 Oil Temp Gauge, Testing question |
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| jim_hoyland |
 Apr 26 2015, 04:51 PM
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#1
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Get that VIN ?  Group: Members Posts: 9,332 Joined: 1-May 03 From: Sunset Beach, CA Member No.: 643 Region Association: Southern California 
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If the wire from the oil temp gauge is disconnected from the sender and grounded to the chassis, should this cause the gauge to read a maximum temp ? I assume that as oil gets hotter, resistance is reduced activating the needle in the gauge ?
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| stugray |
Apr 27 2015, 10:02 AM
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#2
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Advanced Member Group: Members Posts: 3,825 Joined: 17-September 09 From: Longmont, CO Member No.: 10,819 Region Association: None |
These temp sensors are Negative Coefficient Thermistors.
The resistance goes down as the temperature goes up. They approach a dead short as the oil temp exceeds 300 degrees (IIRC). So yes, shorting the wire should peg the meter to the Hot side. |
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Posts in this topic
jim_hoyland Oil Temp Gauge Apr 26 2015, 04:51 PM
Dave_Darling I believe that is how it works. I know that when ... Apr 26 2015, 09:48 PM era vulgaris I'm also trying to troubleshoot my incorrect-r... Apr 27 2015, 07:37 AM
jim_hoyland
I'm also trying to troubleshoot my incorrect-... Apr 27 2015, 09:19 AM timothy_nd28 :agree: Apr 27 2015, 11:43 AM 76-914 Be sure your sender matches the gage. Apr 27 2015, 12:37 PM malcolm2 If you can take the gauge to the kitchen it is eas... Apr 27 2015, 01:43 PM |
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