'05 Avensis Pops Out Of Gear - Auto Transmission

[cmhnz]

Hi all,

My 2005 Avensis has an issue when under load in reverse gear, ie. reversing up an incline, or accelerating quickly in reverse gear, in that it pops out of gear and into neutral. The gear lever doesn't move, but you can feel the gearbox flick into neutral and then back again, often with quite a nasty jolt.

All forward gears are fine.

Any suggestions as to the cause before I take it in for a service? I'm in Malawi so I'd like to have an idea of what I'm talking about as the garages available here don't tend to be of the highest standard...

Thanks,

Chris

[Konrad C]

If the car had been manual, then I would say engine mounts or synchro.

When last has the transmission fluid and filter been changed.

That's the only thing I can think of.