Nissan Repair Questions? Ask a Mechanic for Answers ASAP
The way you bleed the coolant system is to first start with the car cold. Then raise the nose of the car as high as if it was on ramps. This way the air pocket can move to the top of the radiator. Then you will need a tool to help bleed it, every one I know uses what they call a coolant bucket. See image. You remove the radiator cap, and put this in its place and you fill the bucket about half way. Then you start the car with the heat on full, face mode, recirc on and fan speed 4. You may need to rev the engine to help burp out the air pockets. You know you have gotten all the air out when you have a slight burning sensation at the vents with you hand in front of it for about a min at idle. You may get good heat when reving the engine, but you want to make sure at idle. That is how you bleed a coolant system.
If you have any more questions on this, please feel free to ask. Thanks Jay!