Overdrive not working

2001 CHEVROLET LUMINA
200,000 MILES • V6 • 2WD • AUTOMATIC
Avatar
SEAN P JORDAN
  • MEMBER
  • 1 POST
Well I kind of have to problems but my transmission, the main problem is that I do not have overdrive. I have already change the fluid and filter.
Jun 10, 2018 at 10:09 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
ASEMASTER6371
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 52,796 POSTS
Good afternoon.

What condition was the fluid when you changed it?

Is there any codes set in the system?

Do you mean fourth gear or converter lock up?

Roy

https://www.2carpros.com/articles/automatic-transmission-problems
Jun 10, 2018 at 12:54 PM
Advertisement
Avatar
SEAN P JORDAN
  • MEMBER
  • 1 POST
I do not have overdrive or fourth gear.
At seventy mph rpm is 3,000. Fluid was nasty but new filter a bottle of Lucas and high millage fluid did not change still no fourth gear. I was told could possibly be a sensor or switch or something external that plugs in.
Jun 10, 2018 at 2:25 PM
Avatar
STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,178 POSTS
Hello,

This sounds like an input shaft speed sensor is going out but we should run the cdoes first.

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

Here is the location of the sensor (below) Please let us know what you find.

Cheers, Ken
Images (Click to enlarge)
Attached Media
Attached Media
Jun 12, 2018 at 12:20 PM