Chippy
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| posted on 13/11/08 at 01:44 PM |
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Testing water temp gauge and sensor?
Hi, my water temp gauge has stopped reading, I have checked that the gauge is getting 12V and that 7V is leaving the gauge and arriving at the sensor,
but how can I check which part is faulty? Any help greatly appreciated. Cheers Ray
To make a car go faster, just add lightness. Colin Chapman - OR - fit a bigger engine. Chippy
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02GF74
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| posted on 13/11/08 at 01:57 PM |
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easy - breifly earth the wire going from the guage to the sensor - the needle should shoot off into the high temp region.
If not, then gauge is faulty.
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Chippy
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| posted on 13/11/08 at 02:07 PM |
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Ahh! thanks, didn't think of that, simple when you come down to it, as the sensor is just a variable earth. Thanks, Ray
To make a car go faster, just add lightness. Colin Chapman - OR - fit a bigger engine. Chippy
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02GF74
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| posted on 13/11/08 at 02:11 PM |
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actually is is a variable resistor with a negative coefficient of resistance i.e. as temperature goes up, the resistance goes down. Well, that is how
most of them work.
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Chippy
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| posted on 13/11/08 at 11:37 PM |
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Well regardless of how, or even why it works, it does now. Went out and got a new sensor, and all is happy again. Cheers Ray
To make a car go faster, just add lightness. Colin Chapman - OR - fit a bigger engine. Chippy
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