# Sensors

**URL:** <https://community.cartalk.com/t/sensors/57490>\
**Category:** Maintenance/Repairs\
**Tags:** skylark, buick\
**Created:** [November 12, 2010, 4:57pm UTC](https://community.cartalk.com/t/sensors/57490 "2010-11-12T16:57:43Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![funk](https://avatars.discourse-cdn.com/v4/letter/f/d07c76/32.png) [@funk](https://community.cartalk.com/u/funk)\
**Post date:** [November 12, 2010, 4:57pm UTC](https://community.cartalk.com/t/sensors/57490/1 "2010-11-12T16:57:43Z")

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I have a 3T40 3 speed auto in my 91 skylark GS. Where is the speed sensor & the TCC circuit located on the trans.?

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**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:** [November 12, 2010, 5:06pm UTC](https://community.cartalk.com/t/sensors/57490/2 "2010-11-12T17:06:18Z")

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The VSS is located on top of the transaxle near the back of the engine. The TCC solenoid/circuit is mounted on the valve body inside the transaxle.

Tester