Parts for your 2002 Daihatsu Gran move-Transmission filter

2002 Daihatsu Gran Move transmission filter: what it is, whether it’s there, and how to look after it

Looking at factory information, a transmission filter is only relevant on 2002 Daihatsu Gran Move models with the 4‑speed automatic. Daihatsu’s workshop manual for the Gran Move/Pyzar (late 1990s–2002) and the Daihatsu Electronic Parts Catalogue list an internal automatic transmission oil strainer inside the pan. By contrast, the 5‑speed manual gearbox fitted to many Gran Moves does not use a replaceable filter, it relies on clean gear oil, internal galleries, and a magnetic drain plug to catch wear particles. This aligns with Aisin-style 4‑speed ECT automatics used by Daihatsu at the time, which commonly employ a pan-mounted strainer and magnet setup.

For automatic versions, the transmission filter (often called a strainer) sits just above the sump pan and acts as the first line of defence against clutch material, fine metal, and varnish circulating in the ATF. It helps keep shift solenoids, valve bodies, and the torque converter happy, which means smoother shifts and less wear. Over time, especially with stop–start city work or if the ATF has been overheated, that strainer can load up with debris and the pan magnet can get furry. Left too long, you’ll feel delayed engagement, flared or harsh shifts, or even a light shudder on take‑off.

As part of routine servicing, it’s smart to refresh the ATF and attend to the filter. A practical interval for Australasian conditions is every 60,000–80,000 km or 4–5 years, sooner if the car tows, climbs a lot of hills, or sees hot summers. Use the ATF specified on the under‑bonnet label or owner’s manual (commonly a Dexron III‑type for this era). Many Gran Move strainers are a fine metal mesh: cleanable if undamaged, but inexpensive to replace when the pan’s off. While you’re there, clean the pan, wipe the magnet, fit a fresh pan gasket, and torque the bolts evenly. Refill by measured volume, then check the level at operating temperature with the selector cycled through all gears.

Signs it’s time? Try these:

• Slow engagement selecting Drive or Reverse
• Harsh or slipping shifts under light throttle
• Dark or burnt‑smelling ATF on the dipstick

Manual Gran Move owners can relax about filters, there isn’t one. Just replace the specified manual transaxle oil at sensible intervals and keep an eye on leaks. Fresh oil and a clean magnet do the heavy lifting in a manual.

Popular questions

Does my 2002 Gran Move actually have a transmission filter?
If it’s an automatic (PRND gear selector), yes—it uses an internal strainer above the pan. If it’s a 5‑speed manual with a clutch pedal, there’s no replaceable transmission filter at all. Unsure which you’ve got? A quick glance at the gear selector will tell the story, or check the build plate/owner’s manual.

How often should the automatic transmission filter be changed?
Plan on inspecting or replacing the strainer when you service the ATF every 60,000–80,000 km or 4–5 years. If the pan’s coming off, fitting a new strainer and gasket is low‑cost insurance. Vehicles that tow, live in hot climates, or do lots of short trips may benefit from shorter intervals.

Can the fluid be changed without dropping the pan and filter?
Yes, a basic drain‑and‑fill refreshes part of the ATF and can smooth things out. That said, dropping the pan every second fluid change is a good habit—it lets you clean the magnet, check for debris, and renew the strainer so the valve body keeps happy. It’s a small effort that can add years to the auto’s life.