I bought a 2006 LR Range Rover HSE 4.4 liter with 75K (no turbo). At the time of purchase, I had no overheating issues and just nominal tire fixes and some garnish enhancements that I decided to do.
Then I noticed a small leak when I was having the car aligned. I did a pressure test and it yielded that the Thermostat housing was leaking - I didn't decide to fix the issue, so I sent it into a shop, where the work was done. The car started to overheat 3 days later. I purchased a clutch fan & the water pump and replaced them both myself to no avail; the issue still persists.
I just noticed that the reservoir tank is bloated and the lower hose is not warm ... a deeper research shows that the radiator has had some kind of patch work done to it. At this point, I'm thinking of getting the radiator and a new reservoir tank and tackling it myself over the holiday weekend.
My question is ... if I go through with it and replace this radiator and the reservoir tank and it still overheats, is it almost positive that the cars has a blown head gasket or can it be even worst case scenario a blown block engine?
Anyone with any insight - I would greatly appreciate it ...
Thanks and sorry for the inconvenience ...