Parts for your 2008 Holden Commodore-Crank angle sensor

2008 Holden Commodore crank angle sensor: purpose, use, and service advice

Technical sources including the Holden VE Commodore Workshop Manual, GM Service Information for the VE platform (V6 Alloytec and Gen IV V8), and major parts catalogues used by Australian and New Zealand workshops all confirm that every 2008 Holden Commodore variant is fitted with a crank angle sensor (also called a crankshaft position sensor or CKP). It reads a toothed wheel on the crankshaft to feed exact engine speed and position data to the ECU. Without it, there’s no precise spark or fuel timing, and the engine won’t run.

On the VE 3.6L V6 and 6.0L V8, the sensor is mounted to the engine block, reading the crank’s reluctor wheel through the casing (location varies slightly by engine, typically low on the block near the rear or bellhousing area). GM’s service literature specifies the CKP as a critical input alongside the cam sensors, and parts catalogues list direct-replacement CKPs for the 2008 model year—clear evidence the component is both relevant and used.

Purpose-wise, the CKP tells the ECU exactly where the crank is at any moment, so it can trigger ignition and injectors at the right angle. A failing sensor can cause hard starting (especially when hot), stalling, rough idle, misfires, an inoperative tacho, and fault codes like P0335/P0336. Because the sensor is solid-state, it isn’t a routine replacement item, but age, heat, oil seepage, or wiring damage can take them out after many kilometres.

For servicing or replacement on a 2008 Holden Commodore, a sensible approach is:

• Confirm the fault with a scan tool and live data (no RPM signal during crank is a giveaway), check wiring/connectors, and rule out cam sensor issues.
• Park safely, let the engine cool, and disconnect the negative battery terminal in the boot.
• Raise the vehicle on stands if access is from underneath. The sensor is usually held by a single bolt, unplug, remove, lightly oil the new O-ring, install squarely, and torque the bolt to the workshop manual spec.
• Clear codes, check live RPM during cranking, and road test. A CKP variation learn is typically not required unless the ECU has been replaced, follow GM procedures if prompted by the scan tool.

Prevention-wise, keep oil leaks in check so the sensor and connector don’t get bathed in grime, and inspect the harness routing whenever the undertray is off. When replacing, choose an OEM-quality sensor—cheap units can cause intermittent no-starts that’ll drive anyone mad.

Popular questions about the 2008 Holden Commodore crank angle sensor

Where is the crank angle sensor located on a 2008 VE Commodore?
It’s mounted to the engine block reading the crank’s reluctor wheel. On the 3.6L V6 it’s typically low and towards the rear of the engine near the bellhousing, on the 6.0L V8 it’s in a similar lower-block area. Access is usually from underneath once the car is safely on stands.

What are the common symptoms of a bad crank angle sensor?
Hard starting (often when hot), random stalling, rough idle, misfires, no tacho movement while cranking, and engine light with codes like P0335/P0336. If live data shows no RPM during crank, the CKP or its wiring is high on the suspect list.

Does the sensor need programming after replacement?
Generally, no. Fit the new sensor, clear the codes, and it should read straight away. A crank variation learn is only needed if directed by the scan tool (commonly after ECU replacement rather than a sensor swap).