Inquiring minds

[Rosco Jenkins]

Hello friends, I’m Rosco, from Orlando Florida, the weather is greater the majority of the time. But I have a 2006 Infiniti Fx35 and it keeps over heating. I’ve changed the thermostat, water pump, fan works, and radiator doesn’t have any visible leaks (changed both 7 months ago, fan and radiator). I was told that I might have a cracked head gasket seal, so I tried blue devil head gasket sealant and the samething happened. I really need some help here, trying to avoid getting another car..

 

[Alex Betancourt]

Hey Rosco
Have you tried changing out the coolant temperature sensor?? Does the fan kick on when the car is warmed up and starting to overheat??

 

[Rosco Jenkins]

I haven’t tried the temperature sensor but both fans does come on when the engine heats up

 

[TheMole]

Did you replace those parts yourself or a mechanic? Also, were the parts replaced for preventative maintenance or because it was overheating? Reason I ask is because these VQ35 motors are picky when bleeding the cooling system so there may still be some air bubbles.

Here are a couple of vids I found through a quick search from a g35 and 350z (same motors):