Hi I'm new to this forum and was wondering if somebody could point me in the right direction.
Recently I have bought a discovery 3.9 v8 and I appear to be having some issues with it overheating. This only seems to happen under load climbing fairly steep hills or in low box.
So far I have changed the thermostat to an 88degc from a 92degc. Fully working as I heated it up in a pan over the stove. I have also changed the coolant and also cleaned any debris out of the radiator with the garden hose. I have just also changed the viscous fan coupling as the fan did not seem to be kicking in as it should and there was little resistance on the fan.
The coolant system was bleed up after putting the coolant in.
i took it out tonight after replacing the viscous fan coupling and all seemed ok until I went up a long incline. I pulled over before the needle hit the top line before red turned off and got out.. opened the bonnet. The engine did not feel hot hot I could put my hand on top of the air intake for ages without any concern of burning my hand.
Could this be a dicky temperature sensor?
Anyone had anything simular?
Please help.. 😐
