Parts for your 2013 Holden Colorado-Power steering pump

2013 Holden Colorado power-steering-pump

Based on technical sources, the 2013 Holden Colorado (RG series, 2012–2016) is fitted with a hydraulic power-steering system that uses a belt-driven pump. The Holden RG Colorado Service/Repair Manual (Steering section) and GM Global Service Information list procedures for the power-steering pump, hoses and hydraulic rack, confirming a conventional hydraulic setup rather than electric power steering. Platform-sharing documentation for the equivalent Isuzu D‑Max of the same era also specifies a hydraulic pump layout.

On a 2013 Colorado, the power-steering pump’s job is to pressurise fluid and send it to the steering rack so the wheel feels light and predictable at low speeds while staying stable at highway pace. It’s driven by the accessory belt, and when it’s healthy you’ll barely notice it working—just smooth steering, even with a tray full of gear or a trailer on the back.

As part of regular servicing, it’s smart to give the power-steering pump and system a quick once-over. A few minutes now can save a bigger job later. Typical red flags include heavy or uneven steering, a whining or groaning noise that follows engine revs, visible leaks around the pump, hoses or reservoir, and aerated or dark, burnt-smelling fluid. If there’s glittery debris in the fluid, the pump or rack may be shedding material and the whole system needs extra attention.

Basic care tips for a 2013 Holden Colorado power-steering-pump:

• Check fluid level and condition at each service interval, top up only with the fluid type specified in the owner’s manual (many RG Colorados use a Dexron-type ATF—confirm for your VIN).
• Inspect the drive belt for cracks, glazing or slack, a slipping belt can mimic a failing pump.
• Look for seepage at hose crimps, banjo fittings and the pump shaft seal, fix small leaks before they become big ones.
• If replacing the pump, flush the system thoroughly and fit new sealing washers/O-rings, consider an inline return filter on contaminated systems.
• Bleed properly: wheels off the ground, turn lock-to-lock with the engine off to purge air, then repeat at idle, don’t hold at full lock for more than a couple of seconds.

There’s no universal fluid change interval, but many owners and techs in Aussie and Kiwi conditions refresh power-steering fluid every 60,000–100,000 km or around four years, especially if the ute tows or works off-road. During a pump replacement, always verify pulley alignment, belt routing and tension, and recheck for leaks after the first drive. If the steering is still noisy or heavy after a proper bleed, have the rack and pressure hose checked before assuming the new pump is at fault.

Popular questions about 2013 Holden Colorado power-steering-pump

How can someone tell if the power-steering pump is failing?
Common clues are a high-pitched whine that rises with revs, heavier steering at parking speeds, shudder when turning, and fluid that’s low, foamy or dark. If topping up the correct fluid quietens it only briefly, there may be an internal pump or hose issue that needs attention.

What fluid does a 2013 Holden Colorado power-steering system use?
Most RG-series Colorados specify a Dexron-type ATF for the power steering, but the safest move is to check the owner’s manual or under-bonnet label for the exact spec tied to the VIN. Mixing fluid types can cause noise, seal swelling and premature wear.

Is a flush required when replacing the pump?
Yes—flushing helps remove debris that can damage a new pump or the steering rack. After fitting the new unit, flush, install fresh fluid, and bleed the system properly. If the old fluid had metal particles, consider an inline return filter and inspect the rack for internal wear.