I have a 2003 Nissan 350z and normally it does blow hot air, but my girlfriend and I noticed yesterday that it wasn't really blowing hot air unless the car was moving. This is the first time I have ever noticed this issue but it is a problem, especially when it is 19 degrees outside. Any comments or suggestions to put me on the right track? Thanks!!

 

Burp the coolant system. I had the same problem now it blows like a champ

 

https://my350z.com/forum/8027649-post3.html

 

Thnjs guys. I will give this a try.

 

I'm having the same problem. I will try this out as well.
Thanks guys!