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To test the gauge take off the sender wire and hold it onto earth (engine etc). Within about 20 seconds the gauge should read maximum. If it does, then gauge is OK.
To test the gauge take off the sender wire and hold it onto earth (engine etc). Within about 20 seconds the gauge should read maximum. If it does, then gauge is OK.
Cheers V, thats a cracking test, ill do just that! Thank you.
As advised, connect the wire on the sender to chassis and the gauge should go to maximum, ( with ignition switched on ) this will prove the gauge is OK. To get a more accurate check of the reading there is an easy check and test to do. Water boils at 100 degrees centigrade at sea level, unless you live at the top of a very high mountain this will not change much. Remove/unscrew the temperature sender from the engine, connect the wire to the terminal, wrap a length of wire around the sender and connect to earth/chassis. Now place this in a kettle ( do not allow the spade terminal to go into the water or you will get a false reading ). Using an extension lead so you can boil the kettle with the temperature sender in the kettle ( keep the kettle lid open to prevent it switching off ) when the water is boiling note what the reading is, you will now know what 100 degrees centigrade is on the gauge scale. This should be very close to midway on the scale. Obviously take care as boiling water on the skin can resultin a sense of humour failure.
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