# Clicking noice from thermostat in 2005 Jeep Grand Cherokee **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [November 30, 2013, 6:05am UTC](https://community.cartalk.com/t/clicking-noice-from-thermostat-in-2005-jeep-grand-cherokee/82454 "2013-11-30T06:05:31Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Byron2005](https://avatars.discourse-cdn.com/v4/letter/b/7c8e57/32.png) [@Byron2005](https://community.cartalk.com/u/Byron2005)\ **Post date:** [November 30, 2013, 6:05am UTC](https://community.cartalk.com/t/clicking-noice-from-thermostat-in-2005-jeep-grand-cherokee/82454/1 "2013-11-30T06:05:31Z")
I recently began hearing a noise from my car when I change the temperature inside the vehicle. When I adjust my temperature control either direction, hotter or colder, I hear a temporary clicking noise that is pretty loud. It sounds like it is coming from behind the dash. It sounds mechanical and stops after a few seconds. I have a manual temperature dial. This is not a digital display or climate control. This is on a 2005 Jeep Grand Cherokee. Does anyone know what is wrong and how to fix it? Thanks so much for your help. Byron ---
**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 30, 2013, 7:22am UTC](https://community.cartalk.com/t/clicking-noice-from-thermostat-in-2005-jeep-grand-cherokee/82454/2 "2013-11-30T07:22:13Z")
The noise is probably from a defective blend door actuator motor. This is located behind a panel under the dash to the right of the gas pedal. Tester ---
**Author:** ![asemaster](https://avatars.discourse-cdn.com/v4/letter/a/5f9b8f/32.png) [@asemaster](https://community.cartalk.com/u/asemaster)\ **Post date:** [November 30, 2013, 8:31am UTC](https://community.cartalk.com/t/clicking-noice-from-thermostat-in-2005-jeep-grand-cherokee/82454/3 "2013-11-30T08:31:35Z")
What Tester said, though I would say faulty rather than defective. Defective implies failure during a warranty period. Faulty just means broken. When you turn your temperature dial your climate control system tells an electric motor to open or close the hot/cold blend door a certain amount. The plastic gears in these motors wear and eventually get noisy. Before too long the motor will stop controlling temperature and you’ll have to get it fixed. ---
**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:** [December 1, 2013, 8:34am UTC](https://community.cartalk.com/t/clicking-noice-from-thermostat-in-2005-jeep-grand-cherokee/82454/4 "2013-12-01T08:34:49Z")
I define a component being defective be it new or old, as being no longer effective in doing what it was designed to do. Tester ---
**Author:** ![asemaster](https://avatars.discourse-cdn.com/v4/letter/a/5f9b8f/32.png) [@asemaster](https://community.cartalk.com/u/asemaster)\ **Post date:** [December 1, 2013, 8:55am UTC](https://community.cartalk.com/t/clicking-noice-from-thermostat-in-2005-jeep-grand-cherokee/82454/5 "2013-12-01T08:55:10Z")
True, but components reach a point in their lives when breaking isn’t unexpected. Any moving part in a car has a finite life span. I define defective as being faulty within the expected life. After 8 years of daily use, I don’t find it unusual for the plastic gear in that actuator to be bad. Just normal wear and tear. ---
**Author:** ![knfenimore](https://avatars.discourse-cdn.com/v4/letter/k/9fc348/32.png) [@knfenimore](https://community.cartalk.com/u/knfenimore)\ **Post date:** [December 1, 2013, 8:09pm UTC](https://community.cartalk.com/t/clicking-noice-from-thermostat-in-2005-jeep-grand-cherokee/82454/6 "2013-12-01T20:09:26Z")
Your not doing bad. My 95 Dodge Intrepid lost a defrost door motor within 3 years. ---
**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\ **Post date:** [December 1, 2013, 10:46pm UTC](https://community.cartalk.com/t/clicking-noice-from-thermostat-in-2005-jeep-grand-cherokee/82454/7 "2013-12-01T22:46:45Z")
Oh no, not another linguistics debate!!! I was terrible at English. But everyone seems to understand me usually. Ain’t that the point?