Dave,
As I said in my last post, heater working fine after changing thermostat but have other symptoms now!!
I get alot of pressure in the top radiator hose and a low level in my coolant expansion tank. When I release the cap the water level comes back up, but lower than it started. I put a small plastic bottle on the expansion tank overflow and have been catching water. So far the pattern seems to be, I catch water after a motorway journey of 65+mph, but not when running around town. The top hose is pressurised every time!! I am tending towards the first signs of headgasket failure although there is no water in oil or vics versa and no steam/ coolant in the exhaust.
Anyone any thoughts??
Graeme.