 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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| era vulgaris |
Apr 27 2015, 07:37 AM
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#2
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J is for Genius Group: Members Posts: 982 Joined: 10-November 13 From: Raleigh, NC Member No.: 16,629 Region Association: South East States |
I'm also trying to troubleshoot my incorrect-reading oil temp gauge. Except mine is on the opposite end in that it's reading too low.
If the sender fails does it typically read too low or does it short to ground and read too high? |
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| jim_hoyland |
Apr 27 2015, 09:19 AM
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#3
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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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QUOTE(era vulgaris @ Apr 27 2015, 06:37 AM)  I'm also trying to troubleshoot my incorrect-reading oil temp gauge. Except mine is on the opposite end in that it's reading too low. If the sender fails does it typically read too low or does it short to ground and read too high? I haven't had a sender fail on me. It's important to match the senders max temp to your gauge. The best way I found to determine what the sender is doing is to remove it from the engine and submerge it in boiling water- a known temperature. IIRC, you will have to ground the sender to chassis while doing this; that is because the sender reduces resistance as it get hotter. Check the sender. There is a temp marked on the hex part |
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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
stugray These temp sensors are Negative Coefficient Thermi... Apr 27 2015, 10:02 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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