I have Honda civic 2000 vti oriel experiencing some heating problem I have replaced the radiator now there is no heating problem but the water in radiator and its tank dries up when ever I'm on drive ,the drying rate of water is more when I move up with A/C.. I am tensed anyone can please help me out..

Are you using straight water?

Antifreeze is also needed in the summer time. When you use straight water, it boils and evaporates. You need a mix of 50% water and 50% antifreeze.

Have the head checked for warping and a blown head gasket or cracked block. Coolant may be being burned. Any white smoke?

Are you using straight water?

Antifreeze is also needed in the summer time. When you use straight water, it boils and evaporates. You need a mix of 50% water and 50% antifreeze.

Yes am using straight water... OK I will try your suggestion but yesterday I was driving with A/C on the thermostat gauge rises which indicates the engine heat up... iam so fed-up with this nonsense.. I can't understand what the basic problem is.

Using you A/C will cause your car to run hotter, so that isn't a real big concern. But if what I said doesn't work then the next thing to check would be what TxGreaseMonkey said. So check if you have white smoke coming out of the tale pipe.

Another thing you can check is fill it up with water and let it run for a while with the A/C OFF. Look to see if there is any water under the car. If there is, it could be a few things. Try to find where the water is coming from. You could have a cracked water pump, cracked hose, or busted radiator. And worse case is a cracked block (but you would have white smoke with that).

OK fine my friend I will let u know what happens.. thanks for the concern..