Transmission will not go into third gear or drive

2004 BUICK LESABRE
150,000 MILES • 2WD • AUTOMATIC
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FRANKIJO515
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  • 1 POST
The car will go into first, second, and reverse, but not third or drive.
Dec 7, 2018 at 11:40 PM
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STRAILER
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Hello,

It sounds like you have a turbine shaft speed sensor or a gear range sensor issue but we need to run the codes first. Here is a guide:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Also please check the transmission fluid level as well. Is it leaking?

Please run down this guide and report back.

Cheers, Ken
Dec 10, 2018 at 12:22 PM