Parts for your 1998 Daihatsu Gran move-Power steering hose

1998 Daihatsu Gran Move power-steering hose – what it does and how to look after it

Yes, the 1998 Daihatsu Gran Move (G300 series, also known as Pyzar in some markets) is fitted with hydraulic power steering and therefore uses power‑steering hoses. This is confirmed by factory sources including the Daihatsu G300 Series Workshop Manual (Steering – Power Steering System) and the Daihatsu Electronic Parts Catalogue for G301/G303 models, which list a pressure hose (pump to steering gear) and a return hose (gear to reservoir) under Steering Group 44. Service data providers for AU/NZ also specify ATF Dexron II/III as the correct power steering fluid for this system, further indicating a conventional hydraulic setup.

On the Gran Move, the power‑steering hose pair does the heavy lifting for the hydraulic assist. The high‑pressure hose carries pump output to the rack, while the return hose brings fluid back to the reservoir. When they’re healthy, steering stays light, quiet and predictable. When they age, you’ll often see sweating at crimps, damp spots on the lines, or hear a tell‑tale whine from the pump as air sneaks in.

As part of routine servicing, a quick visual once‑over pays off. Look for perishing, chafe marks, oily residue around fittings, and any soft spots. Keep the fluid at the correct level with the specified ATF Dexron II/III and make sure it stays clear and cherry‑red rather than dark and burnt. If a hose is leaking or swollen, replace it promptly—hydraulic leaks can take out the pump and make steering heavy at the worst time.

• Always use a hose rated for power‑steering pressure, fuel or heater hose won’t cut it.
• Replace sealing washers on banjo fittings and use new clamps on the return line.
• After any hose work, bleed the system: top up, start the engine, and turn lock‑to‑lock a few times, topping as needed until no bubbles remain.

A competent DIYer can handle a return hose, the high‑pressure line is best left to a pro due to the pressures involved and the need for correct routing and torque on fittings. A good shop will also flush contaminated fluid, check the pump pulley alignment and inspect the rack boots while they’re there. With decent fluid and hoses in good nick, the Gran Move’s steering stays light and drama‑free around town and on the open road.

Technical references used: Daihatsu G300 Series (Pyzar/Gran Move) Workshop Manual – Steering, Power Steering System, Daihatsu EPC (G301/G303) – Steering Group 44, AU/NZ service data listings for power‑steering fluid specification.

Popular questions about 1998 Daihatsu Gran Move power‑steering hoses

What fluid should go in the Gran Move’s power steering?
The system calls for ATF Dexron II or Dexron III, as specified in Daihatsu service information for the G300 series. Using the correct ATF helps keep the pump quiet, the seals happy and steering assist consistent.

How can someone tell if a Gran Move power‑steering hose is failing?
Common signs include oily residue on or under the hose, damp crimps, a burning‑oil smell after driving, groaning or whining when turning, and a low or aerated fluid level. If the steering briefly gets heavy at parking speeds, that’s another red flag.

Can a universal hose be used for the high‑pressure line?
Not recommended. The high‑pressure hose must meet the original pressure rating, have the correct fittings, and route properly to avoid rubbing. Use an OEM‑spec replacement or a quality remanufactured line built to the proper spec for the Gran Move.