OK after reading through all kinds of threads I know now that the ar bubble issue that causes the 350z to overheat is somewhat of a common issue and a very easy fix. I have ecnountered this issue on my car for now at least 3 times. Everytime I have been able to resolve this issue without any problems. My question now is how often has this happened to others.... Even though it is a very easy fix I am starting to wonder where this air pocket is coming from or what is causing it. Keeping in mind that there are no apperant leaks to be found. Thanks in advance and any information would be helpful.

 

Well, you are aware that parts of your cooling system could blow up if you have too many large bubbles in there, just saying.. be careful over there. Coolant runs hot! Peace of mind is priceless.

 

I've never actually ran the car hot just gets past a little over the middle and I know right then and there that something is going on. The first time it happened I ended up going through 3 thermostats before I investigated the issue (waste of money). It still hapenns though today being the third time.

 

air pocket is created by not filling your coolant slow enough, even then you should check it and top it up after bringing it up to temp (make sure you let it cool first)

 

Have done that and the issue will go about 3 months or so before it presents itself again.