So what’s happening is it’s pumping water from my radiator to my overflow then leaking out of my overflow and also bubbling in there I replaced the rad rad cap thermostat had a tk test done not a cracked head apparently they sent very accurate anyway so took it an old boi who said u would smell the fuel in the diesel couldn’t smell anything nor was there crazy pressure in the top hose can’t be water pump it’s not a circulation problem and it’s also not leaking nor is it actually overheating my temp gauge reads fine and if it was overheating would be steam etc coming from my overflow I don’t think it’s the fan either cause again it’s not actually overheating but there’s a chance it could I’m gonna swap my fan with my mates and see what’s happens but I’m not hopeful I’ve had so many different people look at it no one can tell me a straight answer any info would be much appreciated cheers