The car keeps overheating there is no leaks but the car always need fluid the car makes a little rattling noise but it doesnt sound like the heads

Brown Milky Oil sounds like your head gasket has gone and coolant water is mixing with engine oil. Unless you have an oil cooler, it may be from there.

You can locate the rattling if you get someone to start it with the hood up.

A car that keeps overheating should not be driven.

Light blue smoke is burning engine oil. This is probably a sign that overheating has damaged the engine.

Water pump can leak coolant, make a noise and even wreck the engine under some circumstances but they have little to do with engine oil. If the water pump leaks it is an external leak.

If there are no external coolant leaks then yes it could be the head gasket or perhaps a crack somewhere...

You do have a coolant leak, coolant is on the ground under the car then? The noise you describe is from a badly overheated engine. I think you have blown head gaskets

Doesn't matter you have a leak

You should have stopped using it
when you first noticed the leak & had
it resolved,now you may need a new pump

did you have the heads worked at a machine shop (pressure tested, valves seals replaced and ground , and milled )? also how many mies are on the engine? the ticking noise very well could be timing chain noise. as for the overheating did you check the water pump to make sure your getting proper circulation. you can test it by removing one heater hose from the intake then start the engine. if the pump is good then water should spray out of the hose if the pump is weak then the water may trickle out.

with the car cold for a few hours, take off the cap on the coolant tank and look at it, it should be clean and red. If it's not, or looks 'oil slicky' you may have a coolant leak into your oil. You can also drain the oil to see this, the oil should look like regular black oil, if it's bubbly, foamy or even light tan/brown you most likely have a blown head gasket or upper intake gasket.

Was the car using much coolant before you forgot to replace the coolant bottle cap?

The clinking noise you describe - that may be 'pinking'.. a noise caused by an incorrect air/fuel mix .. and also a symptom of a blown head gasket. Another symptom of a blown head gasket is white smoke (steam...) from the exhaust.

First, check your engine oil on the dipstick. If the oil is a creamy grey colour this indicates a blown head gasket. The creamy grey colour is caused by coolant finding its way into the oil system.

Fill up your coolant bottle with coolant. Leave the cap off, and start the engine and let it tick over for 10 minutes. As the engine warms up air will escape from the coolant level - keep topping up as necessary.

Keep your eye open for extreme bubbling in the coolant bottle - violent bubbling in the coolant bottle is caused by exhaust gases finding their way into the cooling system via a defective head gasket.

If there's no violent bubbling, replace the coolant bottle cap when the engine has ticked over for a few minutes..

... and then begin to look for leaks as the engine ticks over. Look under the car to see if there's any falling fluid. Check around the radiator and the hoses. Check that the coolant bottle itself isn't leaking.

You say your car isn't overheating - that's a positive. One symptom of a blown head gasket is overheating.

However, your coolant is going somewhere and you should try and find out where ... If it isn't a leak from somewhere, it may well be the head gasket.

Prices? To have a cylinder head gasket fixed costs around £500 - £1000 British pounds. A coolant bottle costs around £30 (look on Ebay)

If the head gasket is leaking/defective you can try a modern sealant/repair, which I am told are now quite good. Have a look on Ebay:

3 229results for cylinder head sealant

it's possible you might need to just change the trans case fluid.... it's a pretty simple task, i usually do all the small minor work first before i take it to a dealer to fix.... if they said you need a new trans case, but didn't tell you why, more than likely there might be something you could do yourself to make it better... those service men have been working around vehicles long enough, they should be able to tell you exactly what's wrong!
i would also do a tranny fluid change to... some of the noise could be coming from there too -- when you change either fluid, add a little lucas transmission fluid stabilizer, it helps alot with seals and makes the fluid stick to the gears better...

Since the car ran well for a month after you put the new thermostat, I would say that you have a leak somewhere. Look under the car every time you park, and keep filling the coolant. It is possible that you have a more serious problem, but until you figure out what it is, this may keep you on the road. Check the fluid level every day. Tell us what happens. Also make sure your oil is not milky and there is no oil in the radiator - if this happens, you have serious problems.