# 2001 nissan altama **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [October 9, 2007, 11:13pm UTC](https://community.cartalk.com/t/2001-nissan-altama/5737 "2007-10-09T23:13:22Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![bert\_botelho](https://avatars.discourse-cdn.com/v4/letter/b/d78d45/32.png) [@bert\_botelho](https://community.cartalk.com/u/bert_botelho)\ **Post date:** [October 9, 2007, 11:13pm UTC](https://community.cartalk.com/t/2001-nissan-altama/5737/1 "2007-10-09T23:13:22Z")
temp guage moves down the faster i go, sometimes bouncing donwards. any ideas? ---
**Author:** ![Roadrunner](https://avatars.discourse-cdn.com/v4/letter/r/d2c977/32.png) [@Roadrunner](https://community.cartalk.com/u/Roadrunner)\ **Post date:** [October 9, 2007, 11:35pm UTC](https://community.cartalk.com/t/2001-nissan-altama/5737/2 "2007-10-09T23:35:28Z")
Possible faulty coolant temp sensor. (If that is what your are referring to) ---
**Author:** ![Joseph\_E\_Meehan](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/joseph_e_meehan/32/21_2.png) [@Joseph\_E\_Meehan](https://community.cartalk.com/u/Joseph_E_Meehan)\ **Post date:** [October 10, 2007, 9:54am UTC](https://community.cartalk.com/t/2001-nissan-altama/5737/3 "2007-10-10T09:54:45Z")
When you say down, do you mean back to normal or do you mean down to cold. If it appears to run hot when driving slow, I would be looking at the radiator fan or maybe the water pump. ---
**Author:** ![mcparadise](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mcparadise/32/32_2.png) [@mcparadise](https://community.cartalk.com/u/mcparadise)\ **Post date:** [October 10, 2007, 1:38pm UTC](https://community.cartalk.com/t/2001-nissan-altama/5737/4 "2007-10-10T13:38:04Z")
I’d check the level of coolant in the radiator (when cold), install a new thermostat, and check the connection at the coolant temp sensor. If the gauge continues to jump around after a new thermostat is installed, replace the temp sensor.