codes and road-test, the ECU will usually relearn on its own without special procedures.

Technical references: Ford Falcon AU Series III and BA Series Workshop Manuals (Engine Management/Engine Control Systems), Autodata Technical Data & Repair for Ford Falcon AU/BA (AUS/NZ), Bosch Automotive Handbook (CKP sensor fundamentals).

Popular questions

Where is the crank-angle sensor on a 2002 Ford Falcon?
On AU and BA 4.0-litre Falcons, it’s mounted near the crank pulley/harmonic balancer at the front of the engine, reading a toothed trigger wheel. Access is from the front underside, removing the splash shield helps. V8 variants also mount the CKP at the front timing cover area reading the crank trigger.

What are the symptoms of a failing crank-angle sensor on a 2002 Falcon?
Typical symptoms are hard starting or no start when hot, sudden stalling, rough running, erratic tach readings, and stored codes like P0335/P0336. Because the CKP is the ECU’s main timing reference, when it drops out the engine often dies instantly.

Should the crank-angle sensor be changed as routine maintenance?
It’s not a scheduled wear item. Replace it when there are confirmed faults or clear signs of deterioration. As part of regular servicing, inspect the wiring, connector, and the harmonic balancer condition to prevent future issues.