Temperature Gauge Not working

JDNs78FJ40

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Dec 3, 2018
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Draper Utah
For some reason the temp gauge in the original cluster in my 78' 40 series isn't working, all other gauges work great. My wiring harness was rebuilt by @Coolerman so I'm 99% sure the wiring is good. Aside from checking the connections is there anything else I should be checking?
 
Joined
Mar 10, 2005
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1,346
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CT
maybe this:


They may have the unit for your year.
 

JDNs78FJ40

SILVER Star
Joined
Dec 3, 2018
Messages
778
Location
Draper Utah
Tried grounding the wire that attaches to the sender and can’t get the needle to move? Bad gauge?
 

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