2000 Maxima overheating after 20 min drive. I have been all over the site reading peoples post about overheating and they always find the issue. I have yet to fing my cause. Here's what I have done to try to fix the issue. Replaced the radiator and thermostat on the passenger side of the block. Replaced thermostat hiding under intake manifold. Bleed the system more times than I can count. Even tried water wetter. Both fans work. Car has 280k on it but burns very little oil and looses no coolant... Heat and AC work but can't use AC because the car will run hot in 10 min instead of 20. I'm at the end of the line here. I'm stumped! I hope someone can help. Because otherwise the car is in good shape with good power and little rust. Also no coolant in engine oil and no oil in coolant or loss of coolant.

 

It could be a clogged radiator passage. Or the issue could be on the electrical ECM side. The factory repair manual has a pretty good troubleshooting guide. Good luck!!! hope that you can find the issue.

 

Only thing left is new hose. Maybe the lower hose is collapsed?????

 

water pipe
i went though it and it was the water pipe
and considering that is the only thing you didn't list, it could be it, I had a shop do it.

 

https://maxima.org/forums/5th-genera...ml#post9228416

heres one thread, the full name is "water inlet pipe"