Possible transmission slipping issue

IMAGING

MEMBER
2005 TOYOTA SIENNA
3.3L
V6
4WD
AUTOMATIC
119,000 MILES

I don't know if my vehicle has transmission slippage. Every now and then when I rev up the car, RPMs go up but the car doesn't go anywhere until about 5 seconds later. It delays. Like I said before, there are days that pass and this doesn't happen. So I don't know what it could be.

Tuesday, April 20th, 2021 AT 6:05 PM

3 Replies

ASEMASTER6371

MECHANIC
52,796 POSTS

Good morning,

I would start by checking the level to be sure there is enough fluid.

https://www.2carpros.com/articles/automatic-transmission-problems

I would also suggest changing the fluid and filter. If the filter is partially clogged, it will do this.

https://www.2carpros.com/articles/how-to-service-an-automatic-transmission

Roy

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Wednesday, April 21st, 2021 AT 4:27 AM

IMAGING

MEMBER
151 POSTS

I did check the levels and they are correct. Now, you don't recommend a flush.
If I change the filter, should I change the gasket?
So even though this doesn't happen all the time, it's still considered a slippage?
How about the Lucas Stop Skip fluid? Should I use that?

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Wednesday, April 21st, 2021 AT 10:37 AM

ASEMASTER6371

MECHANIC
52,796 POSTS

No, do not do a flush, just a fluid exchange. The flushing agent damages the clutches.

Yes, always change a gasket. Never reuse an old gasket.

No additives, They have no effect on the issue.

Roy

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Wednesday, April 21st, 2021 AT 12:12 PM