boneheaddread
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Hi well here goes my first post , so I will start from the beginning the water pump on my 200tdi disco had been dripping for a few week so I bought a new pump but never got round to fitting it so I was just topping up every week with a small amount of water , then a few weeks back the disco got stolen and believe it or not got a call from Essex police last week to say that they had recovered it and that it had been used in at least 5 caravan thefts , when I had it home and started to go through what they had trashed ( steering lock , door cards, immobiliser, drivers door lock e.c.t.) and noticed that the water pump had finally given up and the whole lump was covered in the tell tale ginger water stains of over heating and water loss , so it seems that they ran the disco until it over heated and then abandoned it , so I was thinking cracked head or head gasket gone at least , so now to the problem after fitting the new water pump , then bleeding the air out of the system I then did a head gasket/cracked head test ( with a air tester ) nothing so I then took it for a drive done 40 miles , runs fine no loss of power , no overheating , no white smoke from the exhaust , no water in oil /oil in water / heater working fine but there seems to be loads of pressure at the header tank every time I stop and open the bonnet I can hear it squealing and see steam coming from the cap ??? but as I say its not overheating and I am not losing water anywhere else ??? any thoughts :fighting: