radiator

[carlie]

I know this question or similar has been asked many times!

but i cant find the thread,

My car has been overheating heaps----the radiator water is brown after flushing it myself its still brown------would havong my radiator professionly cleaned out help or what !!!!!!!!!!

[51jay]

You shouldn't be overheating at all, I would go and have it checked out at a radiator specialist

[tranman]

I think you may have a stuffed head gasket, with oil seeping into the coolant galleries and contaminating it. Check to see if your getting water mixed in with your oil also, as the oil becomes a chocolate colour.

Check Water/coolant into oil: Do this by taking out the dipstick or looking under the oil cap. Look for light/milky/chocolate colour in oil.

Check oil/combustion gasses in coolant: Turn the car on from cold. Take off radiator cap. If fresh, the coolant should be green and remain stagnant. A blown head gasket will cause the liquid to bubble and froth with a brown/milky colour.

It sounds serious.

[Panko]

Check the thermostat before assume it's the head gasket. Blown head gasket will cause missfiring as well,

so if the car does not miss fire then might not be blown head gasket. Make sure that the thermostat

does not stuck in close position, because that will stop coolant from the engine block get to the radiator

and will cause over heat.

Edited October 30, 2010 by Panko