Parts for your 2020 Holden Colorado-Power steering pump

2020 Holden Colorado power-steering-pump: what’s fitted and what isn’t

The 2020 Holden Colorado does not use a hydraulic power-steering pump. From the MY17 update onward, Colorado adopted Electric Power Steering (EPS), so there’s no belt-driven pump, no power-steering fluid reservoir, and no hydraulic hoses under the bonnet. This is documented in Holden’s MY17 Colorado technical specifications (media release pack, 2016), the RG Colorado Service Manual for MY17–MY20 (Steering section, which describes a rack-mounted electric assist motor and control module), and GM’s Global Electronic Parts Catalogue (RG Colorado 2017–2020, which lists no power‑steering pump in the accessory drive).

Why skip a pump? EPS cuts parasitic load on the diesel, helping fuel economy and emissions, and lets engineers tune steering effort for low-speed manoeuvres and highway stability. It also removes common hydraulic wear points—seals, hoses, and pumps—useful for a hardworking ute. For drivers, it means lighter parking, steadier feel on corrugations, and no fluid leaks to chase.

If someone’s hunting for a “2020 Holden Colorado power-steering-pump”, they’re really looking for the steering rack’s electric motor and its control electronics. There’s no fluid to flush and no pump to replace. When steering feels heavy or inconsistent on these utes, the usual checks aren’t for a leaking pump but for electrical health and alignment.

• Battery and charging system: EPS is sensitive to low voltage. A weak battery or alternator ripple can cause stiff or intermittent assist. Load-test the battery and confirm clean power and grounds.
• Fault codes and updates: Scan for EPS-related DTCs and apply any available steering module software updates noted in Holden service bulletins.
• Front-end condition: Worn ball joints, tie-rod ends, or out-of-spec alignment can mimic steering problems. Inspect rack boots and the intermediate shaft for play or binding.
• Off-road care: After deep water or mud, check for contamination around the rack, connectors, and loom routing. Keep connectors clean and properly clipped.

Bottom line: a hydraulic power-steering pump isn’t relevant to the 2020 Colorado. Keeping the EPS happy is mostly about good electrics, sound suspension geometry, and routine front-end inspections during servicing.

Popular questions

Does a 2020 Holden Colorado have power-steering fluid?
No. With EPS there’s no hydraulic circuit, so there’s no fluid to top up or flush. If steering feels heavy, focus on battery condition, alternator output, wheel alignment, and possible EPS fault codes rather than fluid levels.

Can a hydraulic pump be retrofitted to a 2020 Colorado?
Practically, no. It would require a different steering rack, lines, reservoir, pulley drives, and calibration changes. It’s far more effective to diagnose the EPS properly and repair as needed.

How should the EPS be maintained on a 2020 Colorado?
Include a battery/charging test at service intervals, scan for steering-module codes, inspect front-end components and rack boots, and apply software updates when available. Avoid water ingress into connectors during off-road use.