Parts for your 1998 Daihatsu Terios-Power steering hose

1998 Daihatsu Terios Power-Steering Hose — What It Does and How to Look After It

Based on technical references including the Daihatsu Terios J100-series workshop manual (1997–2006), the Daihatsu/Toyota electronic parts catalogue for the J100 chassis, and aftermarket catalogues from hose manufacturers like Gates and Dayco, the 1998 Daihatsu Terios runs a hydraulic power steering system. That means it absolutely uses power-steering hoses: a high-pressure hose from the pump to the steering rack and a low-pressure return hose from the rack to the reservoir.

On this Terios, the power-steering hose carries fluid that lets the rack do the heavy lifting, so the wheel feels light at parking speeds and stable at a cruise. The pressure line is a reinforced, crimped assembly built to handle pump output and heat, often with banjo fittings and crush washers. The return hose is less stressed but just as important for keeping fluid flowing back to the reservoir without aeration. If either hose leaks, the pump can suck air, whine like mad, and eventually cook itself or the rack, so a tidy, leak-free hose set is key to long-term reliability.

As part of regular servicing, it’s smart to inspect the hoses every service or 10,000–15,000 km. Check for sweating at crimps, hardening or cracking, swelling near heat sources, rub marks, and damp fittings. Keep an eye on fluid level and colour, low level or dark, burnt-smelling fluid points to trouble. The Terios of this era typically specifies ATF meeting Dexron II/III for the power steering—check the cap and handbook to be sure. Using the wrong fluid can attack the hose liner and accelerate leaks.

When replacement’s on the cards, go for an OEM or OEM-equivalent pressure hose and always fit new crush washers or O-rings. Route it exactly like the original to avoid chafe and heat soak. After fitting, bleed the system properly:

1. Front wheels off the ground, engine off: turn lock-to-lock 10–15 times while topping the reservoir.
2. Start the engine and repeat gently, don’t hold at full lock. Top up to the mark and check for bubbles or foaming.

Work clean, cap open lines to keep grit out, and let the car cool before cracking fittings—hot ATF can bite. Expect about 1–2 hours’ labour, older fittings may be stubborn. Dispose of old fluid responsibly and recheck for weeps after a week of driving.

Popular questions about 1998 Daihatsu Terios power-steering hoses

What fluid should go in the Terios power steering?
For most 1998 Terios models, the system is designed for ATF meeting Dexron II or Dexron III. The reservoir cap and owner’s handbook will confirm the exact spec. Sticking with the correct ATF keeps the hose liners happy and helps prevent noise, aeration, and premature hose or pump wear.

How can someone tell a Terios power-steering hose is failing?
Look for dampness at crimp joints, red or brown spots under the car, low fluid level, or a steering whine that gets louder at parking speeds. Heavier steering, foamy fluid, or a burnt ATF smell are also red flags. Any sign of swelling, cracking, or rubbing on the hose outer cover means it’s time to replace.

Can a pressure hose be repaired, or does it need replacing?
The high-pressure hose should be replaced as a complete crimped assembly. Patch repairs or generic clamps won’t safely hold pump pressure and can let go without warning. The low-pressure return hose can sometimes be renewed with quality power-steering-rated hose and proper clamps, but the pressure line is a full replacement job.