Wylout:

Help!!! my car is overheating__

1st its a nissan maxima 2000=

The only thing i have done since i noticed the quick rise in temperature was to flush the radiator.
Now it still heats up but not as fast as before.
If i put on the ac it overheats faster.
With the windows down the temperature meter climbs up and down slowly (Most times steady though closer to the hotter part of the meter).
No leaks, No reduction in volume of coolant, --- can't think of any other useful information i should give.

Siena:

When you flushed the cooling system, what did you fill it up with? Did you purge it of any possible air locks?

ask4double:

Do u get to notice water shortage in ur radiator? 2nd how many cell is the car radiator? 3rd is there any sight of mixture of oil and water? Answers to these questions will go along way to solving ur problem.

Wylout:

I filled with a 50/50 mix of water and coolant (abro). Possible airlock---yes i did. I parked it on a slope after i left the engine running for about 15mins and after had cooled down, i opened the radiator cap. Hope that was right?
All through today the car temperature was not so high though it was not at its usual low temperature (somewhere in the middle of the gauge) but as soon as i turn on the ac----it starts having a fever.

eddy42k:

oga if u have done all siena told u and it dosnt work , well i will sugest u check the water pump(MAYBE REPLCACE) cos nissan detest over heating before u know it ur engine mite start smoking weed

ikeyman00:

@@@

maybe u should change the thermostart to another o

i understand it goes with mileage

or is it that the condenser is bad that it doesnt allow proper air circulation??

cretin:

the condenser might be the culprit, especially if it has leaked in the past n was patched by blocking some cells, this reduces the cooling area/capacicity of the radiator and thus it will be over heating at will, is ur car fresh toks or naija used?, a thorough inspection of the radiator shud expose this problem

Wylout:

I had it prior to the flush

miccodb:

why are we guessing so much here with only little information to work with? you said you had this issue prior to the flush so i belive you have to tell the genesis of this issue as to how the excessive heating started. what changed before vehicle started heating and all so fault can be traced more efficiently.

kaystar80:

have the top cylinder gasket replaced, some nissan models from early 2000s with the have this issue from the factory, original oem gasket was too thin and there are service bulletins to this effect

Wylout:

Updates

The cause of the overheating was the water pump. The fans(or blades of the pump) were broken. It had only one blade left out of about 3. Probably as a result of rust (not sure though). I think this has to do with the coolant used in filling up the radiator.

ambyzown:

I use a nissan maxima 2001 model and this is what you need to do.
Remove your car's thermostat and water control valve ASAP. I had the same problem and had both removed, now, my engine temperature never exceeds 94^oC
However, before you do that, confirm that:
1. Your temperature sensor is not playing tricks on you.
2. Your reserve tank is not overflowing (indicating a deteriorated head gasket)
3. Your radiator cap is working properly
For more issues on your maxima, visit my thread at https://www.nairaland.com/nigeria/topic-865425.0.html#msg10144622

bong4:


Did you say 94 degress. ahh when my own pass 45 degrees, i am already panicking. please what is the best temperature level for a vehicle, ac or no ac