# Tach goes crazy - 05 Taurus

**URL:** <https://community.cartalk.com/t/tach-goes-crazy-05-taurus/62252>\
**Category:** Maintenance/Repairs\
**Created:** [March 5, 2011, 7:41pm UTC](https://community.cartalk.com/t/tach-goes-crazy-05-taurus/62252 "2011-03-05T19:41:16Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![ebko87](https://avatars.discourse-cdn.com/v4/letter/e/3ec8ea/32.png) [@ebko87](https://community.cartalk.com/u/ebko87)\
**Post date:** [March 5, 2011, 7:41pm UTC](https://community.cartalk.com/t/tach-goes-crazy-05-taurus/62252/1 "2011-03-05T19:41:16Z")

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2005 Ford Taurus, 80K miles, 6 cyl, 3L OHV engine. Sometimes when driving, the tachometer goes crazy - mostly goes down (~1000rpm). The car seems to run OK but I remember a friend years ago had a Taurus with a similar problem and it was some speed control switch/senor or something ??? Any ideas ??