Ok so still having problems with my V8 Disco 3.9EFI. The symptoms are as follows. Seems to behave is you keep it at about 2.5k revs, all is good. If you put it underload it over heats. Or on long journeys it over heats. When it over heats, its squirts water out through the overflow tank. when it cools i check the levels and there seems to be almost no water in it (more loss than whats been squirted).
So far I have changed the thermostat, the water pump. I am doing a compression test tomorrow. But there is no signs of steam in the exhaust or water in the oil. Has anyone else had this ? Could it be a cracked block, or purhaps the heater matrix ?
Ideas people would be really appreicated.
Thanks,
Richy.