Parts for your 1996 Daihatsu Gran move-Radiator hose

1996 Daihatsu Gran Move Radiator Hose — Purpose, Care and Replacement

Technical sources confirm the radiator hose is fitted and relevant on the 1996 Daihatsu Gran Move. The Daihatsu Pyzar/Gran Move Workshop Manual (Cooling System, 1996–1998) and the Daihatsu Electronic Parts Catalogue (EPC) for G3xx Gran Move list distinct upper and lower radiator hoses for the HC‑EJ 1.5‑litre petrol engine, along with their clamps and routing.

On this model, the radiator hose pair shuttles coolant between the thermostat outlet and the radiator, and back to the water pump. Their job is simple but critical: move heat out of the engine, keep operating temps stable, and prevent under‑bonnet boil‑over. With the Gran Move’s compact bay and tight packaging, healthy hoses make a big difference to reliability on hot Aussie afternoons or long Kiwi hill climbs.

Rubber ages with heat, pressure and stray oil, so hoses can go soft, crack, or balloon near the clamps. It’s worth inspecting them at every service (about 10,000 km or six months for typical Australian and New Zealand schedules) and replacing proactively every 5–7 years, or sooner if anything looks off.

• Look for swelling, splits, hard spots, or crusty deposits at each end.
• Give the hose a squeeze when cold, a gritty or crunchy feel means internal decay.
• Watch for coolant weep marks under clamps and around the thermostat housing.

When it’s time to swap them out, let the engine cool completely, drain the coolant, then remove the lower hose first, followed by the upper. Clean the metal necks with fine emery, fit the correctly shaped new hoses (upper and lower are not interchangeable) with quality clamps, then refill with the right ethylene‑glycol coolant mixed 50/50 with de‑mineralised water. Bleed air by running the engine with the heater on hot, top up the radiator and overflow bottle, and recheck clamp tension after a short drive.

While you’re there, check the radiator cap, thermostat and heater hoses, and consider a coolant flush if it’s due. Matching parts by VIN or engine code (HC‑EJ) via the Daihatsu EPC helps ensure the correct hose geometry and diameter for a snug, leak‑free fit.

Popular questions about 1996 Daihatsu Gran Move radiator hoses

How often should the radiator hoses be replaced?
Hoses should be inspected at every service and typically replaced every 5–7 years or around 100,000 km. Replace sooner if there’s swelling, cracking, soft spots, or any coolant weep.

What coolant should be used after replacing the hoses?
Use a quality ethylene‑glycol coolant that meets recognised specs (e.g., JIS/ASTM passenger‑car coolant), mixed 50/50 with de‑mineralised water. Avoid mixing coolant types and flush the system if the existing coolant’s type is unknown.

Are the upper and lower hoses interchangeable?
No. They’re different shapes and lengths. Always order by VIN or engine code and fit each hose to its correct location to maintain proper routing and clearance under the bonnet.