# CONTOUR, Shakes erratically sometimes

**URL:** <https://community.cartalk.com/t/contour-shakes-erratically-sometimes/65971>\
**Category:** Maintenance/Repairs\
**Created:** [July 5, 2011, 2:24pm UTC](https://community.cartalk.com/t/contour-shakes-erratically-sometimes/65971 "2011-07-05T14:24:01Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![sammyt](https://avatars.discourse-cdn.com/v4/letter/s/e9c0ed/32.png) [@sammyt](https://community.cartalk.com/u/sammyt)\
**Post date:** [July 5, 2011, 2:24pm UTC](https://community.cartalk.com/t/contour-shakes-erratically-sometimes/65971/1 "2011-07-05T14:24:01Z")

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1996 Ford Contour 4cy. Runs great, except once in a while driving down the highway, it seems to go out of gear and then back in. Shakes violently. Have to pull over. Never know when it will happen. Once/twice a month maybe. Always when it is warm. Never in a Michigan winter. I have done all the normal tranny maintenance. Neutral Safety switch ???  
Other then that, the tranny shifts great. Very Bizarre !

Thank you.

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**Author:** ![sammyt](https://avatars.discourse-cdn.com/v4/letter/s/e9c0ed/32.png) [@sammyt](https://community.cartalk.com/u/sammyt)\
**Post date:** [July 19, 2011, 4:44pm UTC](https://community.cartalk.com/t/contour-shakes-erratically-sometimes/65971/2 "2011-07-19T16:44:31Z")

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I think I diagnosed the problem.

I installed a Transmission Range Sensor a.k.a. Neutral Safety Switch…