Parts for your 2017 Holden Colorado-Crank angle sensor

2017 Holden Colorado crank angle sensor: what it does and when to replace it

Yes—the 2017 Holden Colorado is fitted with a crank angle sensor (more commonly listed in GM/Holden documents as the crankshaft position sensor, CKP). This is documented in the Holden/GM RG Colorado service information for the 2.8L turbo‑diesel (Engine Controls – 2.8L Diesel), which includes CKP sensor diagnostics (DTCs such as P0335/P0336) and replacement procedures. Aftermarket catalogues for the RG Colorado also list a dedicated crankshaft position sensor for 2016–2020 models, further confirming fitment.

On this model, the crank angle sensor monitors the exact position and rotational speed of the crankshaft via a toothed reluctor wheel. The engine control module (ECM) uses that signal to time fuel injection and manage start, idle, torque delivery and emissions. If the signal drops out or is inaccurate, the ute can be hard to start, stall, run rough, fall into limp mode, or throw a check‑engine light with CKP‑related fault codes.

It’s not a routine service item, but it does benefit from basic care. During scheduled servicing, it’s smart for a technician to scan for stored CKP codes, visually check the sensor connector and harness where it routes down the block/bellhousing, and look for oil weeps or heat damage. On magnetic‑tip designs, fine metallic fuzz can build up, if the sensor is removed for other work, a quick clean with sensor‑safe electronics cleaner helps keep the signal crisp.

Replacement is straightforward for a pro: disconnect the battery, gain access at the rear/side of the engine, unplug the connector, remove the retaining fastener, swap the sensor with a new O‑ring, and torque to spec. Because the ECM relies on precise correlation between crank and cam signals, a crankshaft position variation learn (relearn) with a scan tool is recommended after replacement on the RG Colorado. Skipping the relearn can leave a subtle misfire counter or drivability niggle. It’s also worth inspecting the wiring near the starter and bellhousing, as heat and vibration are common culprits.

Tell‑tale signs it’s time to test or replace the crank angle sensor include: long crank/no start when hot, erratic tacho, sudden stalling at idle, or persistent DTCs P0335/P0336. Given how central the CKP is to injection timing on the 2.8L diesel, using a quality OEM‑spec sensor and sealing it correctly will save headaches and keep the Colorado pulling strong on Aussie and Kiwi roads.

• Technical sources referenced: Holden/GM RG Colorado Service Manual (Engine Controls – 2.8L Diesel: CKP diagnostics and replacement), GM Global Service Information (DTC P0335/P0336 for RG Colorado), aftermarket parts catalogues listing a crankshaft position sensor for 2016–2020 Holden Colorado 2.8L turbo‑diesel.

FAQs

Where is the crank angle (crankshaft position) sensor on a 2017 Holden Colorado?
It’s mounted on the engine block reading a toothed wheel on the crank, typically at the rear/side of the block near the bellhousing area. Access varies by tools and lift, but most workshops approach it from underneath with the splash shields removed.

Do I need a relearn after replacing the crank angle sensor?
Yes—on the RG Colorado the ECM expects a precise crank variation profile. After fitting a new sensor, a crankshaft position variation learn with a suitable scan tool helps avoid phantom misfire counts, rough idle or intermittent fault codes.

What symptoms point to a failing crank angle sensor on the Colorado?
Common clues include long crank or no‑start (especially hot), sudden stalling, uneven idle, a dead or jumpy tacho, and the check‑engine light with codes like P0335/P0336. Before condemning the sensor, check wiring and connectors for heat or oil damage.