# 2006 Colorado temp gauge

**URL:** <https://community.cartalk.com/t/2006-colorado-temp-gauge/199561>\
**Category:** Maintenance/Repairs\
**Tags:** chevrolet, colorado\
**Created:** [March 21, 2025, 12:32am UTC](https://community.cartalk.com/t/2006-colorado-temp-gauge/199561 "2025-03-21T00:32:47Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![johnk0922\_193209](https://avatars.discourse-cdn.com/v4/letter/j/ecc23a/32.png) [@johnk0922\_193209](https://community.cartalk.com/u/johnk0922_193209)\
**Post date:** [March 21, 2025, 12:32am UTC](https://community.cartalk.com/t/2006-colorado-temp-gauge/199561/1 "2025-03-21T00:32:47Z")

</div>

When I start my truck the temp gauge goes up to normal, but as I drive the temp gauge starts dropping and goes all the way down causing problems with the RPM. Any ideas what can cause this.

---

<div class="post-metadata">

**Author:** ![cigroller](https://avatars.discourse-cdn.com/v4/letter/c/c68b51/32.png) [@cigroller](https://community.cartalk.com/u/cigroller)\
**Post date:** [March 21, 2025, 12:41am UTC](https://community.cartalk.com/t/2006-colorado-temp-gauge/199561/2 "2025-03-21T00:41:22Z")

</div>

Odd way for it to behave no matter what, but the first thing to do is get a look at what the engine coolant temp sensor “thinks” that the temps are. This is easy with even a very cheap OBD scantool. You can get Bluetooth OBDII dongles for cheap and pair them with freeware apps. Or pick up a basic corded model at any auto parts store.

Do you have any warning lights on the dash that are lit up?

---

<div class="post-metadata">

**Author:** ![davesmopar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/davesmopar/32/41750_2.png) [@davesmopar](https://community.cartalk.com/u/davesmopar)\
**Post date:** [March 21, 2025, 2:23am UTC](https://community.cartalk.com/t/2006-colorado-temp-gauge/199561/3 "2025-03-21T02:23:43Z")

</div>

Mr cigroller is referring to Live Data…

---

<div class="post-metadata">

**Author:** ![Cavell](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cavell/32/43396_2.png) [@Cavell](https://community.cartalk.com/u/Cavell)\
**Post date:** [March 21, 2025, 1:07pm UTC](https://community.cartalk.com/t/2006-colorado-temp-gauge/199561/4 "2025-03-21T13:07:10Z")

</div>

Is coolant level ok?  
Change thermostat.