[PMD911]

The gear often gets stuck on my IS. Not sure how to explain this, but sometimes when I press down on the accelerator, the RPM rises but the car fails to go forward. Then all of a sudden the gear kicks in after a long delay. Can anyone explain?

 

[Tony Mack]

No explanation, but the same thing happens to me. Usually when I mash the accelerator to the floor. It's like the transmission can't figure out what gear to use.

 

[StypeCL]

Do you guys have an lsd, sounds to me like the lsd is having trouble making its mind. That happened to me all the time in my 2000 Silverado 4by.

 

[Tony Mack]

No LSD on mine. No reason to have it in Florida.

 

[IS300GTE]

sounds like 1 of 2 things, the tranny is going up, the valves inside are sticking, or one or more of the brake calipers are sticking, if this is from a stop.
if from a roll, it is probably just trying to select a gear.