Cylinder head temperature location

[DOROTHY]

Hello,
Can someone help me please with the location of the Cylinder head temperature sensor location for my 2006 non supercharged XK. I have looked through my CD workshop manual but I cannot find this item anywhere. I am grateful for the help received from the members so far with this fault, but I am stuck.
Thanks
Rob

[mike020150]

The engine coolant temperature sensor is located in the thermostat housing. You will need to remove the housing to fit the sensor which is held in position by a clip which you remove upwards. Don't forget to renew the O ring seals on the housing as well as the sensor when completing the task. Mike.

[Andy P]

Hi Rob,as far as I know the 4.2L V8 does not have a cylinder head temperature sensor.
Some people confuse it with the engine coolant temperature sensor.
It does have an engine oil temperature sensor which is located near the oil filter.
I think the cylinder head temperature sensor first appeared on the 5.0L V8.
Any way good luck and hope that helps a bit.
Take care.
Andy

[andypryce]

In that case Rob I have no idea what it was I posted to you
I had the starting issue on my 2006 X150, and ordered a "cylinder Head temp sensor' from SNG Barratt after checking VIN etc to make sure it was the right part. In the event the issue improved so I never got round to fitting it. My understanding at the time was that this sends a message to the engine management ECU, hence if it is faulty the car 'thinks' it is a cold start when the engine is warm, hence the starting issue as presumably the fuel mixture is wrong. But I may be talking rubbish, if the part is no use Rob feel free to ditch it!

[Andy P]

Hi Rob/Andy,
Just had a look on the SNG website and found this part:

Which has Part No XR858700
Described as Sensor-Tempe which is the Engine Oil Temp Sensor .
I wonder if that is the part you have.
Take care.
Enjoy your cars.
Andy

[andypryce]

Hi Andy

Yes it certainly looks similar, from memory it was located below the water pump / thermostat housing, I took photos at the time I was planning to fit it, but I think I must have deleted them.

[DOROTHY]

Hi all,
Thanks again for all your posts. Confused or what!!. I will dig into the engine again to see if the sensor is actually fitted to the housing. I might have to wait for the problem to get worse so that a fault code appears. I love my XK, but sometimes she can be a little difficult. Again many thanks,
Rob