First of all, I love my 2006 Range Rover 4.4 HSE. so far 140000 miles on the one I am using since 2012. Besides the usual maintenance which, I am able to do because of previous mechanical knowledge; I practically have no major problem with it.
I have gone thru the most common codes and even air suspension leaks. Some I come to understand and deal with. I am currently replacing most of the cable: Door, hood, tailgate etc... when they fail
I love the car so much, that I recently purchased another one from a friend with an overheating problem. So far, the radiator seems to be fine. The Thermostat is replaced. There is no leak that I can detect, The car has 147000 on the clock. I am told that the initial problem had to do with the water pump and was replaced.
Symptom: The car will run for 20-30 minutes at normal temperature before the fan accelerates and the temperature gauge starts moving very fast to the red zone." I usually turn off the car by then"
I do my best to bleed the system correctly on a few occasion
I am afraid that I am dealing with a blown head gasket. Any comments or advice will be greatly appreciated.