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help for the electrically challenged

912 Views 10 Replies 7 Participants Last post by  Kermit
Hi

I could use some help diagnosing a problem with oil temp gauge. It does not read temp. it has power and wiring looks good. If some know how to test it for fault i would appreciate it
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Hi

I could use some help diagnosing a problem with oil temp gauge. It does not read temp. it has power and wiring looks good. If some know how to test it for fault i would appreciate it
If you are absolutely sure it is getting power/signal from the sending unit, then the gauge is probably kaput.
 

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Most likely the sender (sensor). I've had one go bad --broken connection. The kind I had was a simple one-wire thermistor. Its resistance, measured with respect to the grounded pan, changed as the temp changed.
 
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