# Transmission **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** mercury, sable, transmissions\ **Created:** [May 7, 2013, 12:28am UTC](https://community.cartalk.com/t/transmission/79162 "2013-05-07T00:28:50Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Daechwon](https://avatars.discourse-cdn.com/v4/letter/d/e19adc/32.png) [@Daechwon](https://community.cartalk.com/u/Daechwon)\ **Post date:** [May 7, 2013, 12:28am UTC](https://community.cartalk.com/t/transmission/79162/1 "2013-05-07T00:28:50Z")
1995 Mercury Sable GS 3 liter The check engine light is on. More importantly, when I put the car into drive or overdrive, the transmission stays in 3rd gear, and will not shift up or down. When I put the car into first or reverse, they work normally. Any ideas? ---
**Author:** ![Rod-Knox](https://avatars.discourse-cdn.com/v4/letter/r/a183cd/32.png) [@Rod-Knox](https://community.cartalk.com/u/Rod-Knox)\ **Post date:** [May 7, 2013, 2:11am UTC](https://community.cartalk.com/t/transmission/79162/2 "2013-05-07T02:11:51Z")
That is often the result of the drive train control module defaulting to a limp mode when an input is out of range or non existent. Does the speedometer work? Is the fluid level correct? Does the car have OBD II? ---
**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\ **Post date:** [May 7, 2013, 3:26am UTC](https://community.cartalk.com/t/transmission/79162/3 "2013-05-07T03:26:14Z")
This explains how to pull the codes from your OBDI Ford. [http://www.extreme-check-engine-light-codes.com/check-engine-light-codes/FORD-1983-1995-OBD1-Decoder.html](http://www.extreme-check-engine-light-codes.com/check-engine-light-codes/FORD-1983-1995-OBD1-Decoder.html) On the list of codes the transmission is involved. Tester