hello house please advice me on what to do. my nissan altima overheats vigorously. what is the cause and solution of the problem. please advice me accordinly. thank you very much

BOSON,
it is natural for cars with V6 engine to overheat according to my best mechanic.I was told that all V6 engines were meant for long distance but with overcrowding of lagos roads it tends to overheat alot that is why i avoid buying V6 engines.
They are good on the express roads but bad within the towns i will advice you go to a market for a minimal solution because any mechanic that said he can fix lied.
Oneluv

In order to help you, I need to know a few things;

1. Do you have to top the coolant everyday? ie. does it go down after a day's journey?
2. Do you have an Air Conditioner?
3. If you have an air conditioner, does it heat when the AC is off as well?
4. Do you have an auxillary fan OR is it only the main engine fan that you have in the car?
5. If its ONLY the main engine fan you have in the car; did you or anyone at any point in time permanent the main fan to the engine block? ie. so it rolls with the engine?

@switchmax
I do not know what on earth your Mechanic is talking about. I don not have any vehichle with less than a V6 engine AND I do not have an overheating problem.

Check your coolant level first(both radiator and reservoir.
Run the car till its hot, open the hood and stand i front of the car for 5 mins, if the fan comes on move to next step.

Turn off the engine and feel all the the coolant hoses feel the top hose and bottom hose by hand(basically, the hose going in and the one coming out of the water pump) if there is a big difference then it might suggest you water pump is faulty, your thermostat failed closed, or radiator clogged up.

State your findings

well am sorry house. would have replied b4 now but i was in the village and there is no network. my friend took the car to a mechanic and they changed the radiator. the overheating seems to have stopped. only that the noise of the vehicle remains unbearable. what can i do?

I'm glad there is progress with the overheating - hope the new radiator was not too expensive. For the noise, its important you specify where its coming from;
Engine side?, Exhaust?, wheels? Do let us know.