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Buick
Lesabre
Drivetrain
Transmission
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Transmission will not go into third gear or drive
2004 BUICK LESABRE
150,000 MILES • 2WD • AUTOMATIC
FRANKIJO515
MEMBER
1 POST
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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
CERTIFIED EXPERT
53,855 POSTS
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