Parts for your 1999 Daihatsu Gran move-Transmission filter

1999 Daihatsu Gran Move transmission filter — what it does and when to service it

Based on Daihatsu’s factory service literature for the Gran Move/Pyzar G30 series and the Daihatsu Electronic Parts Catalogue, the 1999 Daihatsu Gran Move with the 4‑speed automatic uses an internal automatic transmission oil strainer (often called a transmission filter) fitted inside the transmission sump, not an external spin‑on filter. Aisin’s service information for its small 4‑speed automatics used by Daihatsu in this era also describes a cleanable/replaceable mesh strainer and a pan gasket service. So yes — a transmission filter is relevant and fitted to this vehicle, and it’s serviced by dropping the pan.

On a 1999 Daihatsu Gran Move, the transmission filter’s job is simple but critical: it traps clutch material, fine metal, and other rubbish before it can circulate through the valve body and solenoids. Keeping that strainer clear helps maintain crisp shifts, protects the hydraulic circuits, and extends the life of the auto. Because this model uses a mesh‑type strainer inside the pan, it’s serviced during an ATF change rather than as a quick external swap.

As part of regular servicing of a 1999 Daihatsu Gran Move transmission filter, most workshops in Australia and New Zealand will recommend a pan‑off service every 40,000–60,000 km, or sooner if there’s shuddery shifts, delayed engagement, or burnt‑smelling fluid. The routine usually looks like this:

• Drain the ATF, remove the pan, and clean out any sludge and magnet fuzz.
• Replace or clean the internal mesh strainer (depending on condition and parts availability) and fit a new O‑ring if specified.
• Refit with a new pan gasket, torque the bolts evenly, and refill with a quality Dexron III‑spec ATF to the correct level at the specified fluid temperature.

Plenty of parts suppliers list service kits for the Gran Move’s auto, typically including a pan gasket, strainer, and O‑ring. If a genuine strainer isn’t on hand, a careful clean of the mesh can be acceptable, but any torn or deformed screen should be replaced. Always check for excessive debris — glitter or chunks in the pan can point to bigger issues that a filter service won’t fix.

If the vehicle tows, does lots of short trips, or sees hot summer traffic, shorten the interval. Fresh, cherry‑coloured ATF and a clean strainer help the little Daihatsu’s auto stay smooth and reliable for the long haul.

Popular questions about 1999 Daihatsu Gran Move transmission filters

Does the 1999 Daihatsu Gran Move have a replaceable transmission filter?

Yes. It uses an internal mesh‑type oil strainer inside the transmission pan. It’s serviced by removing the pan and either replacing the strainer with a new one from a service kit or cleaning it if it’s still in good nick. There’s no external spin‑on filter on this model.

What ATF should be used after servicing the transmission filter?

Use a quality Dexron III‑compatible ATF. After refilling, the level should be checked with the engine idling and the transmission at the specified temperature, cycling through the gears to purge air. Running the wrong fluid or an incorrect level can cause harsh or delayed shifts.

How often should the Gran Move’s transmission filter be serviced?

For Aussie and Kiwi conditions, a pan‑off service every 40,000–60,000 km is a safe bet, or earlier if the ATF is dark/burnt or the shifts feel off. Vehicles that tow or see heavy city use benefit from shorter intervals.