Transmission acts like it is stuck in neutral

2003 LEXUS RX 300
157,000 MILES • 3.0L • V6 • 4WD • AUTOMATIC
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DEANDREA JONES
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  • 1 POST
My car stalled and upon restart shifted to drive and no engagement will not start unless in park or neutral and when i try to shift it in drive or low and reverse it rolls like it's in neutral.
Changed fluid,filter,torque converter clutch solenoid.
Jul 21, 2021 at 7:49 PM
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MASTER ASE TECH
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Hi my name is Dan.

Sounds like you may have an internal transmission issue. Several items inside the transmission could may suddenly like a snap ring or wave plate, or even the front pump. I've attached a link to a basic guide that may give you some insight into transmission issues.

https://www.2carpros.com/articles/automatic-transmission-problems
Jul 22, 2021 at 1:42 PM
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KASEKENNY
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  • 18,907 POSTS
Just to add to what Dan said, this sounds like a possible pressure issue which is what he mentioning with the pump. However, I have also seen on this transmission where it gets low on fluid due to a leak or just poor fluid condition and it causes this issue.

Basically it is just pulling air into the pick up rather then fluid.

This can be solved by servicing the unit, correcting any leaks and putting the correct amount of fluid in it.

Here is a guide that will help with changing the fluid which will give good info:

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

Below you will find the process on how to check the fluid level. You do not have a dipstick so you basically remove this plug in the pan and if the fluid is not running out then it is either low or perfectly filled. So you need to add fluid to it until it runs out of the plug. Then let it stop and replace the plug.

Take a look at the info below and let us know if you have questions and what you find. Thanks
Jul 22, 2021 at 7:04 PM
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