or just use the bleed valve screw

 

It Should look like the black one with the screw





its located here by ur vin number lose it up to half way till u hear air coming out n let it sit like that for a good while till u sure its good

 

Must vacuum fill the cooling system on these.

 

I have a 04 350z and my radiator fans locked up there was a recall on the car but the previous own didn't do it so I have them replaced. Check and see if your fans are turning on it could be the same issue.

 

Well I can tell you I just fixed the intermittent overheating, warming up to 60-80% never in the red. My mechanic squeezed the hose and heard air passing through the radiator cap so we put a new Nissan cap. The thermostat was getting stuck sometimes. Replaced it with one from the dealer and the car is running perfect solid. The bleeding wasn't that bad. It's true these cars need to be "burped" sometimes. I'm happy to have new coolant in there so a complete flush is checked off. Good luck with your issue, although I started to get scared it might be the head gasket for a second because it was hard to diagnose. Been running perfect for months now.

 

Air bubbles is what caused my overheating. Never bled it, but just let it run it's course. They appeared to happen after winter storage. (EDIT: I should say that I did refill the radiator fluid as quite a bit of it bubbled out.)

I think there's still a few bubbles left in there, so I may need to bled. I was in a car cruise -- more like a car parade, driving slower than 1st gear at idle -- and it almost overheated so I exited the cruise and was fine at higher speeds (30 mph).

 

Hello
i had the same problem and the cooling fans where not running fast enought in traffic, does the car only overheat in traffic?

 

is that original radiator? if so how many miles? its time to replace fans and radiator also replace the hoses and water pump it could be alot of things need more info on your car like mileage on it