Thread: Cooling fan

can you turn it when the engines off?

I think it is the electric fan not the viscous one, it sounds consistent and does not change with revs etc, is the viscous electronically controlled?.
I am having another look over it tomorrow, anything I should be looking for other than the regular checks?

1/ Faulty temp sensor.
2/ ECU Upset during a low voltage situation i.e crook battery. Needs a quick check/ reset with Nanocom or Testbook.
3/ The engine has run low on coolant /overheated and the ECU has defaulted to have the fan on all the time. (may not be the correct technical description but you get the point)

cheers

Thanks for that,

The car idles and drives very smoothly, power is adequate but it's no rocketship.
It drives too well to be a headgasket issue (in my opinion), but I don't want to inherit someone else problem.
I will have a more thorough look tomorrow.

Dont forget the fan runs all the time the air con is switched on

I'm pretty sure the air con was off, there was nothing displaed in the control panel.
Does that mean it was off'?

Originally Posted by SiddersC

Thanks for that,

The car idles and drives very smoothly, power is adequate but it's no rocketship.
It drives too well to be a headgasket issue (in my opinion), but I don't want to inherit someone else problem.
I will have a more thorough look tomorrow.

Don't discount head gasket by how a TD5 motor runs. Often they can perform very well with the symptoms well masked without careful inspection. However the D2a is less prone than earlier models.

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If the A/C is off,the electric fan should not normally operate.
I would take it to a LR specialist to have it checked as to why it is on or move off to the next one.

As said,a crook head gasket will often not be obvious,but will cost heaps to get sorted correctly.

Oil in the harness could also be causing problems.