V6 auto issues

[Dragey]

Hey guys got an 07 4.0 auto. Seems to be lacking power when I'm down the beach.
I always put it in low unless it's really hard surface. If i put my foot down it seems to stutter and struggle for a bit then eventually picks up.
If i put it in neutral and rev it I can hear a release of air before the revs.
Any ideas?

[HK1837]

Not sure, but definitely something wrong. Do you have a Toyota service nearby?

[Qwerty]

Engine isn't idling too low is it?

I'd find a reputable auto trans specialist, toyota service tend to be manned by monkeys unless you can get through to the rare experts

[Dragey]

No doesnt idle too low. It's been to heaps of mechanics and they reckon nothing wrong.
Definitely not right and I'm ready to trade it in

[Qwerty]

What makes you think the issue is with the Auto? You mentioned in Neutral you detected issues too? (i don't really understand what a release of air means)

So far it sounds like the engine / transmission is hesitating when you put power down, which i occasionally detect in mine when she's cold (first minute or two of driving) but have never pursued.

Try disconnecting the battery for 10 minutes, which will force motor into re-learning mode.

Also cleaned your MAF sensor lately? Anything obstructing airflow into engine?

NFI , I'm no mechanic.

[HK1837]

How many kM? It has to be a fuel or spark issue which may be a dirty MAF but could be a sensor. Hence why I suggested a dealer to get diagnostics done.
If you trade it what on? You’ll be disappointed with anything else power wise.

[taresk]

The galleries in the valve body might have a build up of gunk in them (yes, that's the technical term), when was the auto last serviced/ flushed?