# 2005 Nissan Sentra Overheating/No heat

**URL:** <https://community.cartalk.com/t/2005-nissan-sentra-overheating-no-heat/56559>\
**Category:** Maintenance/Repairs\
**Tags:** nissan, sentra\
**Created:** [October 18, 2010, 11:28pm UTC](https://community.cartalk.com/t/2005-nissan-sentra-overheating-no-heat/56559 "2010-10-18T23:28:24Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![rgallina](https://avatars.discourse-cdn.com/v4/letter/r/d9b06d/32.png) [@rgallina](https://community.cartalk.com/u/rgallina)\
**Post date:** [October 18, 2010, 11:28pm UTC](https://community.cartalk.com/t/2005-nissan-sentra-overheating-no-heat/56559/1 "2010-10-18T23:28:24Z")

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I have a 4 cyl 1.8 sentra with 102,000 miles. When I was driving the other day the temp gauge shot up to H and dropped to normal. This happened several times. With that, I’m not getting any heat in the car.  
  
  
  
 I put a new water pump in and the T-Stat has been changed twice (just in case). I flushed the radiator and flows fine. I flushed the engine and the flow seemed a little slow coming out but it did.Same with the heater core.  
  
  
  
 Any suggestions would be great!

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**Author:** ![Bladecutter](https://avatars.discourse-cdn.com/v4/letter/b/aeb1de/32.png) [@Bladecutter](https://community.cartalk.com/u/Bladecutter)\
**Post date:** [October 19, 2010, 3:29pm UTC](https://community.cartalk.com/t/2005-nissan-sentra-overheating-no-heat/56559/2 "2010-10-19T15:29:43Z")

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You most likely have air in your cooling system, that needs to be bled out.

BC.