F1 Rox

I heard that air bubble results when you change coolant the wrong way. How can I avoid it? What is the proper way of changing coolant? When I search the forum, no one talked about air bubbles. How big of a problem is it?

ajahearn

iTrader: (3)

Typically there are air relief valves on the radiator and engine body to allow the air to escape.

F1 Rox

so there isn't anything that I need to open or close on my 2k? Please clarify.

ajahearn

iTrader: (3)

You would need to open the valves while filling and then close them when you are done (fluid starts coming out). I believe the one on the radiator uses a hex bit. I don't know about the engine body ones.

karguy

I just flushed and refilled 2 Maxima's w/o any problems. All you have to do is slooowly refill the radiator and no air gets trapped.

ajahearn

iTrader: (3)

I just checked my 02 ESM and karguy is correct. No relief valves on the 02 Maxima. My wife's Quest needed the relief valves opened and I assumed the Max would be the same. The ESM says fill the radiator and reservoir tank. Run the motor and then check (and refill) radiator and reservoir.