Parts for your 2001 Daihatsu Gran move-Power steering pump

2001 Daihatsu Gran Move power-steering-pump: what it does and how to look after it

Technical sources confirm the 2001 Daihatsu Gran Move (also known as the Pyzar, chassis codes G303/G313) uses a hydraulic power steering system with a belt-driven power-steering pump. The Daihatsu workshop manual for the G3-series lists a rack-and-pinion layout with hydraulic assist and a dedicated pump driven by the accessory belt, and the Daihatsu Electronic Parts Catalogue for G303/G313 includes a “pump assy, power steering” for 2001 models. Major aftermarket catalogues for belts and steering components also show an accessory drive layout that includes a power-steering pump on this vehicle. So, yes—the power-steering pump is fitted and relevant to the 2001 Gran Move.

On this Daihatsu, the power-steering pump’s job is to supply hydraulic pressure so the steering stays light and predictable at parking speeds and steady on the open road. It’s engine-driven, so when the belt turns the pulley, the pump moves fluid through the hoses to assist the rack.

For everyday servicing, it’s worth giving the pump and system a quick once-over whenever the bonnet is up. Check fluid level and condition in the reservoir—fluid should be clean and red (the manual specifies ATF Dexron II or Dexron III, always follow the cap or handbook). If the fluid’s dark, smells burnt, or looks foamy, plan a change. A simple drain-and-fill every 60,000–100,000 km, or about every 4–5 years, helps keep the pump and rack happy. Inspect the drive belt for cracks or glazing and set the tension to spec—too loose and you’ll get a squeal and heavy steering, too tight and you can wear the pump bearings.

Signs it’s time to sort the pump or fluid:

• Whining or groaning when turning, especially at full lock
• Heavier-than-normal steering effort at low speeds
• Leaking fluid around the pump, hoses, or rack
• Pulsation in the steering wheel or aerated fluid in the reservoir

If replacing the pump, fit new O-rings/seals, flush old fluid, and don’t run the pump dry. After installation, bleed the system: with the front wheels off the ground, turn lock-to-lock slowly a few times with the engine off, top up, then repeat with the engine idling until bubbles clear and the level stabilises. Check hose clamps, the high-pressure union, and the pulley alignment. A fresh belt and correct torque on the brackets go a long way to quiet, reliable steering.

A well-maintained pump on the 2001 Gran Move will usually give years of service—keep the fluid fresh, the belt tidy, and leaks sorted early.

FAQs

What power-steering fluid should be used in a 2001 Daihatsu Gran Move?
Daihatsu specifies ATF Dexron II or Dexron III for the Gran Move’s power steering. Always confirm on the reservoir cap or in the owner’s handbook. Mixing fluid types isn’t a great idea—if you’re unsure what’s in there, flush and refill with fresh fluid of the correct spec.

How do you bleed the Gran Move’s power steering after a pump or hose change?
Top the reservoir, raise the front so the tyres are off the ground, and turn the wheel slowly from lock to lock several times with the engine off. Top up as the level drops. Then start the engine and repeat until there are no bubbles and the fluid stays at the “HOT” mark when warm. Keep an eye out for leaks around the pressure hose and pump seals.

What are the common signs the power-steering pump is failing?
A high-pitched whine, heavy steering at parking speeds, fluid leaks, or pulsation through the wheel are the usual giveaways. If the belt’s fine and fluid is fresh but the noise persists, the pump’s internal vanes or bearings may be worn and it’s time for a rebuild or replacement.