Chevy Aveo 2011 - 4 speed - noise in D/R when cold

Hi all,

I have the 1.6 hatchback aveo(2011/12) with the 4-speed tranny.(Aisin).

Lost the manual but I do believe it takes the T-IV ATF. I changed it with the filter at 70,000 kms with Toyota T-IV.

Now at 100,000 kms after a few years of heavy use, daily frequent slow, stop-start traffic etc.

When it is cold and I put it into D or R straight away after starting it makes a slight grinding-like noise. I put it back into N or P straight away.

If I leave it idling for just 1 minute or so and put it into R/D then it's quiet.
Seems to be taking a bit of time to circulate the ATF??

Could the filter be slightly blocked, hence the delay in getting the ATF moving or a worn pump?

Worth performing another filter and ATF change?

What is the general service interval for this tranny?

No other issues - changes smoothly. Level good when cold and hot. I read that these Aisin trannys are robust so would surprise me if anything mechanical is wrong with just 100,000 KMS.


Thanks a lot

The patient says, “Doctor, it hurts when I do this.” “Then don’t do that!”


— Henny Youngman

just let it warm up a bit unless you want to open up a can of worms, dropping the pan to see what’s up won’t hurt.

Quote:

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Originally Posted by Eg.h2o

The patient says, “Doctor, it hurts when I do this.” “Then don’t do that!”


— Henny Youngman

just let it warm up a bit unless you want to open up a can of worms, dropping the pan to see what’s up won’t hurt.

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Thanks, yes we're doing that now, wife instructed to also. Just 30 secs or so seems to do the job. Don't dare to put it into R before that now.

We're planning to buy a new car this year anyway so don't want to do anymore work on it, just forked out a fortune on a GM AC compressor, timing belt/pump/tensioner etc. Beginning to turn into a money pit.
Had a damper shoot through the trunk's floor the other month after hitting a pothole!!

My wife is getting paranoid now with any noise she hears that something else is breaking on this GM car.

Think I might buy a new filter and gasket, drop the sump and inspect/change the filter