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1994 4Runner, V6-3.0 2WD Auto 3VZE
Typical scenario - This started a few weeks ago - Start car, around 2 miles to freeway entrance, take freeway 6 miles to destination, at 60 MPH, engine speed is around 3100 RPM. 20 minutes later on the way home, at 60 MPH, engine speed is just over 2000 RPM. Transmission was drained, flushed, filter replaced and refilled a week ago. Of course the local transmission shop recommends replacing. Any ideas would be greatly appreciated.
 

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If that transmission is anything like other Aisin transmissions of the era, that's normal behavior.

On gen3/4 Camrys the A140E or A540E/A541E don't shift into overdrive until warmed up.
 

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1994 4Runner, V6-3.0 2WD Auto 3VZE
Typical scenario - This started a few weeks ago - Start car, around 2 miles to freeway entrance, take freeway 6 miles to destination, at 60 MPH, engine speed is around 3100 RPM. 20 minutes later on the way home, at 60 MPH, engine speed is just over 2000 RPM. Transmission was drained, flushed, filter replaced and refilled a week ago. Of course the local transmission shop recommends replacing. Any ideas would be greatly appreciated.
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1994 4Runner, V6-3.0 2WD Auto 3VZE
Typical scenario - This started a few weeks ago - Start car, around 2 miles to freeway entrance, take freeway 6 miles to destination, at 60 MPH, engine speed is around 3100 RPM. 20 minutes later on the way home, at 60 MPH, engine speed is just over 2000 RPM. Transmission was drained, flushed, filter replaced and refilled a week ago. Of course the local transmission shop recommends replacing. Any ideas would be greatly appreciated.
Ya I’ve read the temp housing can get clogged and not flow coolant properly and it will cause the auto transmission to not go into overdrive.
 

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My 95 4runner does the same, I let it warm up for about 10min and problem goes away. I just sort of got used to it.
 

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1991 Pickup 4WD SR5 V6, 1974 Land Cruiser FJ40, 1986 Porsche 944 Turbo
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If your transmission is not worn out, meaning there is a lot of metal in the fluid, which builds up enough friction to keep the transmission turning, then do a drain and fill 3x. Otherwise, changing the fluid will cause the transmission to slip. There are several write-ups on this procedure on here.
 
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