Hi was on here about 6 weeks ago when it was confirmed that my head gasket had gone, i had the head skimmed and pressure tested. I had a few problems with it overheating to start with but then it setteled down. a few weeks ago it started to overheat again and the heaters went cooler, not cold but just luke warm. It only overheats on tickover and if i give it some revs it comes back down again the fan works because when i turn the air-con on it comes on and also ithas had a new fan swithch when i did the head, so i changed the heater controll valve bled the system but still warm heaters and overheating, i have bled and bled and bled but still the same, sometimes the haters get hot its doing my head in and amy ideas would be very helpful.