marjon said:

Earths and old wiring are always an issue. As for yours you may do better having a good look clean your earths and then if you still have problems start a new Fred in the relevant section.
They all have different issues and not sure the age of yours if it has a voltage stabiliser for the dash gauges, or even if it has anything to do with the temp gauge.

J

Click to expand...

Perle Elhannan said:

Sorry, I thought this might be a relevant section being "electrical." Probably should start a new thread in this subheading no? This will be a learning situation for whatever mechanical inclinations may suddenly appear on my part, but also anything dealing with a computer. Will keep trying after evening chores...cheers...rr

Click to expand...

marjon said:

This is in the defender 90/110/130 section. Is this what you are having problems with or do you have a series? Which is a different section with a series electrical guru. Always best to start a new thread with good description for new folks when they find the search box or even showing on goggle

look around you will get the hang of it. Scroll down this list and see what fits best https://www.landyzone.co.uk/forum/

J

Click to expand...

miktdish said:

@Perle Elhannan - the temp sensor is a 'varistor' that changes/lowers it's resistance as it get hotter.
When the engine is cold no volts get through, as it warms up the voltage climbs.
To test the temp meter, unplug the cable from the sensor and touch it on the thermostat housing/engine and the needle will go to HOT

If it doesn't then you are not feeding 12V to the sensor, if it stays HOT without touching anything you have an earth fault.

Click to expand...

miktdish said:

@Perle Elhannan - the temp sensor is a 'varistor' that changes/lowers it's resistance as it get hotter.
When the engine is cold no volts get through, as it warms up the voltage climbs.
To test the temp meter, unplug the cable from the sensor and touch it on the thermostat housing/engine and the needle will go to HOT

If it doesn't then you are not feeding 12V to the sensor, if it stays HOT without touching anything you have an earth fault.

Click to expand...

Perle Elhannan said:

Thanks. Will give a look tomorrow. cheers...rr

Click to expand...