# Temperature Gauge **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [June 2, 2010, 5:56pm UTC](https://community.cartalk.com/t/temperature-gauge/49758 "2010-06-02T17:56:12Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![dontlikecars](https://avatars.discourse-cdn.com/v4/letter/d/9d8465/32.png) [@dontlikecars](https://community.cartalk.com/u/dontlikecars)\ **Post date:** [June 2, 2010, 5:56pm UTC](https://community.cartalk.com/t/temperature-gauge/49758/1 "2010-06-02T17:56:12Z")
I have a 01 Hyundai Elantra, and today my cap for the antifreeze blew off while I was sitting idle. We refilled the antifreeze, and right after that, I drove probably a quarter of a mile and my temperature gauge shot up to an abnormal level. My air conditioner also quit working, I don’t know if this is related. What could be the problem? All the hoses look good. ---
**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:** [June 2, 2010, 6:56pm UTC](https://community.cartalk.com/t/temperature-gauge/49758/2 "2010-06-02T18:56:06Z")
It could be several things but it sure sounds like a head gasket. ---
**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:** [June 2, 2010, 7:03pm UTC](https://community.cartalk.com/t/temperature-gauge/49758/3 "2010-06-02T19:03:09Z")
Clearly your engine is overheating. The list of possibilities includes but is not limited to a stuck thermostat, a dead cooling fan (or temp sensor or relay), a clogged radiator, and a worn out water pump. Or even a blown headgasket. Someone needs to look at this and diagnose it.