Parts for your 2005 Toyota Caldina-Power steering pump

2005 Toyota Caldina Power-Steering Pump

For the 2005 Toyota Caldina (T24-series: ZZT241 1.8-litre, AZT241/246 2.0-litre, and ST246 2.0T GT-Four), a hydraulic power-steering system with an engine-driven vane-type pump is fitted. This is documented in Toyota’s Electronic Parts Catalogue (listing “Pump Assy, Vane (Power Steering), PNC 44320” across these model codes) and the Toyota Service Information (TIS) steering section for T24# vehicles, which details pump removal/installation, belt routing and fluid procedures. The owner’s manual and service literature specify ATF (Dexron II/III) for the power-steering fluid in this platform.

The power-steering pump’s job is to supply hydraulic pressure to the steering rack so the wheel feels light and consistent at parking speeds and steady on the motorway. When it’s healthy, the Caldina is easy to manoeuvre with a predictable, tidy feel through the wheel. If the pump’s wearing out, the tell-tales are a whining noise especially on full lock, heavier-than-normal steering, aerated or dark fluid, or dampness around the pump body and hoses.

As part of regular servicing, it’s smart to check fluid level and condition at each service and consider a preventative fluid exchange every 60,000–80,000 km. Use the correct ATF (Dexron III is the common go-to in Australia and New Zealand), keep the reservoir filter screen clean, and inspect the drive belt for glazing or cracking. Also look over the pressure and return hoses and the banjo fittings at the pump—any weeping deserves attention before it becomes a leak.

If the pump needs replacing, choose a quality new or reconditioned unit and new sealing washers for the high-pressure line. Follow the workshop procedure for bleeding: wheels off the ground, engine off, turn lock-to-lock slowly several times, top up, then engine on and repeat until bubbles clear and the fluid quietens down. Don’t hold full lock for more than a couple of seconds. After a road test, recheck for leaks and set the fluid to the correct level when hot. Attending to a noisy or leaking pump early saves the steering rack and keeps the Caldina feeling spot-on around town and on long Kiwi and Aussie road trips.

• Watch for whine on lock, heavy steering, or discoloured fluid
• Use ATF Dexron III and keep levels in the “HOT” range after bleeding
• Inspect belt tension and hose condition at each service

Popular questions

What power-steering fluid does a 2005 Caldina use?
Toyota specifies automatic transmission fluid for the power-steering system—use ATF that meets Dexron II or Dexron III. Check the reservoir cap and your owner’s manual, in this platform Toyota did not call for a separate “power-steering fluid”. Using the correct ATF helps prevent pump whine and extends seal life.

How do you bleed the Caldina’s power-steering after pump replacement?
With the front wheels off the ground and engine off, fill the reservoir and turn the steering slowly from lock to lock several times. Top up. Start the engine and repeat, avoiding holding full lock. Keep topping up until there are no bubbles and the fluid stays clear. Road test, recheck for leaks, then confirm level when hot.

Is a heavy steering feel always the pump?
Not always. A failing pump can cause heaviness and a whining noise, but a slipping drive belt, low or aerated fluid, a partially blocked reservoir screen, or internal wear in the rack can feel similar. Start with fluid and belt checks, then pressure testing per the Toyota service manual if the issue persists.