2006 350z DE.
Car is still overheating, after purchasing new fans, radiator and, thermostat. What else could be the problem

 

did you bleed the air out of the system? keep bleeding...

once you think you've bleed every air bubble out, come back to the forum, search what others have done, and then go do that and bleed some more!

Then your problem will go away...

you're welcome!

 

I will be doing that when I get off, and I'll be sure to come back.

Thank you

 

I've posted these instructions I wrote up in a few threads, have at it:

Success story: https://g35driver.com/forums/engine-...erheating.html

Instructions:

Car cold
top off overflow tank
Jack up front end so radiator fill is highest point and radiator is at an angle to promote bubbles rising out of the fill neck
Buy funnel with taper on it. Cut funnel so you can tap it into the radiator fill cap and it will stay there/not leak as you fill it up higher than the radiator. (Or buy a lisle spill free funnel if you have time for amazon shipping). This is the secret
Fill radiator and funnel almost to top (distilled water or nissan coolant mix)
Squeeze lower and upper radiator hoses repeatedly to agitate the air bubbles out. Start with lower then upper and repeat. Fill funnel as necessary.
Start car with heater on 90 degrees but fan speed down low
Continue squeezing radiator hoses as it warms up for first 1 minute. You will see more air come out now that engine is running. Remember start at lower radiator hose.
rev engine quick a few times to about 3000rpm to agitate fluid in engine block
revisit and squeeze radiator hoses some more
Run car until radiator fans kick on. Don't run it much past this with the radiator open or it will suck a lot of coolant from your overflow when it cools down since the fluid is expanding at this point. I'd say 3-5 mins.
Squeeze around some more and fill funnel as necessary
turn car off
remove funnel
top off radiator once more, don't squeeze around this time or you could suck air in
install radiator cap
verify overflow still full
drop car
start car
idle until radiator fans kick on
rev engine once more a bit
Verify that pressure is building in coolant system by squeezing upper radiator hose. You should not be able to flatten it completely
crack bleeder on passenger side, might get one last bit of air

DONE

Check overflow the next morning and top off if necessary.

It's a pain in the butt. is this process NECESSARY? No. Does it make things easier? Yes.

If you verify your system is building pressure it will tell us which direction to go in

 

Do what Yosip says or use a UView airlock airlift purge tool with shop air (or find a garage that can do that for you.) Your problem will be solved in about 5 minutes.