I seem to be losing all the water in my header tank on a regular basis, and coming into winter I am looking to get it sorted.
Now i've replaced a knackered radiator, and thought that this would sort the problem, but I am still losing water. The pipes to the rad have been tightened up, and there doesn't seem to be water coming from them.
I took it to a garage on saturday, and they mentioned the waterpump could be ****ed, but surely if it was knackered the car would be overheating as no water is being pumped around the cooling system? They also said they don't think the HG has failed, and there is no water in the oil and vice versa...
I'm at a bit of a brick wall with it atm, is there any common problems with 1.6 16v astra enignes regarding water loss? Could it be something to do with the heater matrix? or does that not hold any water?
Any help greatly appriciated, as it's going to end up with me getting a cambelt and waterpump, when I don't neccesarily need it.... (cambelt due next year anyway)
Thanks, sorry for the essay.