4AT harsh/jerky shifts - check ATF level & type first
- Symptoms
- Factory manual specifies ATF Dexron (SM2 F03 line 85 'LUBRICANT: ATF Dexron'). Passo.su forum warns WS-type ATF is incompatible with other types and mixing causes shift shock.
- Confidence
- unverified (single forum post; generation of poster's car not confirmed)
Sources
- passo.su/forums/toyota-passo-Zamena-masla-v-AKPP-t1297-st340
- pakwheels.com/forums/t/toyota-passo-daihatsu-boon-owners-fan-club/1737
- manuals/text/m300_SM2_F03.txt (factory manual)
Related problems on this car
- 1KR oil consumption
- Blocked catalytic converter
- A/C load: idle vibration & poor pick-up with A/C on
- A/C compressor seizure / noise
Similar problems on other cars
- P0977 on the 1.3 automatic · Toyota Corolla (11th gen, E170)
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Guidance only – confirm with a mechanic before repairs. All common problems