Got a Bit of a problem with my gtv 3 litre v6, she keeps over heating. Had new water pump fitted new sensors the lot, was fine but has started over heating again, whilst pissing water/coolant out of the reservoir cap, fans kick in once or twice then stop and temperature continues to rise, then pisses lots of water/coolant out of the reservoir cap again. So fitted a new cap, but still doing the same. Anyone have any ideas why? I'm at a loss with it now.