Transmission will not go into third gear or drive

Tiny
FRANKIJO515
  • MEMBER
  • 2004 BUICK LESABRE
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
The car will go into first, second, and reverse, but not third or drive.
Friday, December 7th, 2018 AT 11:40 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,476 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
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Monday, December 10th, 2018 AT 12:22 PM

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